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The Acorn System 1, initially called the Acorn Microcomputer (Micro-Computer), was an early 8-bit refers to the number of bits used in the data bus of a computer. ...8_bit Apple IIc Generally, a microcomputer is a computer with a microprocessor (µP) as its CPU. Another general characteristic of these computers is that they occupy physically small amounts of space. ...microcomputer for hobbyists, based on the The MOS Technology 6502 is an 8_bit microprocessor designed by MOS Technology in 1975. ...MOS 6502 The central processing unit (CPU) is the part of a computer that interprets and carries out the instructions contained in the software. ...CPU, and produced by The United Kingdom of Great Britain and Northern Ireland is a country in western Europe, and a member of the British Commonwealth and European Union. ...British company Acorn Computers Ltd. ...Acorn Computers from 1979 is a common year starting on Monday. ...1979. The upper board of the Acorn System 1, featuring keypad and Various light-emitting diodes (5 mm reds, 3 mm greens and yellows) A light-emitting diode (LED) is a semiconductor device that emits incoherent monochromatic light when electrically biased in the forward direction. ...LED display. The system was designed by then_ The University of Cambridge is the second_oldest university in the English_speaking world (after Oxford). ...Cambridge_undergraduate student Sophie Wilson, formerly Roger Wilson, is a British computer scientist. ...Sophie Wilson. It was a very small machine built on two Eurocard is a European standard format for PCB cards, which can be plugged together into a standardized chassis. ...Eurocard_standard Close_up photo of one side of a motherboard PCB, showing conductive traces, vias and solder points for through_hole components on the opposite side. ...circuit boards: - one card (shown right) with the This article is about the computer interface. ...I/O part of the computer: a Various light_emitting diodes (5 mm reds, 3 mm greens and yellows) A light_emitting diode (LED) is a semiconductor device that emits incoherent monochromatic light when electrically biased in the forward direction. ...LED A seven segment display (sometimes written as 7_segment display) is a form of display that predates the now ubiquitous dot_matrix displays. ...seven segment display, a 25_key keypad ( In mathematics, hexadecimal or simply hex is a numeral system with a radix or base of 16 usually written using the symbols 0–9 and A–F or a–f. ...hex+ A function key is a key on a computer or terminal keyboard which can be programmed so as to cause an operating system command interpreter or application program to perform certain actions. ...function keys), and a For the meaning of cassette in genetics, see cassette (genetics). ...cassette interface (the circuitry to the left of the keypad)
- the other card containing the rest of the computer, i.e. the actual computing part including the CPU, Different types of RAM. From top to bottom: DIP, SIPP, SIMM 30 pin, SIMM 72 pin, DIMM, RIMM RAM redirects here. ...RAM/ Rom is also the name of a toy and comic book character Rom (Spaceknight). ...ROM memory, and support chips
Almost all CPU signals were accessible via a Eurocard connector.
See also
External links - Comprehensive information on the System 1, including an emulator (http://www.cary.demon.co.uk/acorn/) – Provided by Mike Cowlishaw
| List of Acorn Computers Ltd. ...Acorn Computers microcomputers | | Microcomputer System | The Acorn Atom was a home computer made by Acorn Computers Ltd from 1981 to 1983 when it was replaced by the BBC Micro (originally Proton) and later the Acorn Electron. ...Atom | Top view of the BBC Micro The BBC Micro, affectionately known as the Beeb, was an early home computer. ...BBC Micro (aka Proton) | The Acorn Electron Acorn Electron BASIC _ the first thing displayed when an unexpanded Electron is switched on The Acorn Electron was a budget version of the BBC Micro educational/home computer made by Acorn Computers Ltd. ...Electron | The Acorn Communicator was never released. ...Communicator | The Acorn Business Computer 210, also known as the Cambridge Workstation. ...Business Computer | BBC Master | The Acorn Archimedes was Acorn Computers Ltds first general purpose home computer based on their own ARM RISC CPU, and spawned a family of very capable machines with various options. ...Archimedes range | The Risc PC (codenamed Medusa) was Acorn Computers Ltds next generation RISC OS/Acorn RISC Machine computer, launched in 1994, which superseded the Acorn Archimedes. ...RISC PC | The Acorn Network Computer was a network computer designed and manufactured by Acorn Computers Ltd. ...Network Computer | The Acorn Online Media Set Top Box was produced by the Online Media division of Acorn Computers Ltd for the Cambridge Cable and Online Media Video on Demand trial and launched early 1996. ...Set_Top Box | The Phoebe PC (or RISC PC 2) was to be Acorn Computers Ltds next generation RISC PC, slated for release in late 1998. ...Phoebe | |
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