Keywords: Cromemco ZPU S-100 Board.jpg en Picture Cromemco ZPU card 1976 First microcomputer CPU card to achieve 4 MHz speed Switch on top of card could be used to switch between 2 MHz and 4 MHz speed Used Zilog Z-80 processor 2013-03-28 10 20 46 own Cromemco Cromemco computers S-100 bus peripheral cards Processor boards Cc-zero |