I wrote a token ring networking simulator with error simulation (token dropping etc) on a 6502. 128 bytes of RAM. It was a squeeze. I used a Hewlett Packard de

I wrote a token ring networking simulator with error simulation (token dropping etc) on a 6502. 128 bytes of RAM. It was a squeeze. I used a Hewlett Packard development system with a 12" hard disk. Good times.