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243
Appendix A
_
Instructions for Users with
Single Floppy Disk Drive Systems
n
'
If you have only one floppy disk drive, you can still type ms-dos
commands just as if you had two disk drives on your system.
>*-s
Just think of your one-drive system as having two drives (drive A
and drive B). But instead of A and B representing two physical
drives, they represent disks.
/*-\
Just remember that when you specify drive B, when the drive A
disk was used last, ms-dos prompts you to insert the disk for drive
B. For example:
f)
A>
copy
command.com
b:
Insert
diskette
for
drive
B:
and
strike
any
key
when
ready
/*"-n
1
File(s)
copied
f
]
A
^v
If you specify drive A when the drive B disk was used last, ms-dos
'
asks you to change disks again, this time prompting you to insert
the drive A disk.
>—v
When using a batch file to execute commands, you follow the
{
'
same procedure, ms-dos waits for you to insert the appropriate
disk and press any key before it continues.
Important
The letter displayed in the system prompt represents
the default drive where ms-dos looks to find a file whose name is
/*-n
entered without a drive name; this letter does not represent the
^
last disk used.
Assume, for example, that A is the default drive. If the last com-
mand performed was dir b:, ms-dos would act as if the drive B
disk is still in the drive. The system prompt, however, is still A>,
becauSfe A is still the default drive. If you type the dir command,
ms-dos prompts you for the drive A disk, because it is the default
drive and you did not specify another drive in the dir command.
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