beautypg.com

Epson EQUITY 3865X/20 PLUS User Manual

Page 241

background image

Automatic speed

The feature

that

enables the

computer

to switch automatically

from

high speed (20 MHz) to low speed (simulated

8

MHz)

when accessing a diskette drive.

Backup

An extra copy of a program, data file, or disk, that you should

create in the event your working copy is damaged or lost.

Base memory

The memory in the computer below

1MB

that is available to

MS-DOS and application programs-usually 640KB. Also called

conventional memory or main memory.

Batch file

A type of file that lets you execute a series of MS-DOS

commands by typing one command. Batch files are text files

with the filename extension .BAT. In a batch file, each

command is entered on a separate line. When you type the

filename, MS-DOS executes all the commands in that file
sequentially.

B

I

O

S

Basic Input/Output System. Routines in ROM (Read Only

Memory) that handle basic input/output functions of the
operating system. Usually called ROM BIOS.

Bit

A binary digit (0 or 1). The smallest unit of computer storage.
The value of a bit represents the presence

(1)

or absence (0) of

an electric charge.

Boot

To load the operating system into the computer’s memory.

2 Glossary