You're looking at a Dell Optiplex GX260 desktop with a Pentium 4 processor, 512 MB of RAM, CD drive, and a 40 GB hard drive. It has a clean install of Windows 2000 with SP4, ready for you to install whatever else you need. It can also be loaded with Windows 98 or XP. These have working serial and parallel ports and are perfect for CNC machines, sign cutters, embroidery machines, etc. Let me know if you need additional software installed or need a keyboard, mouse or monitor.
I also have other vintage desktops and towers that will run Windows Vista, XP, Me, 2000, 98, 95, Windows 3.1, DOS, etc. I'm in the process of readying more of them for sale.
E-mail me via craigslist if you have any questions or need something specific, like an ISA slot, dual serial ports, CD/DVD burner, inkjet/laser printer, etc. I've had a lot of problems with the craigslist relay e-mail lately, so, if you e-mail me, please incude your 'real' e-mail address or a phone number and I'll get back in touch with you.