Oldest Working PC?

I used to work for Martin Marietta's Aerospace division. When the defense work slowed to a trickle in the early 1990s and they were laying off hundreds of people I switched over to the Data Systems division. One of the jobs that I did there was to go around and inspect company PCs for unauthorized software. As part of that process we had to inventory all of the computers, SW, peripherals, etc. Based on what we found and the user requirements, MM replaced thousands of various brand and vintage PCs with new 386s. One day, I inspected an upper level manager's computer and I found an original IBM PC with either 64 or 256k of RAM and one floppy drive and no hard drive. It was an IBM model 5150 with serial number 000023!!!! We couldn't even run our virus checker and inventoring SW on it. The only thing that the manager used it for was to connect to the E-mail system (IRMA IIRC). He had DOS 2.0 IIRC and the IBM IRMA SW and that was all. We tried to upgrade him to a 386 with Windows but he was adament and refused to switch to the new system and kept his old PC. It's probably still there. Joe At 08:59 AM 1/16/04 -0600, you wrote: