Setting up your dos configuration files, Editing the config.sys file – Apple PC Compatibility Card 7-inch card User Manual
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Setting up your DOS configuration files
You may need to modify your DOS CONFIG.SYS file to work efficiently with
your PC Compatibility Card. Follow these guidelines:
Editing the CONFIG.SYS file
Your CONFIG.SYS should include the following statements:
DOS=HIGH,UMB
DEVICE=C:\DOS\HIMEM.SYS /TESTMEM:OFF
DEVICE=C:\DOS\EMM386.EXE NOEMS
The first line loads DOS into high memory.
If you’re using the DOS utility EMM386 and you don’t require expanded
memory, use the EMM386 line shown above. If you are using EMM386 and
you do require expanded memory, include the following line instead:
DEVICE=C:\DOS\EMM386.EXE
For more information on making the best use of memory, see the
information on memory management in the documentation for DOS or for
your memory manager.
Setting the number of drive letters
You can share folders and volumes with the PC by assigning them to PC drive
letters. When you install your PC software, the statement
LASTDRIVE=M
is
included in the CONFIG.SYS file. This allows you to view up to nine folders
or volumes at once.
To specify the number of drive letters, change your CONFIG.SYS file to
include the following statement:
LASTDRIVE=x
where
x is a letter between F and Z. (The PC reserves drive letters A
through E.)
Each drive letter uses 100 bytes of PC memory.
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Chapter 5