Joe <rigdonj(a)intellistar.net> wrote: Huh? My 7945s are 55MB hard drives period, there's nothing removable unless you have a screwdriver. OK, if you look inside there is probably a ~60MB Priam/Vertex MFM/ST-506 i/f drive, and one or two printed-circuit boards to speak CS/80 over HP-IB out one side, and MFM out the other to talk to the drive. There is a 68xx playing microcontroller to run the drive (on the board with the HP-IB connector) but it wasn't sold as a computer and I'm pretty sure it's intended to be user-programmable. -Frank McConnell