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CLI [Command Line Interface]
Command line, Command Line Prompt, Command Prompt, DOS promptThe command line provides a...
Cable modem
A device for transmiting and receiving digital information among computers. This communication...
Cavity virus
Cluster viruses modify the directory table entries so the virus starts before any other program....
CD-ROM Drive
Is a drive that has the ability to read Compact Disk - Read Only Memory media.
Central Processing Unit
The Central Processing Unit (CPU), also known as CPU, is the main processing chip of a computer....
Checksum
A checksum is an identifying number calculated from file characteristics. The slightest change in...
Clean
adj. A computer, file, or disk that is free of viruses is considered clean. v. To clean is to...
Client
A Client refers to a machine that is connecting remotely to another computer that is acting as a...
Clock Speed
Computers take a certain amount of time to do one cycle of processing.  This speed is called...
Cluster virus
Cluster viruses modify the directory table entries so the virus starts before any other program....
Codec
Short for compressor/decompressor, a codec is any technology for compressing and decompressing...
Cold boot
To cold boot is to start the computer by cycling the power. A cold boot using a rescue disk (a...
COM file
A COM file is a type of executable file limited to 64 kb. These simple files are often used for...
CompactDisc ReWriteable
CompactDisc ReWriteable is a compact disk that can be written to more than once.  They...
CompactDisk-Read Only Memeory
CompactDisk-Read Only Memeory are the Compact Disk media that most people are familiar...
CompactDisk-Recordable
CompactDisk-Recordable is a compact disk that can only be written to once.
Companion virus
Companion viruses use a feature of DOS that allows software programs with the same name, but with...
Compile
The act of taking a source code file, which is a file that contains a list of instructions to...
Compiler
A program that compiles source code into an executable program Common compilers are Java, C,...
Computer
A Computer is not a particular device but rather the sum of all its parts.  A computer is...
Computer Case
A Computer Case is the outer shell of a computer.  This case is what the motherboard, hard...
Control Unit
The Control Unit (CU) is the circuitry that controls the flow of information through the...
Cookie
Cookies are blocks of text placed in a file on your computer's hard disk. Web sites use cookies...
Core Dump
When a program crashes and the contents of the memory used by that program is saved to a file on...
Cracker
A person who attempts to gain unauthorized access to a computer.  In current times the word...
Crimeware
Crimeware is malicious software such as viruses, Trojan horses, spyware, deceptive scripts, and...
CYA
cya is computer slang for the phrase "See you" as in "see you later".
Cyber criminals
Cyber criminals are hackers, crackers, and other malicious users that use the Internet to commit...
Cyber gangs
Cyber gangs are groups of hackers, crackers, and other cyber criminals that pool their resources...

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