W8SDZ@SIMTEL20.ARPA (Keith Petersen) (06/16/86)
>I am very much interested in upgrading my Kaypro II to 256K RAM >and I have copied the files you mentioned in your message to >INFO-CPM. I would like to obtain a copy of the BIOS that the >author wrote but, I don't see him identified anywhere in these >files. Can you let me know who he is and how to get in touch >with him? Thank you. > Dan, K4JWW GEnie Mail follows: Date: Sunday, 15-Jun-86 10:23:00 EDT From: Bill Duerr - CP/M SysOp <B.DUERR> To: Keith Petersen - CP/M SysOp <W8SDZ> Sub: KAY256.LBR File 1632, KAY256.LBR, Library 18 of the CP/M RoundTable, contains details on adding 256k of RAM to the Kaypro IV computer (pre 1984 model) by installing 256k chips in place of the 64k chips. It applies equally to Kaypro II's that contain a IV motherboard. The design can be used with any 8 bit computer that uses 64k dynamic RAM. This library contains detailed instructions, the circuit schematic diagram, and benchmark results (gives an idea of benefits likely on disk intensive activities). No software is included here but if you wish to construct this for a Kaypro, the author has written a BIOS that supports the RAM as a ramdisk under ZCPR3 and offers it for the asking. The library has been downloaded from The DataCOM Super Systems(tm) (see JUN86.MQG for information how to access this system), which in turn came from a caller in London England who only calls once or twice a month. Steve Sanders advises that he does not as yet have the altered BIOS code mentioned in the DOC file. It will be available on his BBS as soon as he gets it. He did however get the address of the author. It is: Dr. Michael W.D. Liddle 21 The Frostings Grenoside Sheffield, S30 3NZ England If you make this modification, please provide feedback in this BB section.