Can anyone provide me information on this board, Approximately 4in X 3 1/4 in, plugs into a adapter that replaces the processor, marked "Surprise" 1986 Maynard Electronics, INC. Arrived in an aged IBM PC. It has a NEC V20 chip. Also, anybody interested in, Quadram Quadboard, complete but rather battered. Memory Module, 16 meg IBM part # 11S9111010784AF05P8A 02K2288 DIMM 16M Free for personal use, not for resale Rich Stephenson loedman1(a)juno.com