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  • wall time
    n. (also `wall clock time') 1. `Real world' time (what the clock on the wall shows), as opposed to the system clock's idea of... VIEW ENTIRE DEFINITION

  •  View Definition: Iron Age 

    Iron Age

    n. In the history of computing, 1961--1971 --- the formative era of commercial mainframe technology, when {big iron} dinosaurs ruled the earth. These began with the delivery of the first PDP-1, coincided with the dominance of ferrite core, and ended with the introduction of the first commercial microprocessor (the Intel 4004) in 1971. See also Stone Age; compare elder days.