Ah, the good old days! I got my first computer in 1978. I looked at the Commodore PET and the Apple II, but they didn't seem challenging enough. They already had displays and stuff. The KIM-1 was a single board computer with a 6502 processor, 1K RAM, 4K ROM, 21 key hex heypad, and 6 7-segment displays under direct processor control. Mass storage was either punched paper tape or audio cassette. It was hacker-heaven! (Back then, hacker was a hard-core hobbyist who was into rolling his own hardware and software, not a bright kid with criminal intent.)