I always thought my first computer was a Texas Instruments TI99 computer (cassette *and* cartridge loaded). It was with that I learnt how to code basic when I was 7 or 8 or something. Well after seeing The Journey Robot I realized that BigTrak was actually my first computer.
You could program BigTrak with up to 16 instructions before setting it off, and it would execute them. Say forward for 5 seconds, turn, forward for 10 seconds, fire phasers etc. (or something like that, I don’t remember it fully). I’d love to play with it again, but they are rather rare now I hear.