Expensive Tape Recorder is a digital audio program written by David Gross while a student at the Massachusetts Institute of Technology. Gross developed the idea with Alan Kotok, a fellow member of the Tech Model Railroad Club. The recorder and playback system ran in the late 1950s or early 1960s on MIT's TX-0 computer on loan from Lincoln Laboratory.

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  • 1959-01-01 00:00:00 (xsd:date)
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  • 1959-01-01 00:00:00 (xsd:date)
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  • Expensive Tape Recorder is a digital audio program written by David Gross while a student at the Massachusetts Institute of Technology. Gross developed the idea with Alan Kotok, a fellow member of the Tech Model Railroad Club. The recorder and playback system ran in the late 1950s or early 1960s on MIT's TX-0 computer on loan from Lincoln Laboratory.
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  • David Gross with Alan Kotok
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  • Expensive Tape Recorder
  • Hackers: Heroes of the Computer Revolution by Steven Levy
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  • 729 (xsd:integer)
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  • Alan Kotok brought an old mono FM receiver into the computer room and David Gross worked on creating a system that would take input through the A/D converter and record onto the mag tape as one long continuous record. Playback was done from the mag tape through the D/A converter for the Y-axis of the CRT (attached to the accumulator), through an oscilloscope and then to the 9-bit audio amplifier. David tells that the program had to load data in the accumulator using an XOR because anything else would clear the accumulator momentarily and produce an audible whistle. They were able to increment the X axis to produce a live display on the CRT during playback.
  • Tixo.org
  • retrieved June 2006.
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  • circa 1959-1962
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  • Expensive Tape Recorder is a digital audio program written by David Gross while a student at the Massachusetts Institute of Technology. Gross developed the idea with Alan Kotok, a fellow member of the Tech Model Railroad Club. The recorder and playback system ran in the late 1950s or early 1960s on MIT's TX-0 computer on loan from Lincoln Laboratory.
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  • Expensive Tape Recorder
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  • Expensive Tape Recorder
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