Definition: (1) Phase Alternation Line: broadcast television and video standard in wide use in Europe and former Eastern Bloc countries. * So-called as one of the chrominance signals is reversed in phase for every other scanning line. * It scans 625 lines per frame, at a rate of 25 frames per second. (2) Programmable Array Logic: type of integrated circuit which allows different interconnections to be made during manufacture, allowing creation of customised processors.

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