As a senior in the MSU Computer Science program I had terminal privileges on the Cyber mainframe. Woohoo, no more punched cards! Problem was, the terminals were usually all taken during the day and evening, and late night was a poor option since I lived three miles from campus in a low-rent area and the busses stopped running at night. If only I could connect from home with my shiny new Atari 400! But modems cost $200 and the 850 interface even more.   Ciarcia's Circuit Cellar in BYTE magazine