Acorn Archimedes

Acorn Archimedes
PaulVernon1974 · CC0 · source
Name	Acorn Archimedes
Manufacturer	Acorn Computers
Type	Personal computer
Release	1987
Discontinued	early 1990s
Cpu	ARM2, ARM3
Os	Arthur, RISC OS
Memory	512 KB – 4 MB
Display	VGA, SVGA, proprietary modes

Acorn Archimedes The Acorn Archimedes was a family of personal computers introduced by Acorn Computers in 1987 that showcased the first commercial use of the ARM architecture and influenced later projects at Apple Inc., ARM Holdings, and RISC OS development. Designed at a time when IBM PC, Apple Macintosh, Commodore Amiga, Atari ST and Sinclair ZX Spectrum platforms competed, the machine combined a custom Acorn RISC Machine processor design with a graphical operating environment and a strong presence in British educational institutions, BBC Micro user communities, and software ecosystems run by publishers such as Acornsoft, Superior Software, Micro Power, and Logotron.

Overview and development

Development began within Acorn Computers under engineers including Sophie Wilson and Steve Furber, who previously worked on the BBC Micro project tied to the BBC Computer Literacy Project and the BBC Microcomputer System. The chipset and CPU design drew on research from the Cambridge Computer Laboratory and collaborative contacts with companies such as VLSI Technology and institutions including Plessey; the ARM design later seeded ARM Holdings and influenced processors used by Apple A-series, Samsung Exynos, and embedded controllers in products by Nintendo, Sony, and Cisco Systems. The platform was announced alongside contemporaries like the Amiga 500 and the Atari ST and entered markets influenced by policy decisions from bodies such as the UK Department for Education and Science and trends exemplified by the Microcomputer Club of Great Britain.

Hardware

Archimedes machines used the ARM2 and later ARM3 CPUs fabricated through partnerships with foundries linked to Acorn Computers contracts and architecture licensing that later engaged DEC and Intel in comparative discussions. Motherboards included custom video controllers supporting modes comparable to VGA and bespoke modes used by software houses such as Novagen and The Fourth Dimension. Storage options interfaced with controllers for 3.5-inch floppy disk drives, SCSI adaptors, and hard disks from suppliers like Seagate and Quantum. Expansion capabilities accommodated Network add-ons such as Econet originally designed by Acorn Computers engineers and third-party Ethernet solutions from vendors like 3Com and Novell-compatible firms. Sound and graphics capabilities were exploited by developers including Psygnosis, Cow Software, and Bitmapped demo coders influenced by the demoscene.

Operating system and software

Initial firmware and system software shipped as Arthur and evolved into RISC OS; development involved teams linked to Acorn Computers and contributors who later joined projects at RISCOS Ltd., RISC OS Open Limited, and independent publishers. The platform supported programming languages and tools from suppliers such as Acornsoft, Dabs Press, C and Assembler toolchains, and interpreted environments like BBC BASIC extended by Sophie Wilson, while third-party compilers and IDEs were provided by companies such as Lynsoft and Codemasters. Commercial and educational software included titles from Micro Power, Superior Software, Psion, and multimedia projects influenced by standards promoted by ISO and multimedia developers including BBC Enterprises. Networking and file services integrated with standards and protocols implemented by firms such as X.25 implementers and institutions like University of Cambridge research groups.

Peripherals and expansion

A broad range of peripherals was available, manufactured by companies such as RiscStation resellers, JESE third-party vendors, and peripherals makers tied to the European microcomputer marketplace. Options included second processors, co-processor expansions adopting designs from the ARM roadmap, monitor choices from Sony and Philips, printers from Epson and Canon, and storage upgrades using controllers by Adaptec and vendors servicing the SCSI ecosystem. Networking gear enabled integration into campus infrastructures at institutions like University of Manchester, Imperial College London, and local education authorities coordinated by the British Educational Communications and Technology Agency. Mass-market accessories and expansion boards supported by companies like Castle Technology and Acorn's reseller network extended the platform into specialized applications such as desktop publishing and CAD used in firms like Rolls-Royce and research labs at European Organization for Nuclear Research.

Reception and legacy

The machine received praise in outlets such as Byte (magazine), Computer Shopper, and The Guardian for its performance-per-watt and innovations tied to the ARM architecture; commercial adoption was strongest in United Kingdom schools, where procurement involved bodies like the Inner London Education Authority and pedagogical initiatives associated with the BBC Microcomputer System. Despite limited global marketshare compared to IBM PC compatibles and Apple Macintosh, the platform's technical lineage directly shaped ARM Ltd. licensing strategies and informed processor choices in devices by Apple Inc. and Samsung Electronics, while community-driven projects and archives by groups such as RISC OS Open Limited, Stardot, and retrocomputing societies preserve software, documentation, and hardware. The legacy persists through emulation efforts like RPCEmu, preservation initiatives at museums such as the Science Museum, London and the National Museum of Computing, and influence on modern low-power computing exemplified by products from Raspberry Pi Foundation, BeagleBoard, and contemporary embedded systems.

Category:Acorn Computers Category:Computer-related introductions in 1987