Commodore64 (really the family computer. Only had a tape deck for most of it's life, and got a floppy drive and 9pin dot matrix printer later on).
Then 286@16MHz w/ 1MB RAM, Paradise VGA (256KB RAM), 40MB HDD. (which at end of life at 287 Math co-processor and 4MB RAM upgrades). Ran Dos 3.3 +...