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Comment by brewmarche

13 hours ago

I thought MS-DOS had special handling for A: and B: since it allowed you to copy from A: to B: even with just one floppy drive.

3 comments

brewmarche

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dspillett  13 hours ago

Yes, it did, or something did (maybe the individual commands rather than it being through the OS). I'd completely forgotten about that…

  • jasomill  12 hours ago

    Both of these things are true: commands like diskcopy have special handling to allow the same drive to be used as both source and destination, and the DOS I/O has special handling to request disk changes from A: to B: on single-drive systems for programs that lack specific support.