User`s guide

Complementary Metal-Oxide Semiconductor. A type of
low-power silicon chip used for RAM and switching
applications that is backed up by a battery.
Configuration
The particular setup of your computer’s internal and external
components. A typical configuration consists of a computer
with a certain amount of memory, one diskette drive, and one
hard disk drive connected to a monitor, printer, and keyboard.
Conventional memory
The memory in the computer below 1MB that is available to
MS-DOS and application programs-usually 640KB. Also
called base memory or main memory.
Coprocessor
See Math coprocessor.
Copy-protected program
A program containing a software “lock” that prevents it from
being copied. Some of these programs require you to leave the
program diskette in the drive while you use it. See also Key disk.
CPU
Central Processing Unit. The primary computer device that
interprets instructions, performs the tasks you indicate, keeps
track of stored data, and controls all input and output
operations. See also Microprocessor.
Glossary 3