First computer programmed: IBM 1620, Cass Technical High School, Detroit, MI, 1971. Punch card input.
Second computer programmed: IBM 360/67, Wayne State University, Detroit, MI, 1972. Punch card input.
First computer owned (and built, from a wirewrap kit, based on a Radio-Electronics article): Mark-8, 1974. Front panel input.
First computer designed/built from scratch: MOS Technology 6502-based system, wirewrapped for an early gas pump project. 1975. Don't think the Steves had ever seen a 6502 when we got ours - it was a prototype with a glued-on lid. Went to the factory and met with Chuck Peddle. Trivia fact: there's a empty in one corner of the original 6502 silicon. It was there to accommodate an electrical outlet on the designer's wall. The pencil drawing took-up the entire wall, but he needed to be able to use the electrical outlet, so...