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Asynchronous
A method of data transmission in which one machine sends
data, one character at a time, to another machine at variable
intervals that do not need to be synchronized to a timing
device, such as a system clock.
AUTOEXEC.BAT file
The batch file your computer runs automatically whenever you
load MS-DOS. It configures the installed system devices and
sets various user preferences. See also Batch file.
Automatic speed
The processor speed setting that allows the computer to switch
automatically from high speed to low speed when it accesses a
diskette drive. See also
Copy-protected program
and Key
disk.
Backup
An extra copy of a program, data file, or disk, that is created in
case your working copy is damaged or lost.
Base memory
See Conventional memo y.
Batch file
A type of file that executes a series of commands automatically.
Batch files are text files with the filename extension .BAT. When
you type the filename, your operating system executes all the
commands in that file sequentially.
2 Glossary