Acorn Computers


Acorn Computers Ltd. 

was a British computer company established in Cambridge, England, in 1978.


 Advert from the 24 April 1986 issue of New Scientist.

Though the company was broken up into several independent operations in 1998, its legacy includes the development of RISC personal computers. One of its operating systems, RISC OS, continues to be developed by RISC OS Open. Some of Acorn’s former subsidiaries live on today—notably ARM Holdings, which is globally dominant in the mobile phone and PDA microprocessor market.


Acorn is sometimes referred to as the “British Apple” and has been compared to Fairchild Semiconductor for being a catalyst for start-ups. In 2010, the company was listed by David Meyer in ZDNet as number nine in a feature of top ten fallen “Dead IT giants”. Many of Britain’s IT professionals gained their early experiences on Acorns, which were often more technically advanced than commercially successful US hardware. (from WIkipedia)


The Acorn Archimedes was Acorn Computers‘ first general purpose home computer based on their own ARM architecture.

Using a RISC design with a 32-bit CPU (26-bit addressing), at its launch in June 1987, the Archimedes was stated as running at 4 MIPS, with a claim of 18 MIPS during tests.

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