Minicomputers

Large Memories
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Large Memories

Let us now study some historical developments in hardware and how they have affected software over and over again. The first mainframes had limited memory. A fully loaded IBM

Hard Disks
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Hard Disks

Initial mainframes were mostly magnetic-tape based. They would read in a program from tape, compile it, run it, and write the results back to another tape. There were no disks and

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