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  3. a friend of mine sent me these photos of an IBM MT/ST tape (magnetic tape / selectric typewriter).

a friend of mine sent me these photos of an IBM MT/ST tape (magnetic tape / selectric typewriter).

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  • tubetime@mastodon.socialT tubetime@mastodon.social

    a friend of mine sent me these photos of an IBM MT/ST tape (magnetic tape / selectric typewriter). the third photo particularly fascinated me: it shows the flux transitions with a Magnaviewer! is it possible to decode? 🧵

    acsawdey@fosstodon.orgA This user is from outside of this forum
    acsawdey@fosstodon.orgA This user is from outside of this forum
    acsawdey@fosstodon.org
    wrote sidst redigeret af
    #36

    @tubetime So is the MT/ST before or after the "Magcard Composer" which was basically a Selectric that could key in text and store it on what looked like a punch card but was covered with magnetic media. Then you'd put in the expensive mineral-coat paper and play it back to get a nice error-free galley that you could paste up into book form. Low end typesetting in the late 1970's ...

    dukeduke@mastodon.socialD 1 Reply Last reply
    0
    • vathpela@infosec.exchangeV vathpela@infosec.exchange

      @tubetime @mwichary making that a dedicated bit instead of a symbol sure seems weird.

      mwichary@mastodon.onlineM This user is from outside of this forum
      mwichary@mastodon.onlineM This user is from outside of this forum
      mwichary@mastodon.online
      wrote sidst redigeret af
      #37

      @vathpela @tubetime I don’t know what “search” is exactly and Internet Archive is down, but if it’s something like beginning of a new section, I can see the value of a separate hole – it could potentially allow to find sections faster (random access)?

      1 Reply Last reply
      0
      • tubetime@mastodon.socialT tubetime@mastodon.social

        a friend of mine sent me these photos of an IBM MT/ST tape (magnetic tape / selectric typewriter). the third photo particularly fascinated me: it shows the flux transitions with a Magnaviewer! is it possible to decode? 🧵

        somevegancheeseisok@mastodon.socialS This user is from outside of this forum
        somevegancheeseisok@mastodon.socialS This user is from outside of this forum
        somevegancheeseisok@mastodon.social
        wrote sidst redigeret af
        #38

        @tubetime holy shit this is so cool

        1 Reply Last reply
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        • acsawdey@fosstodon.orgA acsawdey@fosstodon.org

          @tubetime So is the MT/ST before or after the "Magcard Composer" which was basically a Selectric that could key in text and store it on what looked like a punch card but was covered with magnetic media. Then you'd put in the expensive mineral-coat paper and play it back to get a nice error-free galley that you could paste up into book form. Low end typesetting in the late 1970's ...

          dukeduke@mastodon.socialD This user is from outside of this forum
          dukeduke@mastodon.socialD This user is from outside of this forum
          dukeduke@mastodon.social
          wrote sidst redigeret af
          #39

          @acsawdey @tubetime I snagged a Magcard Selectric from a govt auction, back in the '80s. The giant magcard unit became a small side table to the desk, while the Selectric became our home typewriter. I loved typing on those beasts.

          1 Reply Last reply
          0
          • tubetime@mastodon.socialT tubetime@mastodon.social

            a friend of mine sent me these photos of an IBM MT/ST tape (magnetic tape / selectric typewriter). the third photo particularly fascinated me: it shows the flux transitions with a Magnaviewer! is it possible to decode? 🧵

            pesco@bsd.networkP This user is from outside of this forum
            pesco@bsd.networkP This user is from outside of this forum
            pesco@bsd.network
            wrote sidst redigeret af
            #40

            @tubetime ​ wie geil ist magnaviewer

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            • tubetime@mastodon.socialT tubetime@mastodon.social

              a friend of mine sent me these photos of an IBM MT/ST tape (magnetic tape / selectric typewriter). the third photo particularly fascinated me: it shows the flux transitions with a Magnaviewer! is it possible to decode? 🧵

              petes_bread_eqn_xls@mastodo.neoliber.alP This user is from outside of this forum
              petes_bread_eqn_xls@mastodo.neoliber.alP This user is from outside of this forum
              petes_bread_eqn_xls@mastodo.neoliber.al
              wrote sidst redigeret af
              #41

              @tubetime fun fact: Len Deighton’s historical fiction book “Bomber” was written on an MT/ST.

              1 Reply Last reply
              0
              • tubetime@mastodon.socialT tubetime@mastodon.social

                i've found what appears to be a code table! it's not really EBCDIC; other documentation refers to the reader having to translate the code.

                ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                ruenahcmohr@infosec.exchange
                wrote sidst redigeret af
                #42

                @tubetime oh I found a set of code tables on a crazy old book I meant to post, this reply is actually just to remind me to POST IT RUE.

                ruenahcmohr@infosec.exchangeR 1 Reply Last reply
                0
                • ruenahcmohr@infosec.exchangeR ruenahcmohr@infosec.exchange

                  @tubetime oh I found a set of code tables on a crazy old book I meant to post, this reply is actually just to remind me to POST IT RUE.

                  ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                  ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                  ruenahcmohr@infosec.exchange
                  wrote sidst redigeret af
                  #43

                  @tubetime oh yea, thanks for the like.

                  tubetime@mastodon.socialT 1 Reply Last reply
                  0
                  • tubetime@mastodon.socialT tubetime@mastodon.social

                    i've found what appears to be a code table! it's not really EBCDIC; other documentation refers to the reader having to translate the code.

                    ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                    ruenahcmohr@infosec.exchangeR This user is from outside of this forum
                    ruenahcmohr@infosec.exchange
                    wrote sidst redigeret af
                    #44

                    @tubetime

                    As intended, old codes from book.

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                    • ruenahcmohr@infosec.exchangeR ruenahcmohr@infosec.exchange

                      @tubetime oh yea, thanks for the like.

                      tubetime@mastodon.socialT This user is from outside of this forum
                      tubetime@mastodon.socialT This user is from outside of this forum
                      tubetime@mastodon.social
                      wrote sidst redigeret af
                      #45

                      @RueNahcMohr like

                      1 Reply Last reply
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                      • jwcph@helvede.netJ jwcph@helvede.net shared this topic
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