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Navigation Menu |
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C++ |
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Programming language |
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CD-ROM |
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Compact Disk - Read Only Memory |
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CD-RW |
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Compact Disk - Rewritable |
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CHKDSK |
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Check Disk |
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COM1 |
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First serial Port (asynchronous port) |
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CONFIG |
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Configuration |
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CTRL |
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Control |
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CYMK |
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Cyan-Yellow-Magenta-Black |
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Clock |
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The clock is a microchip that regulates the timing and speed of the computer. The microchip includes a crystal that vibrates at a certain frequency when electricity is applied to it, the shortest length of time in which a computer can perform a task is one clock-one vibration of the clock chip. |
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CMOS |
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CMOS or complimentary metal-oxide semiconductor is a term that describes how the CMOS chip is manufactured. The CMOS retains crucial information about the hardware used by the PC, it does this because it is powered by a small battery. |
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CPU |
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CPU or central processing unit is the processor microchip that processes all the information used by the computer. |
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Cache |
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Caches are small, fast memory storage's, which data is copied when it is retrieved from RAM. There are two levels of cache, level 1 which is located on the motherboard separate from the processor and level 2 which is part of the processor, level 2 cache is the fastest. |
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Capacitor |
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A component that stores an electrical charge |
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Cluster |
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Is the smallest unit in which data can be stored on a drive. |
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Circuit board |
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Metallic traces printed on fibreglass panels that carry electrical signals. |
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CRT |
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Cathode ray tube. |
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CD-R |
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CD-R or CD-Recordable, is an optical drive that allows you to write data to it, but once written the data cannot be erased or changed. |
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CCD |
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Charge-Coupled Device, a light sensitive unit that used in scanners, digital cameras etc. |
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CGI |
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Common Gateway Interface |
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Cookie |
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A small files which an Internet server |
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places on your hard disk. |
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DHTML |
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Dynamic HTML |
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DOS |
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Disk Operating System |
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DVD-R |
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Digital Video Disk-Recordable |
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DVD-RAM |
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Digital Versatile Disc-RAM |
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DVD-ROM |
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Digital Versatile Disc-ROM |
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Dialog Box |
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An on screen display that allows the user to select among several choices to determine how a program operates. |
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DRAM |
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Dynamic random access memory. |
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DIMM |
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Dual in-line memory modules. |
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Data transfer rate |
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The number of bytes or megabytes transferred from one device or component to another in a second. |
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Directory |
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Also called a folder, contains a set of related flies. |
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Digital to analogue converter |
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A chip that converts digital values into an analogue wave form. |
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Dot pitch |
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The distance between the nearest two pixels of the same colour. |
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DVD |
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DVD or digital versatile disk, a form of optical storage that has two layers on each side of the disk to store data. |
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Domain |
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A group of computers on a network that are administered as a unit. |
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DSL |
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Digital Subscriber Line. A new modem technology which provides much faster transmission speeds on normal phone lines. |
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DirectX |
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A collection of programs, which enables much better control of the hardware in games and other multimedia programs. DirectX includes DirectDraw, DirectSound, DirectSound3D, DirectPlay, DirectInput, and DirectSetup. |
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DNS |
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Domain Name System |
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Download |
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To copy data (like programs, or applications) from an Internet computer to your own PC, using a modem. |
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DLL |
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Dynamic Link Library is a file containing a collection of small programs.(file name extension) |
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DPMS |
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Display Power Management System. A standard for screen energy saving. The screen "shuts off" after a specified period of time. |
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DMA |
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Direct Memory Access |
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