The Commodore 64
Better sound, better sprites, and a playground war with the Spectrum.
The best-selling home computer of all time, and the other half of every argument in every British school in 1985.
The SID chip gave it music that genuinely holds up, and Rob Hubbard's loading tunes are still played live today.
The 1541 disk drive was slower than it had any right to be, but if you had one you were the richest kid in the class.
Cost back then
£199
Goes for now
£100–£350