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A comment on IBM mainframe tube module part II: Powering up and using a 1950s key debouncer. Parent comment

Re:IBM mainframe tube module part II: Powering up and using ... by pinewurst on Sunday January 14, 2018 @09:33PM (#16148060)
The 705 wasn't related to the 709->7090/7094 at all, being a variable length word machine. The 702 and 705 are close relatives with the 7080 their transistorized descendant. The 709's predecessor was the 704.
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