Tandy 1000 MS-DOS Reference Manual page 363

Appendix C / Installable Device Drivers
If you have three DOS2 partitions on Drive C and one on Drive
D, you can use:
device=mlpart.sys c: c: d: c:
MLPART assigns each DOS2 partition a logical drive letter, and
tells you the letters. In doing this, it adheres to the order in
which you created the DOS2 partitions. Therefore, in the pre-
vious example, if no other block devices exist, the DOS2 logical
drives are E, F, and H on Drive C and G on Drive D.
Install the device driver only once. After you do so, use MLFOR-
MAT to format the partitions according to their logical drive
letters.
J '
SPOOLER.SYS
(For Buffering Data to the Printer)
SPOOLERSYS is a loadable driver that buffers data to the
printer by temporarily placing the data in memory. SPOOLER
spools
the data to the printer whenever the printer is available.
In this way, you can continue to use your computer to process
data while printing other data.
To install the printer buffer driver, include a DEVICE command
in your CONFIG.SYS file, using this format:
DEVICE = SPOOLER
[lprinter] [size]
where:
...-,
J:
/printer
is the number of the printer you want to use (lor 2). If
you omit the number, the system assumes you want to use
Printer 1. Notice that you must precede the number with a slash
(I).
You can install two spoolers if you have two printers
connected.
size
is the size of the buffer in kilobytes. If you omit
size,
the
system uses 20K.
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