Epson ExpressStation User Manual page 100

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.
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.
Information such as text or graphics stored or processed by a
computer.
Default
Any value or setting that takes effect when the computer is
turned on or reset. A default value stays in effect unless you
override it temporarily by changing a setting or you reset the
default value itself.
Device driver
A file containing instructions that allow your computer to
recognize and control a device.
Diagnostics
See Power-on diagnostics
DIP switch
Dual Inline Package switch. A small switch on a computer,
option card, or printer that controls a particular function.
4 G l o s s a r y
and
System diagnostics.