companion virus
A type of computer virus that compromises a feature of DOS that enables software with the same name, but different extensions, to operate with different priorities. For example you may have program.exe on your computer, and the virus may create a file called program.com. When the computer executes program.exe, the virus runs program.com before program.exe is executed. In many cases, the real program will run so users believe that the system is operating normally and aren’t aware that a virus was run on the system.
See The Difference Between a Virus, Worm and Trojan Horse in the Did You Know? section of
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- comparison
(n.) In a biometric security system, the process of measuring a biometric sample with a stored reference template.
- comparison shopping engine
Shopping search engines that compare the prices on searched-for products at various online stores. While most comparison-shopping engines do not offer the merchandise themselves, some may earn commissions when users follow the links in the search results and make a purchase from the online vendor. See “How Affiliate Marketing Works” in the “Did You Know…” […]
- compatible
(n) Indicates that a product can work with or is equivalent to another, better-known product. The term is often used as a shorthand for IBM-compatible PC , a computer that is compatible with an IBM PC. Another term for a compatible is clone. (adj) The ability of one device or program to work with another […]
- compatible cartridge
In inkjet printing, a compatible cartridge refers to an ink cartridge that is not manufactured by the original manufacturer of your printer (called an OEM cartridge), but will function and work in the same way that an OEM cartridge would. Many printer manufacturers will state that using any compatible cartridge in your printer will void […]
- Compiler
)A program that translates source code into object code. The compiler derives its name from the way it works, looking at the entire piece of source code and collecting and reorganizing the instructions. Thus, a compiler differs from an interpreter, which analyzes and executes each line of source code in succession, without looking at the […]