Can't you also tell by the BIOS date?? I seem to remember that the original PC had one of three BIOS dates: 4/24/81, 10/19/81, and 10/27/82. This in combination with looking for a cassette port should be a good way to tell. ================================== Rich Cini/WUGNET - Charter ClubWin! Member (6) - MCP Windows 95/Windows Networking - Collector of classic computers <<========== Reply Separator ==========>>