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hpr3470 :: External Commands and Emergency Boot Disk

More on DOS. This time it is External Commands and Emergency Boot Disk

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Hosted by Ahuka on 2021-11-19 is flagged as Clean and is released under a CC-BY-SA license.
DOS, early PC computing, External Commands, Emergency Boot Disk. 2.
The show is available on the Internet Archive at:

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Duration: 00:16:48


DOS is a general acronym for "Disk Operating System", though it came to refer to the operating system used in the IBM PC, particularly Microsoft's MS-DOS.

In our continuing exploration of DOS we come to the topics of External Commands and Emergency Boot Disks. We cover them together because External Commands may not be available on your Emergency Boot Disk unless you take steps to include them, unlike Internal Commands, which are always part of a Boot Disk.


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Comment #1 posted on 2021-11-19 16:50:45 by Trey

Oh what happy memories

Thank you for bringing back memories from early in my computer career. I still have a MSDOS 3.31 Emergency boot disk (Because it was the first to support hard drive partitions above 33MB). For the longest time, I kept it in the very front of my floppy disk case. But when I finally tossed all the old PC floppies, I relocated it to the esteemed location of stuck to the refrigerator door with a magnet.

Likely won't boot anymore, but still brings back memories.

Keep up the good work!

Comment #2 posted on 2021-11-19 22:12:52 by Kevin O'Brien

You are most welcome

I'm glad you enjoyed it. There are more in the pipeline, but once they are done there won't be any more in this series. I wrote these 20-something years ago, and I still get happy users who find them on my Web site.

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