Introduction to Disk Drives
The disk drive was originally developed for digital computer applications. As processors became faster, it was possible for one processor to jump between several processes rapidly enough that each process appeared to be running continuously. This could only work if the necessary programs for each process could be accessed with the same rapidity. The cost per bit of core memory and the MOS memory will always ensure a future for some form of recording, but the use of tape technology does not provide sufficiently rapid access.
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