Juniper Systems Allegro DOS Manual - Manual (Page 195)

MS-DOS Page 5-35
Startup Files
AUTOEXEC.BAT and CONFIG.SYS startup files containing default
configuration information are factory installed on the C: drive of the
Allegro. Each time you turn on or reboot into DOS on the Allegro, DOS
searches for these files and carries out their commands.
(Note: If the Allegro is booted from the A: drive, the CONFIG.SYS and
AUTOEXEC.BAT files on C: are not executed.)
❖ Important Note: It is important that the existing CONFIG.SYS and
AUTOEXEC.BAT files located on the Allegro's C: drive are not replaced. If
you need to change these files for your application, carefully follow the
directions given in the Startup File section.
CONFIG.SYS File
The CONFIG.SYS file is a text file that contains special commands that
configure the Allegro’s hardware components. DOS starts, it carries out
the commands in the CONFIG.SYS file. The CONFIG.SYS file is located
in the root directory of drive C:.
The following commands can be used only in the CONFIG.SYS file:
Buffers Files
Country Install
Device Lastdrive
Devicehigh Numlock
Dos Shell
Drivparm Stacks
Fcbs Switches
The following commands are commonly used in the CONFIG.SYS file
and can also be typed at the command prompt:
Break
Rem
Set