• 1952

Hardware Description

The IBM 726 dual magnetic tape reader/recorder for the IBM 701 was announced on May 21, 1952. Unlike later IBM 7 track drives, the 726 could read backwards as well as forwards.The tape had seven parallel tracks, six for data (called a copy group, not a character) and one to maintain parity. Tapes were recorded in odd parity, to ensure at least one bit transition per copy group as well as for error checking.

Citations:

Legacy Content: Unknown Author
  • Model Number:

    726
  • Manufacturer:

  • Hardware Type:

    Peripheral
  • Manufacture Year:

    1952
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