Trojan horse virus

What is a Trojan horse,
Penetration and external programs downloaded from the Internet, from the Format exe files, is added in with the fake external link and download the file to the program (typically). Was a Trojan virus on your computer. And penetration in the file system format.
 Seemingly have no problem does not appear. Destroyed, and the program automatically, but actually when you start the activity, and even their personal files, information, and steal top. Actually a very old virus risk.

The Trojans, and preventive measures.
Download the program until you need to be careful.
should always check the drive to install the program, download additional programs that are under it.
Then Ron, secure file download that even if you need to download and always run the vaccine program.
It need to do this as the most basic posture prevention can be 80% to 90%.

You can complain about is called if the Trojans do not have to worry about.
Once calm and free antivirus programs but not necessarily paid, please download
Typically pills, V3, and I'm
Been described with reference to the pills will Pills features a real-time detection, as mentioned above, when you download the program automatically detect the virus makes. The real-time detection is left on fodder
Viral therapy before the next inspection.
Them checking if I have a Trojan, Win-Trojan, Hot ket Hooks, is a Trojan horse virus.
The treatment, which haejusimyeon
If some virus has been removed, which may appear as 'isolated'.
It directly affects Windows system files, such as program because it can not be removed in order to restrict the use of isolation is. Therefore, you do not need to worry.


Before being infected with the virus, once I'd like to tell you the importance of steady periodic inspection and cautious attitude, download

VPN principles easy to understand

VPN
stands for virtual private network, virtual private network till.
VPN Iran like a private network using a public network such as the internet line, which can greatly reduce the cost of enterprise communications services. Internet leased line so that it can be used like encryption techniques and special communications system that provides services to corporate headquarters and branch or between branches can achieve the same effect as the private network install, more than 20-80% of the cost compared to leased lines, to reduce the is

As well as advantages, such as user's mobility and ease of network configuration. However, in order to build VPN security technology to encrypt your data must be backed.

Virtual Private Network service in the United States on U.S. Sprint and AT & T in the United States that began in the late 1980s, after spreading rapidly spread was Was introduced in the domestic VPN weakness of the security issues that were resolved as the last 98 years, and is faster and the rate of diffusion of the service.

VPN every company, every individually leased line than by sharing a public network, you want to provide leased-line services, and almost equal, while lowering the cost of departure from the ideas.
VPN encrypts the data before sending data over a public network, it is decrypted at the receiving side.
Several companies, including Microsoft, 3Com, PPTP (Point-to-Point Tunneling Protocol) is a standard protocol, proposed this protocol, the Microsoft Windows NT server built was.


Virtual Private Network
irtual private network of abbreviations.
(1) the public, or the public IP (Internet protocol) to build infrastructure within the private network. Means creating an imaginary line from the outside of the intranet (intranet) to connect to the intranet intranet users need without opening to the outside, and to allow access to the intranet. The original concept of the VPN even though you do not hold their own information networks and public data networks using built a personal network and direct operating and management that can be said.
(2) separate from the enterprise to build a private dedicated network without using a virtual private network service that can be used as build their own private network as if the network capabilities of the existing ISP. You do not need to build a network of separate and independent companies, as well as the domestic branch offices and business partners at home and abroad can provide you with information on various measures taken when the only foreign to the point where even able to connect to the Internet.
(3) standard that provides authentication and encrypted communication between the Internet site says the firewall extensions. Security is provided through the Internet users in the remote site VPN using other sites to gain access to sensitive data.

-------------------------------------------------- -------------------------------------
WOW ~ ~ That's a mouthful!
Understand you going?
Your way network work, as well as those already established principle, because as you know.

Beginners understand why you look at that article to you? ^ ^
Minutes, when you look at the contents of revelation and monitoring officials now understand ^ ^ are you going?


Knowing the background to understand the principles of the VPN cause the VPN to be more easily understood.

So we have two VPN (virtual private network) from a private network before let

Private network (internal network, the internal network, and configured with the internal IP network. Means the same.)
We easily use the Internet at home, and to connect the router and its Internet connection,
If you are using more than one computer connected to the router and it's just
The internal status of the network connection will
(Part of our internal IP, private IP once or twice heard from the internal network to use the
 IP.)

Companies within the same space when I saw a more significant scale, tens to hundreds of computers to the network internally
In other words, if this also is connected the internal network private network will

Party here long distances away from each other, in the same space rather than the internal network between computers
How do you build?

If you're a certain distance, if you are connected directly to the physical LAN cable or network equipment (as)

For example, the
A computer named, or the company is located in Seoul,
B is a computer or a company, which is located on Jeju Island

How do I get to two places to the internal network (VPN) to create .... ㅠ ㅠ

Both LAN cable must be connected directly to the army? Or a wireless connection?
Well as network equipment, but it can be directly connected using
That will cause the astronomical cost.

, But we think about it, A and B the region between
Numerous and invaluable internet too is like a spider's web.
Others writing geogeon geogeon I write, regardless of the huge amounts of Internet network
(As) length in between a myriad of B from A

Let's connect from A to B, if available internet Lock overflowing flies

So virtual private network refers to a system is started.

Internal network won one actually build physically realistic, but is not
Performance and effectiveness, it is actually built in the same virtual private network on which
Internal network ie network, VPN.

But conceivably use too because of security issues

Region A and VPN-related equipment and software in use
VPN related equipment and software in the B region.

If you do not solve these security problems, A -> B is passed to the data
Just as it is exposed to the external internet and data may be lost because
Can be transformed because

So,
A VPN security systems in the region, through the binary data through a network of external Internet
VPN security systems through local B that will arrive to the final destination B

Operation because the VPN security systems to each other through a network of external internet also
A <-> B mutually only be able to see each other and receiving the external approach itself is not.
Internal network, such as the role is literally

We often hear these days that it is VPN (Virtual Private Network) of
Start background and basic structure.

For those of you who have network industries, but its content is too basic if you feel
Back when first learning of the task, if you beginners who
No network side For those of you who have never ... Why I say you're using a VPN
Would become an easily understood.

Laptops and Netbooks Ultrabook

Netbooks, ultra-thin Ultrabook laptops sing so divided.
So I'm going to explain this difference.


Collectively by all the original laptop called
Attached to the console and monitor refers to a computer and good to carry.


For the rest of the add-ons you a general description of the
Majority of the wired LAN card and wireless network card is equipped with I
Wireless internet, wired internet are all supported.

And are separately mounted battery without charge after power use outside.
Below that the majority of the 6-cell and 3-cell or 4-cell and
More than that, much as the 8-cell or 9-cell.
Of course, larger capacity 8-cell or 9-cell to outside the cell longer writes.
Give or without using a laptop battery to separate information for a long time post
Charge when it is recommended to use the 80%.

Bluetooth-enabled Bluetooth devices to communicate with the
Easily connect to the bluetooth wireless mouse and keyboard, Bluetooth headset, the
Easier to use wireless.

Is equipped with HDMI port, so you connect the HDMI port on the monitor or TV
Watching high-definition video into a digital signal.

When you connect the storage media nowadays with USB3.0 with USB3.0 support
The data transfer speed is really fast.
Existing e-sata somehow cover this part had some uncomfortable part, but
USB3.0 recently mounted, as well as move data fast and easy as possible.

The existing SATA hard disk on the way (HDD)
Nowadays, a lot of kind of SSD hard disk is mounted out there.
The development of the hard disk when the dazzling development of the vast majority of computer dyeoteot really.
Pace accordingly came to SSD. The data transfer speed is really fast
Exaggerated, as soon as you press the power button if you set the Windows OS or Mac OS SSD
Saying that boot. Much faster.

From 32-bit to 64-bit current Windows settings completely been moved.
Performance is much improved, and the big advantage is the most important point that more than 4G of RAM recognized.
Existing 32-bit operating system only recognizes 3G of RAM, no matter how plugged in, but
Nowadays, the 64-bit operating system is set as above 4G RAM mount is.

Laptop There are also several types of resolution
Most kinds of laptop has a normal resolution.
General resolution of 1366 × 768 pixels.
Thereon pixel HD resolution, which is 1600 × 900
FullHD resolution of 1920 × 1080 pixels with the most current nopseu.
Also been implemented in the higher resolution MacBook.
Recently published the pixel resolution is 2880X1880.
You can enjoy a much higher pixel high-definition video.

But usually a lot of DVD-Multi ODD are mounted
In recent years, high-end laptops are equipped with a Blu-ray.
And grows by leaps and bounds the size of the USB storage media nowadays
That we have lost a lot of the features of the CD or DVD
Accordingly to lower the price or weight of laptops
ODD itself is often the fall.

Graphics cards are usually divided into internal and external.
Maybe External Built-in performance is far superior than the
The price is more expensive.
However, terms that occur a lot in these days's GPU.
Indeyo CPU inside the built-in graphics card.
If you like the HD 3000 or HD 4000 is based on Intel
A really good performance in 3D online games, so far.
But the game in order to enjoy the high-end
Nvidia's GeForce graphics card external Radeon ATI four mounted must.

The last
Provides a description of the CPU.
Maybe, depending on the type of the CPU, netbook, Ultrabook (ultra-thin), notebook so
Classification referred to.

Is the most popular CPU manufacturers INTEL and AMD.
But it accounts for the majority of the Intel CPU, because Intel will be mainly explained.

- Netbooks
Notebook is equipped with a low-power Atom (ATOM) CPU.
The majority of 10-inch size, so portability is really good.
Has low battery consumption is equipped with low-power CPU, I
When carrying out can be used for a long time.
However, low CPU performance and low performance graphics card
You can not do high-end work or play.
Majority of applications, the Internet, document creation, Internet lectures, watching movies (except for high-end), 2D game.

Identify the
CPU Name spherical N270, N450, N455, N550, N570 and so on, and
New N2100, N2600, N2800.


Ultrabook (Ultra Thin)
Traditionally called a family of ultra-thin but
Ultrabook classified as rising Nowadays, a lot of performance.
This notebook is also equipped with a low-power CPU and
11 inches, 12 inches from the mainstream.
Family of low-end netbook and laptop performance heavy joteuna between.
Existing ultra-thin but focused for maximum portability
Tara North portability and performance in today's wool, a lot of investment is a lot of useful products.
Accordingly, the price was a lot more expensive.

Identify the
's Relatively simple. U.S. U grow shakes CPU Name is the Ultrabook product stuck.
Such as i5-3317U (1.7GHz) these letters U grow as attached.

- Notebook
Laptop says the vast majority of 13 inches or more in size.
Presence of low-cost and low-end and high-end as well.
Each in accordance with the specifications, the price varies depending on the brand is
Fanty eopgeup there also exist as low-end CPU, Celeron product.
Because a high-end laptop for games or high-end work
15 inches is occupied by the majority of mainstream, prices and also a lot of expensive products.
Be used in most high-end CPU, but i Series i3, i5, i7 so classified.
i3, i5, while the dual-core i7 in a few products, except the majority of quad-core.
And need when compared to the i3, i5, i7 Turbo Boost feature is implemented in the CPU clock
Go up, so, business Siena will help a lot during the game.

Identify the
Current can be divided into three generations.
1st generation: i5-460M, i7-740QM, etc.
Second-generation (aka Sandy Bridge): i5-2450M, i7-2670QM, etc.
(2 in front of the back seat numbers are preceded by a number.)
Third-generation (aka Ivy Bridge): i5-3210M, i7-3610QM, etc.
(3 the number is preceded by the backseat in front of the number.)


I know I saw at least once a laptop as a whole.

Means of hibernation and principles

Hibernation mode, the computer is powered on, even though it is not a work in progress will not be lost. Information stored on the hard disk in RAM, and then, because the system is shut down. So, turn on the power of the computer by pressing the power button on the computer from hibernation again to return to the other button is unavailable (CMOS does not specifically set HOTKEY Power ON), will return.
 You can see a general boot time, like when you turn on the computer, the BIOS screen (the computer company logo) to float. (Ram on a common power supply is required and a power-saving mode is different.)

 Initial XP hibernation quickly. But sluggish Windows 7 10.1.0.2 to transition into hibernation, time and again, time to return, I could feel that it was a lot of information need to be written to the hard disk, the computer's random access memory (RAM) capacity due to increased.
 For example, 4GB of RAM is used during hibernation entry 500MB physical RAM usage, even by the amount of RAM installed on your system 4GB hard disk recording. (Reducing unnecessarily large RAM capacity quickly because hibernate.)

Finally, a normal system shutdown for an extended period of time if you do not, once used for reliable computer system instability and speed degradation and resource shortage may appear normal, shut down the system that we recommend.

Overclocking memory and the memory of CPU-Z, check the operation (even beginners can understand that)

1 Title (subject): Why not be displayed differently?????
  1) CPU-Z SPD understand and go items
  2) memory overhead clock when CPU-Z DRAM Frequency
  3) overclocking memory differs from the basic module (chip) according to the manufacturer specifications
  4) to finish review

So We will provide as much detail as possible and I'll slowly by reading.
^ ^ Unfortunately, you can only do. Seusyat no; ㅜ ㅜ


1 Title (subject): Why not be displayed differently?????

For example, one frequent question I heard recently

Overclock for 1866MHz (PC3-14900) 4GB memory, thinking
From the motherboard, RAM timing, clock, and the computer to normal voltage setting and works to
CPU-memory mounted on the Z SPD entries bandwidth PC3-10700 (667MHz) brings out the ...
Why is this? Are my settings wrong?
Or bad memory?
PC3-14900 memory, I mountain is, CPU-Z coming out with a PC3-10700
I bought the 1866MHz-memory, why 667MHz CPU-Z on stage?? ㅜ ㅜ

Memory purchased the above questions nutshell normal setting, but,
Why is CPU-Z is the issue of different figures doeneunya

If you do not have an exact theory for the first time or memory overclocking progress on that part
Is really a lot that can be embarrassing.



1) CPU-Z SPD understand and go items

Well, first of bandwidth part and its function in the entries in the SPD entry, look for
Role reads the corresponding portion of the installed memory module (chip) information only.
(Really just simply reads the role only.)

For example, DDR3 1333MHz (PC3-10600) was fitted to the specifications of the product,

CPU-Z SPD bandwidth PC3-10700 (667MHz) to display a portion of the reason that the
Notation to be sold when the corresponding memory and CPU-Z specification notation differences.

To explain in detail below,

DDR3 1333MHz (PC3-10600) memory that is sold in sizes from

1 DDR3 Double Date Rate specification. (Everybody knows you know, doubling (x2) ^ ^)
2 1333MHz: Preview (x2 times) behavior when the maximum effective clock to the DDR memory.
3 PC3-10600: 1333MHz clock quantify memory per second throughput (MB / s) specification.

Item 3 times of throughput (bandwidth) calculation is simple.
8 byte per second throughput of DDR memory. In other words, 64bit (8bit = 1byte.)
To 1333MHz 1333MHz rangeon seconds as it is converted to approximately 13.33 billion times the vibration speed by calculating
X 8byte 1333MHz = 10664 MB / s (this value is for sale at specifications, PC3-10600, as part of the specification.)

So the reason that display 10,664 items from SPD is 10,700 rounded.


Party and twice in the description above 1333MHz (x2) DDR to operate at the maximum effective clock;
Conversely, division 2, the original default clock would not it?
* 1333MHz / 2 = 666.5MHz

, DDR3 1333MHz (PC3-10600) specifications from the memory module (chip)
Valid basic room clock is 666.5MHz.
The corresponding module (chip) of the basic specifications (specs) 666.5MHz clock means literally.

So, as I explained above, the CPU-Z SPD entry module (basic information of the chip) itself (specifications, specs)
Rounding it with literally Reading because 666.5MHz to 667MHz which is why
(According to the additional memory and module manufacturer the DDR 1333MHz (PC3-10600) memory specifications at
 SPD PC3-10600 (666MHz) as the item is displayed. In that case, the
 ^ ^ You do not have to worry about the normal-Did you read the module information.)

CPU-Z Memory DRAM Frequency (frequency) in this state and look
Part of the same room with the SPD entry is valid, the clock (667MHz) is the part that is displayed.

However, you need to understand the parts

SPD entry module (chip) itself as reading notation as above, but because of the
CPU-Z Memory DRAM Frequency (frequency) of CPU internal clock rate
Set the actual behavior and action () Thread valid clock is displayed
Valid SPD entry room clock (667MHz) and always 100% identical figures may not be displayed.

System and in accordance with the CPU specifications 666MHz, 666.5MHz, 655MHz, 633.5MHz, etc.
Approximation can be displayed, or 100%, might appear to be the same figures.

Or even if with different specifications (clock) memory sub-clock
Automatically synchronize its sub-clock room doeseo valid clock is displayed.

Keep in mind this part accurately.



2) memory overhead clock when CPU-Z DRAM Frequency

Well above a general understanding of death, if memory overclocking after
CPU-Z that overclocking the memory normal operation which should
Some sense will come.

Check whether the normal operation of that memory after memory overclocking settings
In other words, CPU-Z Memory DRAM Frequency (frequency) levels should be.

If you set the normal for overclocking DDR3 1866MHz (PC3-14900) equipped with memory specifications He
Valid thread 1866MHz clock 1866MHz / 2 = 933MHz, so

CPU-Z Memory items DRAM Frequency (frequency) levels
Is displayed, or the closest approximation to the same 933MHz operation and must.



3) overclocking memory differs from the basic module (chip) according to the manufacturer specifications

Another important part of the

Why overclocking DDR3 1866MHz (PC3-14900) for specification Replace the memory was
CPU-Z SPD DDR3 1333MHz (PC3-10600) memory specifications when installing like
PC3-10700 (667MHz) that is displayed??

Chamber as previously described 1866MHz of effective clock 1866MHz / 2 = 933MHz;
PC3-14900 (933MHz) as the CPU-Z SPD entries must be labeled.

However, the memory itself overclocking memory for lf reason.

DDR3 1866MHz (PC3-14900) specifications specifications at the time of sale, but the memory of
Mounted on the actual corresponding memory module (chip) DDR3 1333MHz (PC3-10600) standard
Module.
However, the basic specification DDR3 1333MHz (PC3-10600) specifications of the module (chip), and
Actually DDR3 1866MHz (PC3-14900) to operate without problems until overclocking module (chip).

So, CPU-Z SPD entries finish DDR3 1333MHz (PC3-10600) memory specifications during the same
PC3-10700 (667MHz) is the part that is displayed.

He set the normal memory overclocking
Overclocked CPU-Z Memory DRAM Frequency (frequency) in the memory
If you have to make sure you operate as a normal clock,

CPU-Z SPD entries of the module (chip) Information You do not need to worry or feel embarrassed at all.

In fact, for overclocking DDR3 2400MHz (PC3-19200) standard memory during
Specification module (chip) DDR3 1333MHz (PC3-10600) is also available.
Even if the CPU-Z SPD entry and PC3-10700 (667MHz) will be displayed.

However, If you normally overclock settings,

Valid thread 2400MHz clock 2400MHz / 2 = 1200MHz, so

CPU-Z Memory items DRAM Frequency (frequency) levels
Is displayed, or the closest approximation to the same 1200MHz operates must.



4) to finish review

Conceivably something to be desired finished ^ ^
Some examples stick, finishing

DDR3 1600MHz (PC3-12800) memory specifications at
Valid thread 1600MHz clock 1600MHz / 2 = 800MHz, so

PC3-12800 (800MHz) as the CPU-Z SPD entries are displayed.

, CPU-Z Memory items DRAM Frequency (frequency) levels
Is displayed, or the closest approximation to the same 800MHz operation and must.


But, DDR3 1600MHz (PC3-12800) DDR3 1333MHz (PC3-10600) Specification
If equipped with two different clocks, ie the two is, as described above,

Because the sub-clock automatic synchronization

So, CPU-Z Memory items DRAM Frequency (frequency) levels
Effective Clock 1333MHz thread, 1333MHz / 2 = 666.5MHz
In other words, the closest approximation to the same 666.5MHz or behavior.


So far, I have explained the contents of the already over-experienced or memory clock
People know about the action part can be fairly easy to talk
PC to learn yet, but people or memory overclocking and CPU-Z Memory Data
^ ^ If you are unsure about the part, think a little bit of help will be rewarded.

In the event of an outbreak, the main reason?

Virus infection's going to show any symptoms?
Virus infection, even a little bit information leakage occurs. The reality is actually a Trojan horse infection, if even a little infection which personal information yuchyul information is leaked.

Trojan Horse: Trojan horse virus leakage of personal information, information is lost. To disclose personal information, as well as a PC operating system to destroy everything freezes.

Trojan Horse: Trojan horse virus causes is the culprit. Securities sites, gaming sites, private information, files, folders, files, regular files, credit card numbers, billing number to find out information actually says that all figured out sieve leaking information to escape. Upon infection, will cause enormous damage occurs. It's quite a dangerous virus. Virus infection, identify all of the information. Does the virus do not believe it realistically realize.

Hawke, fake virus: viral infection symptoms, just click the boot turned off or continue to feel strange system produces an output lift. Click annoyed when reminded that reminds tricked virus's. Click to even continue to do so, or floating virus. A big shock in the event of an outbreak, which is a virus.

This harmful programs running at to be sure. Eventually making can not be used when running the fake psychological anxiety or to come to a strange figure coming out this harmful programs and viruses.

Worm virus virus infection is very dangerous. Degradation is a virus that degrades CPU running at boot device. Severe if destroyed by discard.

Virus joke virus: This virus has infected a big psychological shock. To induce a fake picture or picture. Joke This is a criminal act of illegal program is a virus.

Love Virus: This virus, making the domestic world. When running slow propagation errand to the world the Network. System that a lot of risk, causing enormous damage in the event of an outbreak, the virus is.

CIH virus: This virus is determined at the time of the date headlines only occurs System issued CIH virus infection at a tremendous disadvantage come propagate only the world's top virus be caused by discarded.

Overclock Let Pt 2

Pt 2 CPU, RAM and Northbridge

1 RAM and Northbridge, and the relationship between the CPU overs to know.
 Rivers, as I explained in Part 1 of the CPU clock is the internal clock and the external clock can be divided into the relationship and the external clock can not stop eating them little stop eating them little raeya told that RAM and memory are closely related. To explain, for there should go beyond those first few know before I'll explain.

(1) bus speed, bandwidth
First have to know about the bus speed. Bus speed of internal clock multiplication because drainage.

-Speed ​​bus (Bus speed)
Hertz is the bus speed of the unit. Middle and high school physics time to fall asleep when you did those hertz per second frequency the revelation'd know. Computer is used as the number of data transfers per second. For example, the CPU, bus speed is 200Mhz 200 million times per second data transfer mean that. 's As simple as you do not know? Mega with 6 wins and 10 bets? killo, Mega, Giga, Tera, Peta in order 10 3 seungssik goes.

- Bandwidth
 The amount of bus transfers per second of data bandwidth. Since the Pentium, 64bit (8byte) external approach because the CPU at a time 8byte by data transmission. CPU bus speed of 200Mhz data transfer per second, 200 million times that I told you. But the QDR technology is anonymous. Real-time clock, 800Mhz FSB 200Mhz Quad peompim quadrupling good deal. In other words, the bus speed is 200Mhz, but actually acts like a 800Mhz means that Data transfer per second, 800 million times. Bandwidth so 800,000,000 * 8 (byte) 6400Mbyte / s.

Bandwidth = Effective Clock * 8byte
Effective Clock = apply technology to the real-time clock * by drainage
QDR technology applied to the CPU Effective Clock acting silkeulreok quadrupling of DDR memory technology, and technology is acting silkeulreok doubled.

Bandwidth of approximately above only need to know the simple arithmetic can tell.
Let's calculate the bandwidth ex) of Conroe E2140
E2140 bus speed is 200Mhz. FSB QDR loin year 200Mhz * 4 = 800Mhz. Here because the data transfer per clock 8byte by 800Mhz * 8 = 6400Mbyte/sec = 6.4Gbyte/sec.

The reason is easy to remember and try again repeatedly ** did earlier calculations is to

Each type * CPU bandwidth
Northwood bandwidth b, Prescot a (FSB533Mhz)
533Mhz * 8byte = 4.2GB / s
Prescott E, Pentium D, E21 * 0, E4 * 00 (800Mhz) the bandwidth of the
800Mhz * 8byte = 6.4Ghz / s
Conroe E6 * 00, E6 * 20, kaencheu field Q6600 (FSB 1066Mhz) the bandwidth of the
1066Mhz * 8byte = 8.5GB / s
Conroe E6 * 50, the bandwidth of the Q6700 (FSB 1333Mhz)
1333Mhz * 8byte = 10.7GB / s

About bandwidth, CPU-specific cleanup like this.

Noticed fast identification numbers vaguely familiar that your husband is in jail knew the will.
6400, 4200, 3200 ... Numbers with the same ram bearing on the kind of gotchas that Is successful if she knew ... ㅡ ㅡ "I understand when you sync the math is just.

(2) Synchronization

 Fit synchronize the CPU and DRAM bandwidth 1:1 says something. Why did they fit? This is because the bottleneck. Road side, saying traffic bottleneck and is the same principle. To send and receive data through the CPU and RAM, North Bridge. RAM and CPU bandwidth of either large or small, if the width of a way to move data suddenly become smaller and, accordingly, will be a bottleneck. Bandwidth is the width of the road, literally, quickly understand if you think I'm standing.

Bottlenecks Naver Encyclopedia (excerpt)
 Typically follow the narrowing of the neck of the water or liquid when suddenly pouring the bottle is to prevent Suddenly narrow for a vehicle packed with traffic congestion, which arises due to the width of the narrower roads where vehicle congestion occurs at the width of the road is wide, it is likened to the neck of the bottle is a bottleneck.
For example, two turns into a one-lane, two-lane road at the same time every Driving vehicles as increasing vehicle congestion by reducing the chronic traffic congestion will cause serious traffic can cause problems. Particularly inefficient bottlenecks that have a lot of time and economic damages from happening in the city at rush hour vehicles in a short period of time, Molly.

 Neck phenomena CPU RAM bandwidth more bandwidth than the plague caused the cursor. So it's 1:1 matching. Unconditionally unless Plague neck phenomenon would ram clock big ... if the night went.

 Then, How should I sync? Described above, the bandwidth of the CPU 드렸죠. Then the bandwidth of the ram.'d Compels
Can look at the specs of the RAM that comes this way.

DDR PC3200 400Mhz
DDR2 PC4200 533Mhz
DDR2 PC5300 667Mhz
.
.
.
 It's written in this way. Looking For example, the primacy of PC3200 (I'll) 400Mhz clock is valid. Silkeulreok the 200Mhz DDR (Duble Data Rate) technology is applied silkeulreok twice as long acting as a valid clock to 400Mhz.
(Briefly, above) over the CPU-Z to check your computer specs, different memory clock Asked Questions minutes deogunyo're pretty. Clock silkeulreok Yes, because it is shown in CPU-Z. Share memory types when talking clock's clock is valid. Think if you are in the context of the CPU of the same part of the QDR technology. From now on, with this CPU.
400M * 8 (byte) = 3200MB / s, RAM and the same kind of designation number. So PC3200 RAM will Anything else she goes. Directly calculate bosimyeon (exactly ** 00 This fall, but an approximation will) you'll notice

So now you will have noticed how to map synchronization. 's Bandwidth equal to the bandwidth of the CPU and the RAM PC4200 PC3200 RAM, FSB533 CPU FSB400-CPU ...... Pretty simple, huh?

By memory bandwidth
DDR PC3200 = 3.2GB / s
DDR2 PC4200 = 4.2GB / s
DDR2 PC5300 = 5.3GB / s
DDR2 PC6400 = 6.4GB / s
I do to this what names bandwidth because nothing Cleanup high.

(3) dual-channel
 However, a single ram, FSB 800Mhz, Prescot, since hardly match the number of CPU bandwidth becomes felt PC3200 DDR1 RAM with a maximum bandwidth of the bandwidth of 3.2GB / S is only because Prescot and synchronized with the bandwidth of 6.4GB / s almost impossible to The perceived performance difference between the previous days FSB533, Northwood b larger cache memory does not support Hyper-Threading, because even though there are some bottlenecks was low, so you're so desperate to synchronization degree was not.
 But it had armed and come out the Northwood C and E Prescott over high bandwidth FSB 800Mhz CPU with Hyper-Threading, dual-channel technology is more important.
 Doubling the bandwidth of dual-channel memory parallelization techniques. Use the operating speed of the ram and the motherboard must support (865P chipset from Intel chipset based dual-channel support)
 A typo in the overclocking even strangers know dual channel usually turns out. Will not add a description.
Recently released board supports dual channel. All except for some of the board supports dual-core CPU chipset supports dual channel. So mind the dual-channel configuration, synchronization, and if you think that is
If you really understand the top of the arithmetic synchronization only.

ex) E2140 (a lot of that CPU overhead.) memory synchronization.
E2140, the FSB is 800Mhz. Bandwidth of 6.4GB / s's came out (in the above example) Then you can create a memory dual channel 6.4GB / s of bandwidth to have Word of RAM to 3.2GB / s This is a dual channel configuration.

 But when there is any question here You've got to. Of the board supports dual-core CPU board that supports DDR RAM PC3200 DDR is, I wondered if I would like very few, and those who think we've got Then not to synchronize.
The answer is simple. CMOS setup menu to adjust the RAM clock. RAM 400Mhz clock, if not more RAM DDR pc3200 ram after you have configured a dual guess you would.

** Recent trend is that CPU is Core 2 Duo series, the existing NetBurst architecture of the Pentium 4 because it dramatically reduces the bottleneck, compared to the Pentium D was virtually one one motive rather than the CPU: DRAM 4:5 or 3: is generally supposed to hit 25 percent asynchronous. Core 2 Duo series sseusineun fit a 1:1 rather than a 1:1 ram clock than the clock synchronization, grasp the top step is recommended that Pentium 4 or Pentium D 1:1 principle agent.

2 North Bridge
 Relatively fast device that controls hardware of Northbridge chipset. Faster hardware, because the RAM to send and receive data via the CPU and Northbridge. So whether your CPU to the Motherboard support the FSB of the CPU North Bridge support? Maneunyaui is key.
 Why Northbridge overclocking matter whether! Those you do not know? Let me explain, if Overclock explain several times earlier, but ... work with him, but by raising the internal clock FSB by overclocking go up.
 Now, main board sseusineun you have just the FSB of the CPU when noohbeo only board that supports what about you? For example, you may want to reconsider that. Combination of P965 board that supports up to FSB1066 Core 2 Duo E6600 (FSB1066), albeit Where overclocking is this possible? The answer is 'almost Northbridge hang on' till juneunde

 Overs yield very honed Core 2 Duo Motherboard supports FSB1066 only do. Northbridge overclocking too. Expensive board of the Asus daeptta yield really do tend overs. But the vast majority of your high-end users, because ultimately the limits of the North Bree first will find.

 Conclusion what it is, overclock it to the board to support a slightly higher FSB than the FSB of the CPU's own will that you should write. Actually, do the board if it does not yield a good over-advanced.

(1) a regular clock, irregular clock
 You ever had a chance to do not know the regular clock, irregular clock over the word. What you're talking about and told what motherboard supports FSB CPU's FSB to fit over regular clock over clock over what otherwise irregular.
Motherboard FSB 533, 800, 1066, 1333 in this way step-by-step support. Then you will be able to know what a regular clock, clock.
CPU FSB to fit in a regular clock overhead, an external clock * 4 (QDR) CPU external clock, so we need a 533, 800, 1066, 1333, 133, 200, 266, to 333 to give me a regular clock over. Called Otherwise irregular offhandedly 123, 300 What to give in this way, say do clock over.
Some reason the regular clock over.
- PCI clock does not change. : PCI device can also happen via the North Bridge, and does not support FSB Northbridge (non-clock over) PCI devices when the clock changes and to act as if the sound is off or graphics, such as inability to unstable. Recent Motherboard fixed-function support most PCI PCI clock fixed in the CMOS setup by releasing irregular clock over even it does not matter.
Exactly 1:1 memory and can be synchronized memory also 400 (dual channel 800) 533 (dual-channel 1066) 667 (1333) dual channel step-by-step clock can be adjusted, so (700 this shit can not adjust the way only accurate clock over regular synchronized 1:1) can But again, as I said before a recent CPU does not mean much because the bottleneck slashed.

Regular clock over and finally, the recent trend of the CPU and Motherboard irregular clock over the larger meaning not Just for the record .... ㅡ ㅡ;

3 ram timing
 If you are interested in the hardware, RAM timing, what you'll notice. But the novice who do not ... well. Have you guys seen the numbers 4-4-4-8, 4-4-4-12, etc., written in this way in addition to the clock when the ram you will be (ㅡ ㅡ you have never seen If you find ;) Anyway, this set of RAM is required to run the RAM timing is value. Below will capture part in CPU-Z Memory
                                 
                                     

 Each item. CAS # Latency less than the RAM timing. Clocks, you know, you look at the trailing unit is the unit of time. Smaller the faster. Ram the initial launch when the SPD will wear. Of RAM is required to run the various information contained there. RAM timing, too Whatever damgyeoseo the initial launch will be in the SPD. But it is not a fixed value and can be modified arbitrarily.
 'Loosen' what to 'tighten' and that when overclocking RAM SPD set the timing to be smaller than the value of reducing significantly. Ie RAM timing, tighten the rest! Me set the value smaller than the default line in if is (CMOS setup) Usually when overclocking in the first RAM timing, loosen. RAM timing to release the RAM is because the timing and clock. To put it simply, one trillion RAM timing tightened up the clock clock loosen the mean rises.

 But the clock as the school bully, RAM timing constriction clock different than large performance improvements. But not able to catch two rabbits, the first to catch the larger rabbit thought. So once the RAM overclocking after releasing there, according to the timing of re-tighten the ram timing to tighten up. Jineunde

 Description for each item, RAM timing, link directly to be quite long, so I'll reply.

Overclock Let Pt 1

Side What is overclocking?
Pt 2 RAM, Northbridge, CPU
Pt 3 Training
Pt 4 silver new factory!

Want us to try this.

Part overclock What's this?

First things to note for the first time overclocking misleading, let's.

- Overclocked to shorten the life span of a computer is a dangerous thing.
 Did in the old days. But look now, almost all hardware designed with overclocking in mind that is not an exaggeration. Why? Of course, if the same product and found the hearts of overhead high yields products of living nature. So look almost disappeared in the direction to increase the safety and the stability of overclocked hardware now, and went on to design the various safety devices, the risk of overclocking is not an exaggeration.

Will also shorten the life span that is a misconception stems from a wrong understanding about the hardware. Oh, I misunderstood, we're not going to be. Obviously shortened life dreams. The basic lifetime of the hardware, but I think it will make a difference if you think a little. Here we are dealing with a CPU hardware is relatively long-lived. Eojigan be nearing the end of life comes time to replace the case is rare. Is seen foaming at the mouth, biting CPU overclocking users to oppose the life around you until you wrote and asked if stonewalling.

As I said, the life of this CPU is very long. I personally think you have on average at least 5-7 years more than life. Overs if the citizens do not modify the voltage should be less than 10% life reduction overclocking by 30% of the lifetime was reduced very significantly ('re caught. Because) We listened to the life before, I'm ttongkeom replacement do will be faster.

- "Overclocking chobonde Please tell me what to modify what"
 Activities are intellectuals can look very much there's a lot of questions like that asked. To overclocking, setting manual overclocking because as you if you think that many people will Of course overclocking is very easy. Banknotes if you know. However, children born to one mother is invariably different. Hardware, there are still no answers. Hardware made in the same factory on the same day, even looks different yield. This is on a different computer, you would not be such a thing as a fixed manual.
 Knowing easy overclocking, if you do not know Do not! This is my answer.

Clock hover-over success.
 Absolutely not. Computer boot overs and he had succeeded perfectly overclocking success doeseo performance levels as the computer that you can not see it. So, after thorough verification testing and stable room used to be. Lf stability test requires a lot of time and effort because you should never start with a light-hearted.

Roughly enough to overclock before I will talk about things you need to think.

First, all the responsibilities caused by overclocking it is my responsibility (☆ ☆ ☆ ☆ ☆)
A / S can be no component damage caused by overclocking, others can not blame This point must be thinking.

Second, the bar overhead to less than 30% do not.
 Why you can see at least two, called overclocking. Improve performance, the first and second self-satisfaction, which is less than 30% over neither of these can not be satisfied. Faintheartedly standing 10 to 20 percent over the performance improvement and not be able to experience the self-satisfaction. Vain A / S you get ten thousand. Bar, I do not think, it is better.

Third, the manual is not available. I understand that and be able to do on your own unless you do not have enough
 That much unless you can not cope with unexpected situations, and the best overclocking, you will not be able to do

Fourth, greedy discard.
 Do not worry about how others and to some extent over-overs Whatever Overs while some symptoms appear woke overs' as much as the others even more than was there, and the go ahead and then you brought your own risk. Rather, lowering its immediate meomchusigo symptoms occurs while overclocking or over-overs Cause nothing compare to give up.

Let's start now.

1 Possible reasons for overclocking.
Why overclocking is possible? Those of you who have puzzled he'll be gone. For example, the reason I'll explain.

- Is going to make a water pump that can pump 100 liters per hour at a water pump company. So the line was designed to process. Way to create a line of pumping 100 liters per hour, to be fair, actually able to pump 100 liters more than anything coming out that is not coming to just 100 liters, 100 liters, up by Ran out deorapnida. Because I can only God, not him exactly always a little machine is not able to take the machine. Anyway 100 l some other things which are not all defective condition does not fit the resin, the company eventually went bankrupt reminds cookies.
 Process line, 130 liters water meter company in this case as a mirror design. Did, the best performance that falls is 100 liters or more cookies. That made water pumps 100 liters per hour through the settings so that it can pump settings, and then was released. Bankrupt me, of course, had no reason to.

Hardware is the same. If you are creating a process line 100 to the CPU that the 100's ability to produce poor grows too large, all right. So I made the process more than 100 lines, and then set the output performance of 100're exporting. Okay, so overclocking is possible.

 For this reason, in recent years, but because of overclocking hardware add-ons so because it has been regarded to be in hardware manufacturer intentionally overclocked to production.

2 Overclock What is?
 CPU, the internal clock and the external clock is internal clock's internal clock to perform the operation. Overclock Iran will give up the internal clock. However, the internal clock is represented by a multiple of the external clock, multiply relationship and can not stop eating them little raeya stop eating them little external clock overclocking the RAM and the motherboard's North Bridge and close relationship because not so simple unintentionally. Well first would find out from the concept of internal and external clock.

** External Clock - FSB often overs when a couple gives. Often expressed, is not an accurate representation. Also equate to an external clock the FSB and does not use the exact term. FSB only an external clock is represented by a quad-pumped bus speed because Anyway to reduce the confusion of terminology I often CPU-sseusineun Z is shown in the program as English La stroke unified word Bus Speed ​​annoying, but I will. Lets go on to the point -

CPU clock (internal clock) Bus Speed ​​X Drainage (Multiplier) is expressed as For example, Bus speed 200Mhz 200Mhz X 10 = 10 multiples of CPU speed of 2000Mhz = 2.0Ghz have doeneungeojyo. Calculated that way, dwaeseo when Pentium 4 3.0Ghz, 3.0Ghz will come. I want to show you my own overclocked CPU Conroe E4300 is this guy, Bus speed 200 9 are multiples of the speed of 1.8Ghz. As I mentioned above, lowering the drain out of the way because the internal clock overclocking reply meurosseo Bus speed will raise.

 FSB (Front Side Bus) speed to transfer data to an external. Precisely from the CPU L2 cache Northbridge is. Technology by the FSB is quad-pumped four times that of the external clock. Bus speed of 200Mhz with a 800Mhz CPU's FSB at hand. Bus speed up overclocking to give FSB also deongdalahseo when will go up.

** Too much bandwidth and FSB used to confuse the other will also. FSB 800Mhz CPU up to 6400MB / s bandwidth. So PC6400 RAM with synchronous doeneungeojyo. This drill and is described in more detail in Part 2, but these different units from FSB and bandwidth.

Intel CPU overclocking

CPU overclock What is it?
Specified in the vendor's existing CPU clock than to be forced to operate at a higher clock speed.
Actually overclocked Intel or AMD officially recommended not.
The speed of the CPU FSB x drainage means the clock, the clock speed of operation.
Rise of higher CPU clock speed. Overclock to increase the clock by modifying the FSB and drainage portion of the overall purpose. In contrast, the under-clock.

Exists in parts of RAM, graphics card, etc. In addition to CPU overclocking.

Overclock caveat?
First overclocking shorten the life of the parts that should be very careful.
Never at any time is not a safe way to overclock manggajyeodo responsibility to him is that.
Of compatibility with each parts are also important. Attention, especially the first time that the overclockers hope.

Good for CPU overclocking the CPU?
Of models such as the CPU time of shipment remains with the same clock, such as Cache actually completely the same, and can not be used to actually Production Year, year of production shares (WeeK), and the yield of the code, depending on the degree of well-overs CPU varies greatly.
Code written yireongeot parking code.
A Q828A ... 28 weeks if the product code. Such as parking, such as yield, there is no guarantee.

Way of overclocking Intel CPU
Learn basic words ..
The clock FSB = front side bus.
MultiPlier = drainage
CPU Voltage = coulometry requires a little more CPU when overclocked. This section would require modifications.

Motherboard manufacturer for each different menu.
Sense seeking the care of a menu that allows you to overclock CPU is required.
Sometimes overclocking menu if you do not have to be careful because there is no will.

One of Intel's low-power system, C1E, EIST disable the function is needed.
Let's find out this release from the motherboard's CPU Configuration. If there is an entry labeled C1E, EIST named
Disable should try to

Touching the CPU portion of it finds then goes to the menu.
Will be part of the first ten thousand jindamyeon not touch lock in Take care of this part of the runners loose.
CPU Frequency, Multiplier, CPU Voltage will be
Of course, this name may differ from the main board.

When you apply the basic principles, simplifying the overclocking.
Multiples of the maximum number of the CPU, basically draining limit manually entered (not necessarily).
Q9550 drainage limit the maximum is 8.5, for example, you put a 8.5 in the drain part.

Suitable place to give the FSB to go then CPU frequency stabilized by the stabilization program. Now doegetda FSB parts do not raise too much at once.

FSB part number of the CPU more voltage rises need to be.
Carefully CPU Voltage portion is gradually promoted.
Sosut part and gradually give up the FSB is the same.

RAM (Random Access Memory) Clock and CPU FSB 1:1 synchronization
The speed of the FSB increases the speed of the RAM should give
This is basic. Typically DDR2 would have been commercially available.
Let's say you write PC-6400. PC-6400's clock is 800Mhz. PC-6400 silkeulreok
400MHZ of 6400/8/2 will work. Silkeulreok At this time, the maximum of the value of the FSB is the same. Ram silkeulreok and At this time, the state portion of RAM and CPU clock is 1:1.

FSB require a higher number if the action a little higher, Ram haejwoyaman.
Case RAM clocks if you are using the over-the

If you want to modify the timing of the ram, usually typically the case of DDR2 5-5-5-15 writes.
If this number is smaller than their RAM (screwed in) there is no need to touch.
4 or more constriction is much recommended because it affects memory yield and do not want.

Overclock (overclock)?

Simply means to raise the performance of the CPU overclocked says.
Additional CPU performance is not only increases the bus speed between the CPU and RAM will improve performance.

Overclockable CPU manufacturing process.

Intel 6XX CPU with a clock here 3.0G example.
Created to manufacture core 3.0G 3.4G up to grab a goal, rather than do manufacturing.

However, the things that work in work in work but do not want to caught goal 3.4G, 3.2G, 3.0G will throw arise.

Easy to do if you think of poor quality.

Manufacturing a product that works well as CPU clock to create
In other words, the original core itself is in the process of preparing 3.4G is lost. Lowering.

6XX series, 3G, 3.2G than 640 630 overclocked high probability of success.

, But this performance, as well as lowering the factory with more bad ones FSB clock, which Intel "Celeron" Name of the product is selling.
Exceedingly high overhead being the case, the Celeron overclocking success if the CPU.

FSB * CPU's Clock is determined by the drainage.
Multiples up in the past, but now placing a lock on the manufacturer, so if you would like to raise the FSB to overclock.

FSB 200 Pentium 4 630 bus speed of 800.
Twice, there is four times the bus speed of the FSB, DDR RAM I plus dual set twice by four times.

Success in overclocking FSB hover Increasing bus speed is also increased, I would like the CPU, RAM, Motherboard things depended can.

Performance, compared to the 3.0G overclock did not come back and be overclocked to 2.8G to 3.0G higher. Reason I raise the FSB to increase the FSB bus speed is 860 because

Success / failure, the presence of overclocking your own judgment.
Overclocking success!] And float on the monitor, because

Many programs, determining the existence of the overclocking success, but if you, like me, etc. If the room through the use of error or download is deemed to have failed.

Many horses it comes to overclocking.
Overclocking the CPU taste goes, is discarded. And so on.
But, please, do not be afraid.
CPU taste do not go because even when overclocking failed to prevent the worst case, the motherboard running.

If you fail to clear the CMOS via reinstated it.

People 1-2 years in South Korea, the computer is recognized as a sphere.
Falls into the world of overclocking once in this reality, little performance to raise money without incurring those wishing goenchan You'll be
+

Web Hosting Selection Criteria

First, the technology is "operating company," and "representative"?
To specify a service principal and the director is a very natural thing for business.
, But some of the concepts are not carriers, or individuals as a hobby that case, operation is difficult to find this information.
Distinctly online business is web hosting service. Would not service if their representatives why people proudly display?

Secondly, 'obligations' prescribed hosting services for countries in need to keep?
Hosting and e-commerce services, which receive a license issued three Communications Act is mandatory.
  Business registration number, mail-order report number, and value-added telecommunications business numbers

If it is not, fill out the registration number, three of the company to focus on basics, I can not help it, Will?

Third, listen to customer complaints immediately and customer complaints so that you know the answer to "Q & A" Are exposed Wall?
Earlier story bar, but the most important thing you can
Wall boxes Writer to see an open Q & A bulletin board that was recently, some vendors even have to change the 1:1 Q case prefix used.
Why did so?
The reason for this is simple. Complaints on external inform silgi It'sjustsometimes.
The quality of customer service is excellent if, Q & A board will be open to the public.

Fourth, the user interface of the site is it superior?
Is not just to design yippeunga.
Stability in service when the users came across the site, to be able to feel the responsibility of the company hosting service.
Service receives a request for the bulletin board in the drab design company, company service bulletin one duffle How could he believe?

Fifth, the price level is appropriate?
Is presented to determine the price, which, according to the circumstances of the customer's personal problems.
, But, visitors to the Web site operated both within and outside the site very much, unless one traffic 5G is resolved.
Is to be considered for a more stable operation of the site alone server 'hosting' because
Then 5G inside and outside of the service in order to receive proper how much does it cost?
I think, in my opinion, up to one year, should not cost more than 20 million.

Sixth, backup service and support?
Careless users from operating the Web site or delete files, or a physical error occurs on the server machine, the data is lost when the presence of a backup device shows a big difference.
That the primary obligation of the backed up one web hosting service company is considered mandatory backup that needs to be done to basic services because of their running gear in case an error occurs,

The order of the mall building

According to the following procedures in order to build pingmol.


1 Candidate items selected

Item selection is very important. Internet business customers are free moving, so it is very competitive. And treated in a comprehensive shopping mall or classic can be prepared when dealing with many items competing sites.

Instead of good viscosity. Offline marketability could be too small for the number of customers due to the limitations of the local online against the nation do would be marketable. These items are items of internet shopping mall


2 Marketability analysis

Do Leaping vaguely items were set. Operators usually fantasize about their items bear is. Confirmed that the items he thought afford to just 'only' candidate here, I do not think you will need.

Feasibility will have their items and try them at a marketability analysis. Marketability analyze how the size of the market, the decline trend in the market is a growing trend in the market, the number of competitors how are their strengths, what are the strengths in this market account how much the proportion of begins to wonder whether you will be able to.


3 Items defined keyword strategy and selection

Strategy marketable item analysis confirmed the next keyword must be chosen. Internet Shopping If you are departing from the information retrieval, and most of the customers enter keywords representing the demand of the customers. Strategy is the selection of keywords to the demand of the customers to select the most appropriate keywords.

Comprehensive strategy selected keywords keyword index to evaluate the simple model, but there is a way to be done.

Strategy, keyword selection methods

1) several of their items for keyword extraction.
2) Naver keywords, each keyword query using the lookup service to determine the monthly hits.
3) Identify each keyword Naver search site on the registered number of sites (competitors).
4) Identify (%) for each keyword of your items and how relevant
5) Keyword index is calculated. Keyword index = Monthly Views / competitor X-related (%)
6), are selected as the keywords from keyword index strategy.


4 Write a business plan

Recommends that, if possible, try to write a business plan for their business. Obtain a sample business plan to fit in there, one note can have an objective view, and go look at their business, the business will be able to move forward systematically.

Write a business plan while substantially Soho shopping mall operating practices, however, is not much. Business carefully and deliberately, by those who want to reduce the probability of failure of any business plan is highly recommended people to endure some degree of trial and error, rather than a complex procedure, and quickly promoted to skip this step you may just need to be.


5 Business registration, domain selection, communication |

Business registration procedure is very simple. After telephone contact with the competent tax office in the office, get the necessary paperwork. Operators simply by visiting the registration is completed. It is one way that the building utilizing the keyword strategy selected carriers were above 3. Glass in the promotion, including search engine registration.

Domain also selected to take advantage of the carrier name as keyword selection strategy. Way. Business name, domain name, site name, they have good rating on search engines if the keywords associated with both strategies will help in the upper register.

| Report from the jurisdiction / watch if you are Was preceded by a license fee of 45.000 won.


6 Mall building - portal site sohomol neighbor, auction sellers, EC hosting registration

There are three main ways to build a shopping mall.

Following Market onket, such as auctions, auction sites (C2C Marketplace) easiest is to register as a seller. Burden of promoting these sites already secured floating population, so that there is a low burden of production site.

The second is to the tenants, a portal site sohomol Also less secure because it is already a lot of floating population, the burden of promoting sohomol. Neighbor fees than the auction site to register a burden, but has the advantage that you can take advantage of the events of the portal site. However, portal sites sohomol newly reorganized or fold depending on the auction Marketplace strong business and so is not recommended to

And the third is that the operational independence mall. At this point, it is time to start shopping malls may be a burden to use the EC hosting to create your own independence mall. The advantage of being able to tell their own brand, but the burden of promoting greater independence mall.

To departure or sohomol auction seller as a departure, if often a good way to operate in parallel with the EC hosting.


7 Payment system

Independence mall to create a payment system separately need to build one, EC hosting, access to the auction site, sohomol if the payment system has already been built, so this process is omitted.


8 Packaging and shipping system

Dissipation market and its packaging (box) in order to be able to handle the customer's purchase, shipping and courier service providers to contract. The size of the post office and the courier services usually less.


9 Product shots and registration

Rough photoshop job and goods taken by a digital camera merchandise goods descriptions and pictures to register on the site. This process is that the customer purchase decision is the final step is very important.


10 Internet marketing search engine registration

The whole of the major search engines such as Naver, Daum, Yahoo, Empas occupies more than 90% of the effect of search engine marketing. Keyword advertising enforcement four of these sites, just register your site is recommended to consider is recommended.


11 Log Analysis

Be a series of marketing activities analysis. Analysis can be evaluated, and the evaluation can be improved. All marketing activities through log analysis can be identified. Aces count loggers service (approximately 10.000).


12 Accounting

Every quarter for the sales and purchase VAT report in May of each year, and a comprehensive income tax return if you are

Parked domains and domain forwarding

Once the application and domain registrar domain registration complete "guide to arrive in the mail. "Domain registration" as if I traded like a nicely designed form is printed on the mail to arrive.

1 Name server (Name Server)
People live, home address and mailbox. The domain name server address is to look for the mailbox, if you think that is. Primary nameserver, secondary nameserver, which will connect to the secondary server if the primary server be shut down is it safe to connect the two nameservers understand.

2 Parking (Parking)
Temporary parking parking service provided by your domain registrar, do not build a web site yet, but Iran "under construction" with a picture of the mall building work in progress is to inform.


2 Forwarding (Fowarding)
That allows you to connect to the Web site that you want to connect to the domain registrar, registered in Forwarding says. Or already lengthy and complex Myspace, blog address and when you want to connect your own domain and other domain registration and a link to this page If you operate a website or shopping mall, when you want this forwarding service.

Forwarding scheme fixed forwarding and flow forwarding approach. Input to a fixed forwarding address bar notation as a domain, and to ensure that the flow notation to be forwarded to the address of the page that are connected to the address bar.

And forwarding the domain you would like to use by selecting the "Domain / supplementary services / forwarding" has multiple domains, mainly by mail then register a domain registrar who makes

Web standard textbook summary

What is the Chapter Web standards.
Agencies and organizations
ECMA
ECMA 262: java script standard specifications
ECMA 357: xml standards-compliant
w3c (http://www.w3c.org)
Draft Working Drafts
Final draft (Working Drafts Last Call)
Recommendation Candldate Recommendations
Candidate Recommendation (Proposed Recommendation)
Recommendations (Recommendations)
Web Standards advantages
Easy to modify and manage content (structured and the visual representation of the unification)
Improvement of Web accessibility (high) provides accessibility to various users
SEO (search engine optimization) alternative (SEO using the document structure clearly)
Server and reduce the file size, storage space saving (burden of server source can be written efficiently, minimize)
Backward compatibility with higher compatibility (old page in the content is displayed appropriately secure phase, backward compatibility and interoperability)

Structured language
html4.0: Strict, Transitional, Frameset DTD of three document type can be used
XHTML 1.0 Strict, Transitional, Frameset DTD of three document type can be used
XHTML 1.1 Strict is available only
Other languages
: formulas technical language mathML frequently used recently using the tag (HTML5) <Canvas>
SVG: 2-dimensional vector graphics technology in the language, because the distance between two points less damage to image conversion image.
RDF / RDFS: language for expressing metadata
Web accessibility (WCAG1.0) (currently 2.0) document be converted, and understand the content operable two themes basic inspection items

Chapter 2 Document Structure - XHTML web pages to start building

HTML, URI, HTTP
TCP / IP as the transport protocol HTTP: documents (two-way, connection-oriented, the one associated with the reliability High) application protocol
HTTP header request a response from the HTML document (HTML document) and how to interpret the HTTP to request a response execution.
URI: = URL (address) + URM (resource name)
(In absolute URI: URI scheme detailing will pass until all general URI)
Relative URI: starting their own files, folders and other file's path (using mainly their own sites to see the folders and files)
XHTML overall appearance and formatting
the tree to the root html element structure
That the content markup tags wrapped in features (<element name> </ element name>)
<Element name attribute name = ""> attribute value when you want to give the properties of the elements in the form of technology
Adequately specify the relationship of parent and child elements
Encoding properties UTF-8 (standard) 8bit of variable multi-byte character representation
ISO-LATIN-1: 8bit to represent Chinese characters
Expressed as one character ASCII: 7bit
Old characters to EUC-KR: (ISO-LATIN-1 + characters) Dong-Kwon expressed
Document type declaration: <DOCUMENT html (document) PUBLIC (reserved word) "- / / W3C / / DTD XHTML 1.0 Strict / / EN" (Certified URI)
Declared as "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd" (system identifier)>
strict backwards compatibility is strict.
transition: upward-compatible prospers
declared in the document when you use a frameset: frame tag
Namespace: <html the xmlns="http://www.w3.org/1999/xhtml"(네임스페이스) xml:lang="ko" lang="ko"(eoneokodeu)>
Metadata properties defined
Mime type and character source code meta tag in the http-equiv = "Content-Type" (mime-type) content = "application / xhtml + xml, charset = UTF-8" (character source code)
Search Robot Control: name attribute to "ROBOTS" designation
content attribute can specify (multiple): ALL (the default, INDEX, FOLLOW the same), "NONE (NOINDEX, NOFOLLOW" the same), INDEX (acquisition targets that page)
FOLLOW (the page + link pages to collect it), NOINDEX (collects excluded from the page), NOFOLLOW links page (including the page collected from the target)
Table
Grouping elements (<thead>, <tbody>, <tfoot>)
<table>
<thead>

<tr>
<td> ... </ td>
....
</ Tr>
</ Thead>
<tbody>
<tr>
<td> ... </ td>
.....
</ Tr>
</ Tbody>
<tfoot>
<tr>
<td> ... </ td>
....
</ Tr>
</ Tfoot>
- >> Increase the size Share with scrollbars, offers and multiple printed pages and a user-friendly interface available makes.
Colspan
<thead>
<tr>
<th id="brs" axis="hwamyeonpyosi" abbr="beurawoojeo"> browser </ th>
<th id="ver" axis="hwamyeonpyosi" abbr="beojeon"> version </ th>
<th id="pct" axis="biyul" abbr="biyul"> ratio </ th>
</ Tr>
</ Thead>
<tbody>
<td headers="brs ver" colspan="2"> Total </ td>
...........................
Headers id value declared in the thead => like the above equation by using two of th tag can be used.
* Tabindex property realism (accesskey attribute miles)
tabindex: tab key is pressed when the focus of the move ordering
accesskey: access key is pressed when the focus of the
Image elements using the alt attribute (attribute name = image description) stating

 Chapter 3 Visual representation - css design freedom
CSS
Which controls the visual representation of the web page.
Parent element (spread) -> sub-element structure: cascading waterfalls
CSS basic rules
[Format] selector {property: value}
 Describes a number of selectors, separated by commas (h1, h2, h3 {color: green})
Technology to lowercase.
Tin = / * comment content * /
In absolute units: showing pt (points, 1/72, ㅊ)
Relative position depending on the screen is converted px (pixels), em (the default property value to 1 0.1 (1/10 times), 2 (twice) technology
Used to specify the URI in the URI: CSS value (@ import.ur (URL))
Inheritance Table (<Table> <tr> <td> </ td> </ tr> </ table>) tr, td tags, <div> <span> </ span> </ div> (span of the parent div ) properties to specify the name of an attribute value in inhreit
CSS how to apply and priority
How to Apply
Individual elements (<p style="margin:15px">)
<style type="text/css"> Specify the style element in the range of <head> p {margin: 15px}
<head> range do not link to an external style sheet references (<link rel="stylesheet" href="./css/default.css"/>)
external style sheet references using the @ import <head> range <style teyp="text/css"> import.url (URL) </ style>
<Meta http = equiv = "Context-Style-Type" content = "text / css"
Priority
Been included in the selectors ID
Virtual keulreseu and class attributes
Elements that are included in the selectors
Possible to define the highest priority! Important
Selectors and virtual classes, virtual elements
Technology selector: selector * If you can specify the style to all the elements
When you fill in the name of an element type selector: select me to fill specifies the elements in style
specify the style class selectors: class people by giving the name of an element. In addition, you can specify the styles to the element that defines the element name without the class name of the corresponding class people.
style by writing a value of id selectors: element # id (id is a unique value). Used to define only one of the elements of style
class, id can be used as the selection character: alphanumeric (a ~ z, A ~ Z) and start to numeric (0 ~ 9), Unicode (ISO 10646), recognized as some of the characters that
Selector combination
How to apply a style to all child elements based on the selector selector (parent): parent element poram
Immediately after the child element of the parent element to apply a style selector selector (parent)>:
How to apply a style selector + selector: childNodes elements with the same parent element tree structure
Selectors, selector: multiple-element to apply a style at once
Will be added to the CSS3 selector
Element [attribute ^ = "attribute value": the name of the corresponding property of the element names, attribute values, and the earlier match elements
Element [attribute name $ = "attribute value"] matches the corresponding attribute name of the element names, attribute values, and later contained elements
Element name attribute name * element = "attribute value": the name of the corresponding property of the element names, attribute values, at least one included N.
Brother elements to target elements of indirect element to element, Name: how to apply a style
Virtual class
Child: first-child: first parent-child elements that first appeared in the parent element: style element only apply
Link to Virtual classes: link control link (never opened to the page of the link to apply),: visited (in the open already lost Azzaro link to apply)
Order => link-visited-hover.
Box Model
Contents, border, padding (distance between the border and contents), margins (borders and other elements away) made
Visual formal model
display properties
none: do not have a visual representation
block: its block box elements mandeum
that element inline: inline box mandeum
inline-block elements, but as a block box itself as a replacement element placed in one of the inline box
position properties
static placement (usually between elements that affect)
relative: relative placement moved from its original position (relatively)
absolute: absolute positioning (no influence among elements)
fixed: fixed placement (+ absolute)
Float
Move the box of the element to float.
clear: float off
display, position, float attribute hierarchical rules
position properties and display properties none ahmyeon ignores the float property
absolute, fixed display the value of the property, if the value of the position attribute block, the float property value none
float property value is none other than the block display property values
accept other value is set display properties
z-index: elements of the overlap due to overlapping sequence specifies the high value (Fast Net)
Textual representation of the direction of
> left) direction: basic text notation direction (ltr: left> right, rtl: right
unicode-bidi
nomal: the direction of Unicode as the default notation
embed: directon property set in one direction
bidi-override: inline, block> </ inline> </ block> unicode notation void set direction
width, height property rules
Unsubstituted inline element width and height attributes can not be applied to increase the line-height attribute (specify)
Determined by the absolute positioning block-level elements including blocks of equations
Width =

The height of the inline box: line-height attribute specifies the
Specify the vertical position of the inline box: vertical-align
Visual Effects
overflow attribute: How to handle the size of the element is outside
outgoing visible: Box cut side of the outer box displays 0
hidden: outgoing box cut box outer display x
scroll: Box outgoing cut scrollbar created using the scrollbar to see the contents.
fluid shows rely on the browser to auto:
clip properties to extract some of the elements:
extracted using the rectangle rect: element-centric (+ element inside the element outer)
to specify the size of auto elements, such as
box elements: visibility attribute not seem seem to specify the layout (visible should look hidden: invisible. yeokyeok x affects)
Fore Color
colorization color attribute: text element
An element that does not contain the text you can refer to the color property, means the value of the color attribute specifies that
Background
color in the background of the element, specify image background-color:
The background of the box generated by the element content, padding, border region
Margin is always transparent
Regulations transparent default value set in the background of the parent element shines
Brightness, text color and background color for each of the RGB values ​​from 0 to 255 in decimal notation, calculated by the formula {(R * 299) + (G * 587) + (B * 114)} / 1000:
Chrominance: 0 to 255 in decimal notation, the characters and background color with the RGB value of each (max (R, R) + {max (G, G)-min (G, G)} + max (B, B)-min calculated by the formula (B, B))
iteration of the background image, background-repeat attribute:
repeat: vertical, horizontal repeat, repeat-x repeat in the horizontal direction, repeat-y in the vertical direction, repeat, no-repeat: repeat x
to specify the background image to move, fixed background-attachment:
scroll: scroll with the background image to move
fixed: Browser Display 00 on a fixed
Specifies the initial position of the background image, background-position:
batch specify of the properties of the background can be
Font
specify a font-family: geulgol family name specifies the name of the representative of the family
Font-family: Arial, Helvetica ........ etc.
Representative family: serif, sans-serif, cursive, fantasy, monospace
font-variant: the font variant attribute
nomal: normal font
small-caps: size of fonts converted to uppercase, lowercase digit occupies the same
font-weight: specify the weight of the font
100-900: The larger the size of bold
nomal 400 as the thickness of
bold: 700 and the same thickness
bolder: Inheritance thickness reflects the maximum
lighter: Inheritance thickness reflects the minimum value
font-stretch: attribute that specifies the self-destruct Post
specify the size of the font-size: font
Accessibility is lowered by some absolute units when specifying the browser, the user can not change the font size by changing the settings
font-size-adjust: adjust the font size
Text
Specifies the width of the indent text-indent: the rows of text that first appeared in
text-align: text spirits
right, left, center, right, left, center-aligns
justify both ends of the alignment, inline text box itself to reduce or increase
text-decoration: specifies the text decorations (underline, the top line, strikethrough)
text-shadow: put text shadow (color, specify the length).
letter-spacing: Specifies the character spacing of text
the words of the text, word-spacing: specifies the interval
text-transform: uppercase and lowercase text conversion
capitalize only the first character of each word is converted to uppercase
uppercase characters converted to uppercase.
lowercase characters converted to lowercase
white-space: elements do not specify how to handle white-space character
prohibits the compressed pre consecutive whitespace characters (as specified spaces show)
compressed into one nomal consecutive whitespace characters
nowrap: successive compressed into one character spaces, line breaks, lack of (A forced line break)
Table
block-level table: Table
inline-table inline-level table
rows in a table-row: tr element generated
table-row-group: a group of rows (tbody) makes
table-header-group: the element header row group (thead) makes
table-footer-group: element footer row group (tfoot) makes
table-column: columns made of the elements (col)
table-column-group elements makes the column group (colgroup)
table-cell: cell makes an element (td, th)
table-caption: elements create a caption (caption)
Orthopedic visual table model
___________________
| Caption element> |
--------------------
|> | Table element box
--------------------
cation-side: specify the location of the caption.
table-layout: specifies how to layout a table-related elements.
specify the model displays a border border-collapse:
separate: separated borders model, the border of the border of the entire table and each cell is removed
combined model table with Border Border callapse: combined
Coupled model when the border conflict
hidden, border-style value is highest priority if
border-style value none border is the lowest priority.
 wide border border-style value if you do not have hidden a priority.
border-stylle Specifies the border-width value to match the value for the cell is a top priority.
border-spacing: cell separation model adjacent to the border of the space
empty-cells: empty cell's border and background separation model specify how to display (show, hide)
Haseo or create any text in the document quotes generated content: before and after pseudo-element combinations generated
List
specifies the list-style-type: list of markers
marker image specify the list-style-image: a list of
list marker location marker box list-style-position: inside of the box the default block box (inside), a basic block of the outer (ouside)
@ Media control rules and
media type
all: All Media screen (pc display), print (print output), aural (audio output), handhold (handset)
@ Import: use an external style sheet references, when
@ Import url ("URL");, @ import "URL"
@ Charset: external style sheet specifies the character code set
External style sheet, the technology in the first
Can not specify multiple external style sheet to one of the
You can not specify style sheet, the style element within a document written
Chapter 4, to decorate a variety of interaction - Web site content
Form installation
Form Iran?
User input, sending the data to the server in the program for the device.
Dynamically generate documentation / processing
The definition of the form
atrion = "URL": data transmission method in a manner corresponding URL
method = "method": the contents of the form to handle the way (basic get)
get data sent through the URL.
sent through the post: Data encapsulation.
properties that are used when the enctype: file transfer
accuser can use an identifier name: form used to
input elements
type attribute
text: a single-line text input field
display the contents concealed, but are limited to alphanumeric password: text element with '*' as
input box with multiple choice checkbox:
adio: single select input box
transmitted through the action to fill the url submit: stored in the form
reset: initialize all of the data in the form
random the buttom button elements in a script or program instructions.
hidden: hidden in the form field does not display the actual data transfer is used.
blood, but not displayed on the screen using hiddne field When transmitting sensitive data to.
textare: multi-line text fields, use an inline element
select elements option elements
Inline elements to create a select option elements using the Select menu.
label elements
Designed to enhance the accessibility for the element tag can not be resolved, but the screen elements to control and, indeed, can be synchronized
Granted explicitly label: label property, fill out the id of the element to the value for the property.
Is implicitly granted Labels: how to include the elements tied to label certain elements.
Multiple labeling is impossible.
fieldset, legend elements
more precise form by the multiple elements within the fieldset: form Groom structured
for grouping things legent: fieldset title
Insert script
Within the client script primarily as a programming language for implementing interactive content in motion processing.
java script as a practical standard scripting language, so far, impossible if you do not use CGI for processing implemented by java script
ECMA script: European electronic calculators ECMA standardized java script is the standard specification.
J script is a scripting language that extends the microsoft readers Saga independently javascript. Browsers other than IE because the stable operation is not guaranteed.
VB script scripting languages: Visual Basic is a subset of browser in addition to IE reliably is not.
Tcl: California University of California at Berkeley, from the GUI or macro scripting language developed in a UNIX environment, the same process in order to develop
Specifying the scripting language
meta element to specify the scripting language you need to (<meta http-equiv="Content-Script-Type" content="text/javascript"/>)
Specify the script specifies the type of the type (of the script MINE), src (specify the external script URI), charset (external script) character code sets
Script when writing <! [CDATA [content JavaScript Department]]> Department General (JavaScript content charactor.) Specifies the
/ / <! [CDATA [
Contents Part
/ /]]>
noscript element script in an environment that is not available when the script is run, you can not replace the element. Will help to improve accessibility.
Event handler
onload event occurs after element has loaded its properties specify
onunload: the property element occurs when you move to a different document
specify the events that occur at the click of a button onclick input device
onmousedown: pressed the mouse cursor to the corresponding element occurs when
occurs when the onmouseup: the corresponding elements in the mouse is pressed, the cursor was floating in the synthe
onmouseover: the corresponding elements in place and when the mouse cursor is occurring
Occurs when the mouse cursor is moved onmousemove: the corresponding elements in the
occurs when the mouse cursor goes out onmouseout: the corresponding elements in the
onfocus: the focus on the elements to be activated if the occurrence
occurs when the onblur: the corresponding element in focus and is becoming inactive
occurs when a specific key is pressed onkeypress: the corresponding elements in the
occurs when onkeydown: specific key is pressed, the corresponding elements in the
occurs when released onkeyup: the corresponding elements in a particular key is pressed.
occurs when the onsubmit: Form contents in the range to be sent to
When you get the form content in the range of initialization occurs onreset:
onselect: the text of the text field, text area, select what happens when an
occurs when the onchange: form the contents of the control has changed and the focus has to be released
Accessibility event handler properties
If you are using a keyboard, mouse movements of the target properties, in order to avoid compromising the accessibility, keyboard, mouse movements, the target property, to specify.
avoid specifying alternative keyboards property because the mouse cursor ondblclick property or properties that rely
Frame insertion
The frame, the ability to insert a document inside another document. () Does not recommend the use of the
Frameset document definition (DTD) that uses frames. (XHTML document type declaration can not be used)
When using the iframe element is used to specify the title in the title.
Insert other documents in addition to the iframe element object elements, it is possible to implement.
object inserted
Object element (an inline element.)
Image: img element
<object data="/images/mg.gif" tyle="image/gif" title="yimiji"> content unit </ object>
Other documents: iframe
object elements by layering elements to the child object elements of a child element (object) just sent.
The hierarchical order of the first object can be specified.
A specific browser or a browser that does not correspond to the data type can not be replaced.
<object data="/movie/overview.mpg" type="video/mpeg" title="bidiohohbeujekteu">
<object data="/image/overview.gif" type="image/gif" title="yimijiohbeujekteu">
Part ..
</ Object>
</ Object>

 Smooth transition into Chapter 5 redesign web standards
XHTML1.0 and XHTML1.1 difference
Document type declaration and the difference
Available three formats: Strict, Transitional, Frameset XHTML 1.0: html4.01 like
XHTML 1.1: Strict corresponding to the only available format
how to specify the language code of the html element
XHTML 1.0: lang attribute, xml: lang attribute threatening language code
XHTML 1.1: xml: lang attribute only specifies the
the difference of how to specify the name attribute and the id attribute
XHTML 1.0: name attribute and the id attribute specifies the identifier of the flag Treatment
XHTML 1.1: the abolition of the name attribute to specify only the id attribute is
in html, xhtml conversion
XML declaration
XHTML is the XML declaration at the start of the document: <? Xml version = "1.0" encoding = "euc-kr"?>
version of the xml version, the encoding of the character code sets
XML namespace, language code
XHTML 1.0
<html xmlns=http://www.w3.org/1999/xhtml xml:lang="ko" lang="ko">
XHTML 1.1
<html xmlns=http://www.w3.org/1999/xhtml xml:lang="ko">
MIME type
XHTML <meta http-equiv=""/>
Additional information servers such as HTTP headers, or specify that the output priority
Does not authorize the use XHTML1.1.
script, style elements
script, style elements of '# CDATA' and comments, but the contents of the XHTML '# PCDATA' is changed to the technology, we need you to do, there is now a need to
/ / <! [CDATA [
Contents Part
/ /]]>
 Elements and attributes must be written in lowercase
 Defined as lowercase in XHTML is case-sensitive and also elements and attributes to lowercase is defined because
Encloses attribute values ​​in quotes
Tasting of empty elements
HTML empty element tags without the need to shut down anat, but not specifically described in (ex <br>) XHTML tag jongpyo shall (ex <br/>)
Tag can not be omitted.
XHTML necessarily omit the start tag and the end tag without technology should be.
Tag is well-formed (well-formed)
Strictly conform to the formatting of the XML by the location of the well-formed: Start and end tags Hin incense g; a
Property can not be outlined (ex) <input type="radio" checked (x)>)
Whitespace characters, spaces, tabs, line feeds, carriage returns four kinds of whitespace characters is considered to be
the name attribute and the id attribute
XHTML1.0 the mix, but the role of the name attribute and the id attribute for each element in the HTML form, the name attribute of the img element is abolished XHTML1.1 a name attribute of map element eliminate AM
Other major differences
Property value of the first whitespace character and the last whitespace character is ignored continuous attribute values ​​within one or two or more whitespace characters by a single trailing space handling
can not contain an element a element in a
img, object, big, small, sub, sup, each element in the pre element can not contain
button elements input, select, textarea, label, button, form, fildset, iframe, isindex of each element can not be
label to another label element can not contain elements
can not contain form elements to a form element.
XHTML abolished element substitution
applet element -> object element to replace
basefont elements -> CSS font-size is replaced by the element
center element -> inline element, the parent element in the text block level elements in the text-align property to center to replace the
replaced by dir element -> ul element
font elements -> CSS color, font-size, font-family as an alternative
replaced by the menu elements -> ul element
XHTML abolished property replacement
lang attribute -> xml: lang attribute to the alternative (1.0 1.1, the two properties, using the xml: lang attribute only)

Chapter 6 cross-browser layout - layout techniques Blige web browser does not discriminate
Implementation and compatibility of the browser
CSS basic rules
IE 5/5.5/6, in the child selector '>' '+', adjacent selectors, attribute selectors ignored
IE 5, Opera7 class select uppercase, lowercase, does not distinguish.
IE 5, Opera7 on the ID does not distinguish between the selection of the upper-and lower-case.
Readers of the browser extension (not implemented to comply with Web standards browsers)
Backward compatibility and upward compatibility
Backward compatibility: existing browser made in the past, and their representation of the code without any problems and seems to be working
Top compatibility: In the future, the browser will be created in the future, and their representation of the code without any problems and seems to be working
Transitional upward compatibility
Correct XHTML markup by using
Control using the correct CSS font / text, colors, margins, etc.
Little use to configure the layout table elements
Nested table x, the same effect as the CSS guhyan
Strict upward compatibility
Correct XHTML 1.0 Strict or Transitional markup using
Correct to use CSS for layout
Separation in the visual representation of the structure
Emphasis on the structure, or preferably not used as a technique for the visual representation of the markup does not use.
Representation and document format conversion
Browser gachun two kinds of representation
Standard way (Standards): Web standards compliant representation
Backward compatibility compatible way (quirks): representation of the way first
Browser equipped with three kinds of representation
Standard way (Standards): Web standards compliant representation
Pretty much the standard way (almost standards): maintaining backward compatibility table or center aligned in the expression of some Web standards compliant by default, but the expression representation.
Backward compatibility compatible way (quirks): representation of the way first
CSS Nuclear
Non-standard, but how to apply through the nucleus, except for some of the browsers by CSS
Star nucleus paste the html selector in front of IE4-6 style, and does not apply to other browsers
Underscores nuclear properties most at the beginning of the underscore (_) is prefixed with Style is being applied in other browsers IE 4-6 etc. Not applicable
Creating an external style sheet
Browser paste '*' in front of the selectors to specify the initial style initialization (* {attribute changes})
The order in which you specify the properties
Properties on the visualization representations or location
Margin or padding, lines, etc. on the box model properties
On the background and color properties
On the font and text properties
Generated content on the properties .... net.
Layout techniques
Document body
Center-aligned
Block elements: the left and right margins to auto value
Specify a value for the center inline elements: text-align elements
Image replacement technique
search using img elements is not possible, in terms of maintenance and are less efficient than the text (preferably avoid the use of the image elements.)
display using image replacement technique
ex) <div>
<p> 1 / </ p>
</ Div>
.... P element image div in dealing By withholding the CSS applies the coated image div is expressed Otherwise, the p element is expressed.
text-indent property
logo representation of the area using the text-indent property to set up a link (specify elements in a block, in order to reduce the margin equal to the width and length of the logo without text properties, border margins, and padding properties to zero, represented by a neat link logo can make.)
Multistage layout
configuration layout using float
Way to deploy a layout using float after another to block elements
ex) center aligned layout deployment
body {
text-align: center;
}
div # header {
width: 400px;
margin-right: auto;
margin-left: auto;
}
div # footer {
clear: both ;/ / space float you do not need to be attached to the sides because goes down.
width: 400px;
margin-right: auto;
margin-left: auto;
}
div # conteiner {
width: 400px;
margin-right: auto;
margin-left: auto;
}
div # content {
width: 400px;
float: right
}
div # sidebar {
width: 120px;
float: left;
}
Layout deployed by positioning
Absolute and relative positioning combination
Implemented by positioning elements relative position to the absolute position of the elements of one of the boxes, and then paste quality
Absolute position and float combination
Position to the absolute position of the elements of one of the boxes, and then paste quality elements using the float property to the desired position (Left, Right) implementation
Combination of margin and absolute position
Position to the absolute position of the elements of one of the boxes, and then paste quality element is placed by using the left and right margin properties.
fixed: the use of non-standard, so not recommended

Chapter 7, designed for a wide variety of users
Accessibility
Reason to keep the accessibility
Web users in all areas of society rapidly increased depending on the variety of users