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Basic Internet Technical Details The Internet utilizes a set of networking protocols called TCP/IP. The applications protocols that can be used with TCP/IP are described in a set of Internet Engineering Task Force (IETF) RFCs (Request For Comment). These documents describe the "standard" protocols and applications that have been developed to support these protocols. Protocols provide a standard method for passing messages. They define the message formats and how to handle error conditions. Protocols are independent of vendor network hardware, this allows communication between various networks with different hardware as long as they communicate (understand) the same protocol. The following diagram provides a conceptual layering diagram of the protocols. TCP/IP : Transmission Control Protocol/Internet Protocol TCP/IP is used to facilitate communication within a network of diverse hardware technology. Information is broken into packets (usually in the range of 1-1500 characters

When you start your computer, you may receive the following error message: There is no disk in the drive. Please insert a disk into drive \Device\harddisk\Dr1 When you try to print a Microsoft Word document, you may also receive the following error message: CiceroUIWndFrame,WINWORD.EXE\NoDisk\Device\Harddisk1\DR1 CAUSE This issue occurs when all the following conditions are all true: You have a removable drive, such as an Iomega Zip drive, configured as drive letter C. You do not have a removable disk in the removable disk drive. RESOLUTION To resolve the issue, use one of the following methods: Insert a removable disk in the removable drive before you start the computer. Change the drive letter assignment for the removable drive to a letter other than C. To change the drive letter assignments in Windows XP, follow these steps: Log on to the computer as Administrator. Insert a disk in the removable drive. Click Start, right-click My Computer, and then click Manage. Click Disk Managemen

Product summary The good: Swanky design with quiet operation; all games in high-definition; PSP-like, easy-to-use interface; plays Profile 2.0 high-definition Blu-ray movies in addition to upscaling standard DVDs; built-in Wi-Fi; 80GB hard drive; HDMI output with 1080p support; no external power supply; free online gaming service. The bad: Lacks full backward support for PS2 games; only comes with two USB ports; no infrared port means non-Bluetooth universal remotes aren't compatible; no flash card or memory reader; glossy black finish is a fingerprint magnet; online gaming, media, and commerce options not nearly as developed as Xbox Live. The bottom line: Even though PS2 backward compatibility has been dropped from this version, the 80GB PS3 is still a superb Blu-ray player and high-definition game console. Specifications: Product Description: Sony PlayStation 3 - Game console ; Media Type: BD-ROM , CD-ROM , DVD-ROM ; Processor: Cell Broadband Engine ; See full specs Price range:

The way how Intel and AMD are working on their processors is sometimes similar to marching as they both regularly come up with a new idea or a solution that nihilities difference between them. Of course, the difference is sizable nevertheless. So far Intel owns the processing domain while AMD has pulled off in chip architecture design. And only just a short while ago, on the 13th of November 2008 AMD has planed a great switch in production models. For very long time, from the mid 2007 to be more concrete, AMD production facilities were all given to their chip for Barcelona quad-core processor , now there is a new one called Opteron or Shanghai in its code name.Thinking over a Barcelona substitute, AMD developers decided to make the server chip smaller and faster, so they have added a number upgrades to shared L3 cash and SRAM, and have turned from 65 nm size to 45 nm. Such changes have required architecture revision, but everything is well made. Everything is also made to be compatibl

December '08 was the month when VHS tapes have officially gone for ever from Wal-Mart shelves, but luckily, now we have even more toys to play with instead of old-fashioned VHS players. It is now all about Blu-Ray image and sound quality. The latest news show that end users have got a handle on buying Blu-Ray disks because December '08 sales of those are 400 percents (1.5 million pieces) higher than a year ago. So, what do we have here is a new gadget that will help us enjoy every last bit of Blu-Ray quality sound on our PCs. It is a new audio card from Asus called Xonar HDAV1.3 Series that is one of the first audio cards that bring ultimate sound performance to PCs. Well actually we know of course that the first one was Xonar HDAV1.3 and Xonar HDAV1.3 Series is an enhanced version.The result of installing an Asus Xonar HDAV1.3 Series audio card must be very pleasing because what it does is: first – eliminating downsampling. It means that high quality audio tracks will not b

As is turns up, graphic cards have to do a lot more than just support latest DirectX 10 games and playback HD quality content. For instance, it would be great for a modern GPU to meet needs of a businessman who has to do presentations at work on big screens or plausibly uses more than one screen at the same time every day. All these via a laptop , or why not, a small form factor PC . Such a way GPU developers have a little bit different target group to satisfy, and here is what NVIDIA got for them. This is an upcoming NVIDIA Quadro NVS 420 graphic card. It will come out in February for 499 USD as manufacturer suggests.NVIDIA Quadro NVS 420 GPU may be aimed for multi-display functions and to fit some small dimensions, but of course it has enough guts to for almost any PC game out there. In fact, it has 512 MB in it and 11.2 GBps bandwidth speed, so, should be enough for a couple of years. However the main thing still is how it handles a number of widescreen displays. Thanks to NVIDIA

We all know from childhood that red traffic light means stop. If you usually drive safe, you obey the traffic light signals every time. Unfortunately, not everyone obeys them, which constantly leads to accidents. Why does this happen? Maybe they just do not notice the red light. In any case, this behavior is very dangerous on the road. The police tries to frighten drivers with huge penalties, installs cameras that detect violators... However, this problem may need another way to be resolved. What about... virtual wall that is synchronized with traffic lights?This interesting concept shows us how the problem of dishonorable drivers can be dealt with. The main parts of this system are two laser-equipped stands that stand just in front of each other at the different sides of the road. When the traffic lights turn red, lasers will display the wall that virtually stays in the way of drivers. This wall will show moving image of pedestrians walking across the road and will be clearly seen eve