The Acorn Atom was a home computer released in 1980 by Acorn Computers Ltd, Cambridge, UK.
Designed by a team including Sophie Wilson and Chris Curry, it was Acorn's first complete home micro and a direct predecessor to the legendary BBC Micro.
It featured a MOS 6502 CPU running at 1 MHz, a Motorola MC6847 Video Display Generator, and came with Acorn BASIC and an optional floating-point ROM.
The Atom's simple 1-bit speaker produced characteristic beeps and buzzes that became part of British computing culture.
This emulator implements a cycle-accurate 6502 CPU, authentic MC6847 VDG rendering, and memory-mapped I/O for keyboard and sound.