Tandy 1000 MS-DOS Reference Manual page 355

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Appendix C
INSTALLABLE DEVICE DRIVERS
Your MS-DOS system can use several device drivers. A device
driver is a program that controls external devices or executes
other programs. The Version 2.11 MS-DOS device drivers are
included on the MS-DOS/BASIC system diskette. Version 2.11
drivers are: ANSI.SYS, KEYCNVRT.SYS, LPDRVR.SYS,
SPOOLERSYS, and VDISKSYS. In Version 3.2 MS-DOS, both
the MS-DOS/BASIC system diskette and the Supplemental Pro-
grams diskette contain device drivers. Version 3.2 drivers are:
ANSI.SYS, DRIVERSYS, KEYCNVRT.SYS, LPDRVRSYS,
MLPART.SYS, SPOOLERSYS, and VDISKSYS.
Device Driver Purpose
ANSI.SYS Provides programmers with many extended
screen and keyboard features, such as the
ability to change graphics functions.
DRIVERSYS Enables your system to support more than
two floppy disk drives and more than two
hard disk drives. Also, DRIVERSYS lets
you assign more than one logical drive let-
ter to a single drive.
KEYCNVRT.SYS Converts certain keyboard characters for
application software compatibility.
LPDRVRSYS Lets you configure your system to take full
advantage of your printer's capabilities.
MLPART.8YS Lets you access multiple MS-DOS partitions
on a hard disk drive.
SPOOLERSYS Lets you continue processing data while
printing.
VDISK.SYS Lets you establish a virtual disk drive in
RAM.
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