(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 oNmotherboards for processors, e.g. Socket 6 aNd Socket 8. PPGA is "plastic PGA" (as opposed to ceramic?). See also SPGA. (2000-03-09)