This library contains details on adding 256 K of RAM to the Kaypro 4 computer (pre 1984 model). As most UK Kaypro II's contain a 4 motherboard it applies equally to them. Additionally the design can be used with any 8 bit computer that uses 64K dynamic RAM's. No software is included here but if you wish to construct this for a Kaypro then I have written a BIOS that supports the RAM as a ramdisk under ZCPR3 and is available for the asking. The following files are included in this library:- 1. HOWTO.TXT - Detailed instructions 2. CIRCUIT.TXT - The schematic diagram 3. BENCHMRK.TXT - Not essential, gives an idea of benifits likely on disk intensive activities.