(From TV programming) Normal high-usage hours on a time-sharing system; the day shift. Avoidance of prime time was traditionally given as a major reason for night mode hacking. The rise of the personal workstation has rendered this term, along with time-sharing itself, almost obsolete. The hackish tendency to late-night hacking runs has changed not a bit.
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Nearby terms: Prime Computer « Primenet, Inc. « prime number theorem « prime time » primitive » Princeton University » principal type