Just some useless info, FWIW. All this recent talk of bubble memories got me to remembering.... A company I worked for in Buffalo NY around 1982 was putting bubble memories into a small diskless machine that they sold (or rented?) to golf-course pro shops. It was called a "handicaputer" - it kept track of golfer's scores and handicaps and such. No idea how many were made, but my impression is not very many. But it might be something to watch for, for anyone into bubbles. We also had, IIRC, an SS-30 card (SWTPC I/O bus) with a bubble memory on it, for which I hacked Flex "disk" drivers. (Somebody else had already written the lower-level bubble read/write code.) At one point it booted into Flex. Might have been called "disk-bub" or "flex-bub" or something similar. Sold only a handful though. Really cool but probably too expensive unless you really needed bubbles for some reason. One went to some research station in Alaska (or Antarctica?) - they said disk drives would have frozen up. Bill. __________________________________ Do you Yahoo!? Yahoo! Photos: High-quality 4x6 digital prints for 25¢ http://photos.yahoo.com/ph/print_splash