Epson Equity 286 PLUS - Manual (Page 243)

Configuration
The particular setup of a group of components. A typical system
configuration consists of a computer with one diskette drive and
one hard disk drive connected to a monitor and a printer.
Control code
A command (generated when you hold down Ctrl and press
another key on the keyboard) that instructs the computer to
perform a specific function.
Coprocessor
An optional device that enables the computer to process certain
mathematical calculations faster.
Copy-protected program
A type of program that cannot be copied. Some copy-protected
programs require you to leave the program diskette in the drive
while you are using it. Some also require the computer to be
running at low speed (6 MHz) instead of high speed (12 MHz).
See also Automatic speed.
CPU
Central Processing Unit. The primary unit of the computer that
interprets instructions, performs the tasks you indicate, keeps
track of stored data, and controls all input and output
operations.
Cursor
The highlighted marker that shows your position on the screen.
Cylinders
The vertical alignment of tracks in a hard disk that can be lined
up under one read/write head. The number of tracks on a disk is
equal to the number of cylinders times the number of heads.
4 Glossary