The Acorn Atom is a home computer made by Acorn Computers Ltd from 1980 to 1982, when it was replaced by the BBC Micro. The BBC Micro began life as an upgrade to the Atom, originally known as the Proton.

The MC6847 is a Video Display Generator (VDG) first introduced by Motorola in 1978 and used in the TRS-80 Color Computer, Dragon 32/64, Laser 200, TRS-80 MC-10/Matra Alice, NEC PC-6000 series, Acorn Atom, and the APF Imagination Machine, among others. It is a relatively simple display generator intended for NTSC television output: capable of displaying alphanumeric text, semigraphics, and raster graphics contained within a roughly square display matrix 256 pixels wide by 192 lines high.