On Date: Wed, 17 Sep 1997 21:59:50 Grant Zozman &lt;gzozman(a)escape.ca&gt; wrote: Sounds like an early Datamaster to me. I have a Datamaster (5123), but it has a green-screen, not a B&W one. Otherwise the description matches. As I understand the Datamaster, it really was the predecessor to the PC. It was desktop based, although you needed a large desk <g>. It had an ISA-like bus into which you could plug-in cards. My guess, from talking to someone who worked on the project, that it was a business machine (A/P, billing, word processing, etc.) that fell out of favor when IBM introduced the PC in 1981. The PC was 1/3 the size, probably 1/4 the weight, much faster, and used 5-1/4" diskettes. There are several Datamaster owners here who can fill in more about the actual specs. I don't use mine much because I have a blown ROM chip that prevents me from booting... ------------------------------------------------- Rich Cini/WUGNET &lt;rcini(a)msn.com&gt; - ClubWin Charter Member (6) - MCP Windows 95/Netowrking