Epson 20 - Manual (Page 195)

C P U
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.
Current directory
The directory you are logged onto and working in. Also known
as the
default
directory
Cursor
The highlighted marker that shows your position on the screen.
Cylinders
See Tracks.
Data
Information such as text or graphics stored or processed by a
computer.
Data diskette
A formatted diskette on which you store data files (as opposed to
program files).
Data length
The number of bits per character in serial transmissions.
Default
Values or settings that take 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.
Default directory
The directory where MS-DOS executes your next command,
unless you tell it do otherwise (by including a pathname with the
command). Also known as the
current
or
working
directory.
Default drive
The disk drive from which MS-DOS executes your next
command, unless you tell it to do otherwise (by including a drive
identifier with the command). Also known as the current drive.
4 Glossary