Acorn User, also known as BBC Acorn User, was the major magazine for the Acorn computers starting with the release of the BBC 8-bit computer, through the 32-bit BBC Archimedes, to the RiscPC and ill-fated Phoebe. After Acorn was broken up to realise the cash value of the ARM processor business the magazine, and its successor Qercus, continued to support the Acorn compatible RiscStations, A9home, and Iyonix together with development of RISC OS 4, 5, and 6.