Never heard of that model number, might be the US version of the PC1640DD which was an 8086 AFAIK, with 640K and dual 5.25" floppy disk drives. Expansion was through standard 8bit XT slots, if you're lucky someone might have stuck a hard card in it. The other popular upgrade was swapping the CPU for a NEC V20. The PSU was combined into the CGA monitor so unless it has the monitor with it you'll have to chuck together a small PSU for it. The keyboard connector was non-standard and ISTR there were keyboards at the time which had AT/XT/Amstrad switches so the keyboard wiring maybe non-standard too. The other alternative is that it's the PPC640DD which was a portable 8086 with a fullsized keyboard and a non-backlit CGA LCD screen occupying about half the length on the right hand side (or was it LHS =\ ). The machine had dual 3.5" floppies and a built in 2400baud modem, ISTR there was one 8bit expansion slot. There was at least one upgrade company in the UK that would supply backlights and HDs for these machines but that was about 4 or 5 years ago. - /-------------------------------------------------------------------\ | The Lost One, Thanatos admin and all round good egg | You can't | | Contact Thanatos BBS on *http://thanatos.yawc.net, | fool me. | | *ftp://thanatos.yawc.net or | There ain't | | *telnet://thanatos.yawc.net | no Sanity | | | Clause! | \-------------------------------------------------------------------/