Inside the Commodore Pet 2001 vintage computer

This is a Personal Electronic Transactor model 2001-8. It has 8K of RAM and runs great. Notice the slight modification made to the machine. The red button on the front controls a small electric fan mounted above the motherboard. These original PETs ran warm and some of the components didn't like that much. I suspect that this was a fairly common modification.

Reprinted with permission from Vintage-Computer.com