What are the oldest computer(s) you have?
I have a 1999 HP Omnibook XE2 with Windows 2000. It has a Intel Celeron Processor, and 160MB of RAM.
I have a 1996 IBM Thinkpad 365XD, with Windows 98, an Intel Pentium processor, 24MB of ram.
I have a 1995 Apple Powerbook 5300C with a PowerPC processor and 32MB of ram.
I also have a Casio Cassiopeia CR-A10 Windows CE pocket PC.