OMG did I love my Atari 800 back in 1985 when it was clearly one of the best price/performance machines available at that time.
Overlooked by many (but not all) was its built-in MIDI ports and its abilty to control all those early model beatboxs and synths...unfortunately I forget the name of the rather crappy software that I used to get things talking and synced up, but it did work and the bitmapped color graphics were way ahead of its time.
Too bad Atari self destructed with the cartrage business, and who knows what other poor business decisions it made, but that computer was one of my favorite things of my late teens.