computer systems

CPUs/microprocessors

CPU/microprocessor icon

6500 computer systems

Commodore VIC-20 icon

68000 computer systems

Amiga 1000 running WorkBench icon

UNIX

Ken Thompson and Dennis Ritchie programming UNIX on PDP-11

IBM OS/2

OS/2 Warp 3 icon

BeOS / Haiku

BeOS icon

Raspberry Pi

Raspberry Pi logo