>It is a recurring question on this list. I have Microchip PIC documentation > >running back to 1982 (General Instruments) The 1982 data book assumed >that the meaning of the PIC acronym was so well known that it used PIC >everywhere but did not define what it meant. I have an OLD book somewhere that I'm positive said 'Peripheral Interface Controller'. I can't lay my hands on it at this instant and I'm a bit fuzzy right now so I could easily be wrong. dwayne Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (403) 489-3199 voice (403) 487-6397 fax