1977, 6502 assembly language (hand assembled machine code really) on a KIM-1. 1k RAM, 6 digit 7 segment display and hex keypad. Still have that computer and it

1977, 6502 assembly language (hand assembled machine code really) on a KIM-1. 1k RAM, 6 digit 7 segment display and hex keypad. Still have that computer and it still works.