On Wed, 2 Jul 1997, Ken Marshall wrote: I have an SMC-70 as well; unfortunately, I have neither an OS nor the floppy drives for mine. The few pieces of information that I have found about this machine are that it was (supposedly) the first mass-produced computer to use 3.5 inch floppy disks and that it was used as a part of a video editing controller that Sony produced in the early '80s. The floppy disk claim does make some sense, since the 3.5 inch format was developed by Sony. A few more interesting things about this machine: - The power supply is located in the rear portion of the case, which is mounted on tracks and movable. Moving the power supply away from the main portion of the case reveals a ribbon cable with several 50-pin socket connectors. This ribbon cable terminates at the 50-pin Centronics connector on the back of the unit. Does anyone have a description of this bus? I'm assuming that there were options available that fit into this area and extend the length of the unit, somewhat like the options that can be connected to the IBM PC Convertible. - There is a switch on the side of the unit that selects the startup device, which can be either ROM or disk. I'm assuming that the boot ROM was an optional product. In any case, mine doesn't have a boot ROM. Does anyone know if the SMC-70 floppy drives are the same as (or compatible with) any of the other drives that are made by Sony, such as the 400k SSDD drives used in the Macintosh 128k/512k? If anyone is interested, I can snap a few pictures of the SMC-70 tonight, put them on the Web, and post the URL. -- Scott Ware s-ware(a)nwu.edu