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Article #5056

Re: 7 track tape

#5056
From: ick... Werner Icking
Date: Thu, 04 Oct 1990 08:20
24 lines
1630 bytes
jje@virtech.uucp (Jeremy J. Epstein) writes:

>When I started using the IBM 360 mainframe at the University of
>New Mexico, they still had a 7 track tape drive which was around
>for reading obsolete tapes.
...
>BTW, the 9 track drive had low, medium, and high densities in those
>days: 200 BPI, 556 BPI, and 800 BPI.  1600 and 6250 hadn't even
>been thought of...

By the way, the 7 track tape drives had a translator and a convertor and
sometime you had to try all the four combination of translator ON/OFF and
converter ON/OFF - what ever that was.

At that time the University of Bonn had a 7090 and a 1410 as spooling machine
(and not to forget Mr. Petri as director!). I was responsible for an additional
360 Model 50. But on warm summer days the 360 should be switched off to let
the 7090/1410 run. So I had to write a spooling program running on the 360,
reading cards in BCD and column binary and writing them whit translator ON or
OFF and convertor OFF or ON (or vice versa:-?) to 7-track tape.
-- 
Werner Icking          ick...@gmdzi.gmd.de          (+49 2241) 14-2443
Gesellschaft fuer Mathematik und Datenverarbeitung mbH (GMD)
Schloss Birlinghoven, P.O.Box 1240, D-5205 Sankt Augustin 1, FRGermany
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Message-ID: <3430@gmdzi.gmd.de>
Path: mbox-mo1.pugleaf.net!gmdzi!icking
References: <1990Oct03.172748.18683@virtech.uucp>

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Path: mbox-mo1.pugleaf.net!gmdzi!icking
From: ick...@gmdzi.gmd.de (Werner Icking)
Newsgroups: alt.folklore.computers
Subject: Re: 7 track tape
Message-ID: <3430@gmdzi.gmd.de>
Date: 4 Oct 90 08:20:49 GMT
References: <1990Oct03.172748.18683@virtech.uucp>
Organization: GMD, Sankt Augustin, F. R. Germany
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