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| IBM 2741 hardcopy terminal used a selectric typewriter for output (1975). | The mountable disk farm of the 70's (1976). | Amdahl 470/U6 installed in 1977; 3.95 mips (1977). | New COM system uses chemicals (1978). | MVS test jobs (1978). |
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| I/O of 1978: cards, paper, tape, disk, versatec plotter, microfiche (1978). | IBM 3350 disk drives; 625 MB (1979). |