<hardware> (PGA) A style of integrated circuit socket or pin-out with pins laid out on a square or rectangular grid with a separation of 0.1 inch in each direction. The pins near the centre of the array are often missing.
PGA is often used on motherboards for processors, e.g. Socket 6 and Socket 8.
PPGA is "plastic PGA" (as opposed to ceramic?).
See also SPGA.
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Nearby terms: ping-flood « pinging « ping-pong « Pin Grid Array » Pink-Shirt Book » pin-out » PIO mode