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Operating systems. Thumbs up for correct answer! 14. In which of the four I/O software layers is each of the following done (a) Computing the

Operating systems. Thumbs up for correct answer!

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14. In which of the four I/O software layers is each of the following done (a) Computing the track, sector, and head for a disk read. (b) Writing commands to the device registers. (c) Checking to see if the user is permitted to use the device (d) Converting binary integers to ASCII for printing

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