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IBM PC DOS 1.00 / 1.10 Disk Confirm

September 1, 2005 at 03:49:39
Specs: 1.x0, N/A

See below for other questions/comments!

NOTE: If you've got old DOS diskettes lying around or are a collector, PLEASE make sure they are write protected and you have a clean 5.25" drive that won't harm them! Read about them before ever attempting to access them. IBM PC DOS 1.x0 disks require special utilities under much later DOS versions to access them!

I'd like to get as many confirmations as possible that the following MD5 values are the only possible correct ones for these original IBM Personal Computer DOS diskettes:

IBM® Personal Computer(tm) DOS 1.00 Image File MD5 sum:
73c919cecadf002a7124b7e8bfe3b5ba
[ Product Number: 6172212 ]

IBM® Personal Computer(tm) DOS 1.10 Image File MD5 sum:
47bfb4371d28cd9e45fb1197f2a70c00
[ Product Number: 6936669 ]

========================================================
IBM® Personal Computer(tm) DOS 1.10 International Version (Any Language?)
DISK1 -- Image File MD5 sum:
ef2a588927ed34d25a7cb9a8bb659261
[This was the diskette released in Germany/Deutschland under Product Number:
6936913
Product Number is likely different in France, Spain, etc.]

IBM® Personal Computer(tm) DOS 1.10 International Version (Any Language?)
DISK2 -- Image File MD5 sum:
3e9e4a75f47101397fac9e2d87526b62
[This was the diskette released in Germany/Deutschland under Product Number:
6936915
Product Number is likely different in France, Spain, etc.]
=========================================================

I will be releasing a Forensic Examination of the IBM PC DOS 1.00 diskette soon and would like to add this data to the pages along with
a total number of "confirmations".

If you have any other relevant information, feel free to post that! ;-) .

FOR EXAMPLE: DOES ANYONE HAVE A "SCAN" of the New York Times page that 'supposedly' (I haven't been able to confirm it!) announced a 'bug' in the IBM PC DOS 1.00 version of BASIC? It was on April 5, 1982, and supposed to be on the front page! It revealed that IBM®'s BASIC program was returning an error when users tried to divide 0.1 by 10. I've seen this only on one other page on the Internet and I'm awaiting a reply back from its author (Donald A. Thomas, Jr.).

You can find some of my research here:
http://thestarman.pcministry.com/DOS/ibm100/
http://thestarman.pcministry.com/DOS/ibm110/

Viel Dank, Thank you.
The Starman.

PS: Because of the data I found on these diskettes, I'm basically 99.999% sure that all original diskettes were made from the same master, but would be nice to get confirmations anyway.


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#1
September 1, 2005 at 08:21:11

This is interesting because why?

There are bugs in all releases of DOS, naturally v1.0 was no exception (far from it)

Computers in the future may have only 1,000 vacuum tubes and perhaps only weigh 1 1/2 tons.


- Popular Mechanics, 1949


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#2
September 1, 2005 at 17:53:57

jboy: If you mean the announcement of a 'bug' I asked about at the end, that would be only because it was on the FRONT PAGE (if true) of the NY Times.

The other facts about IBM PC DOS 1.00/1.10 are interesting for historical reasons and perhaps to collectors, and my Forensic Exam page might be of interest to those in that field, but obviously none of this would interest someone who cares only about using the latest DOS to do their present PC work.

The Starman.


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