| 1. | The teletypewriter machines used punched paper tape, before the invention of chadless tape.
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| 2. | There is also punched paper tape with a Fortran 2 program for a PDP-8.
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| 3. | It used vacuum tubes, a magnetic drum, and punched paper tape readers and punchers.
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| 4. | Output was to 80-column punched cards, line printer, and optionally to punched paper tape.
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| 5. | Input was from 80-column punched cards and optionally 160-column punched cards and punched paper tape.
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| 6. | Punched paper tape was the external storage medium.
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| 7. | Input and output was through punched paper tape or punched cards, and printing on a line printer.
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| 8. | Some might use some fairly old technology, like punched paper tape, to specify the notes to be played.
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| 9. | Another method Space Track later had was a secure teletypewriter machine that had a pre-punched paper tape attached.
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| 10. | Due to cost constraints, many PDP-8s had punched paper tape readers as their only mass-storage I / O device.
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