Dell GX240 manual See IC

w w w . d e l l . c o m s u p p o r t . d e l l . c o m

there, the microprocessor retrieves it from the much-faster cache memory. Drive caching and RAM caching significantly improve the overall speed of the computer. See also L1 Cache and L2 Cache.

CD

Compact disc. An optical form of storage media, typically used for audio and application programs.

CD-R

CD recordable. A recordable version of a CD. Data can be recorded only once onto a CD-R. Once recorded, the data cannot be erased or written over.

CD-RW

CD rewritable. A rewritable version of a CD. Data can be written to a CD- RW, then erased and written over (rewritten).

Chip

See IC.

CIM

Common Information Model. CIM allows remote management application programs to access system management information on a client computer running any Microsoft Windows® OS that includes the WBEM core components.

Clock Speed

The speed, given in MHz, that indicates how fast computer components operate that are connected to the system bus. The speed is generated by a quartz crystal on the system board that acts as a kind of metronome. Components that are synchronized with the clock speed can run faster or slower, but their speed is determined by multiplying or dividing a factor by the clock speed.

cm

Centimeter(s). A measurement of length equal to 0.39 inch.

CMOS

Complementary metal-oxide semiconductor. Memory chips that are often used for NVRAM storage.

COA

Certificate of Authenticity. The Microsoft Windows COA is a 25-digit alpha- numeric code located on a sticker on your computer. You need the COA to

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