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O Acorn System 1, denominado inicialmente de Acorn Microcomputer (Micro-Computer), foi um microcomputador de 8 bits para hobistas, produzido pela empresa britânica Acorn Computers a partir de 1979.
, El Acorn System 1, llamado inicialmente el … El Acorn System 1, llamado inicialmente el Acorn Microcomputer (Micro-Computer), fue uno de los primeros ordenadores de 8 bits enfocado al mercado de los aficionados, con una CPU MOS 6502 a 1 MHz y fabricado en 1979 por la compañía británica Acorn Computers y diseñado por el entonces estudiante de la Universidad de Cambridge, Sophie Wilson.a Universidad de Cambridge, Sophie Wilson.
, L'Acorn System 1, inizialmente chiamato Ac … L'Acorn System 1, inizialmente chiamato Acorn Microcomputer è un microcomputer a 8-bit sviluppato per uso hobbistico, basato sul microprocessore MOS 6502 e prodotto dalla azienda di computer britannica Acorn Computers nel 1979. Il sistema fu progettato dall'allora studente della Università di Cambridge, Sophie Wilson. l'Acorn System 1 era una piccola macchina composta da due schede elettroniche in formato Eurocard.La prima scheda, che conteneva la parte dedicata all'input/output del computer, era dotata di un display LCD a sette segmenti, di una tastiera a 25 tasti e di una interfaccia per il registratore a cassette.La seconda scheda includeva la CPU, la memoria RAM e ROM ed alcuni chip di supporto.oria RAM e ROM ed alcuni chip di supporto.
, The Acorn System 1, initially called the A … The Acorn System 1, initially called the Acorn Microcomputer (Micro-Computer), was an early 8-bit microcomputer for hobbyists, based on the MOS 6502 CPU, and produced by British company Acorn Computers from 1979. The main parts of the system were designed by then-Cambridge-undergraduate student Sophie Wilson, with a cassette interface designed by Steve Furber. It was Acorn's first product, and was based on an automated cow feeder. It was a small machine built on two Eurocard-standard circuit boards and it could be purchased ready-built or in kit form.
* one card (shown right) with the I/O part of the computer: a LED seven segment display, a 25-key keypad (hex+function keys), and a cassette CUTS interface (the circuitry to the left of the keypad)
* the second card (the computer board - see below), which included the CPU, RAM/ROM memory, and support chips
* the two boards were interconnected by a semi-flexible, multi-conductor cable, known by its commercial name 'Spectra Strip'
* the whole assembly was held together by four 2.5mm × 20mm nylon screws and clear plastic spacing tubes for rigidity. Main Components (left to right)
* Top Row: INS8154 RAMIO Integrated Circuit (for keyboard and display), 6502 CPU, 2 × 2114 1024×4 RAM, 2 × 74S571 512×4 PROM, RAM/ROM expansion socket, second INS8154 for peripheral expansion (optional extra with the kit version).
* Bottom row: 1 MHz clock crystal, 4 × TTL logic chips providing address decoding for the memory and I/O expansion, 5V regulator.
* The smaller empty socket in the middle of the board was used to set the memory map of the RAM, ROM and I/O expansion by fitting or soldering wires between various positions according to the instructions in the Acorn System 1 Technical Manual.
* The three semi-circular legends on the bottom left of the board marked positions for optional push switches to trigger the board's RESET, IRQ (Interrupt ReQuest) and NMI (Non Maskable Interrupt) lines. Almost all CPU signals were accessible via the standard Eurocard connector on the right-hand side of the board. This connector was not fitted/supplied as standard with the kit version. The System 1 front board was used as the control panel for the fictional computer Slave in the 1981 series of the BBC science-fiction series Blake's 7. the BBC science-fiction series Blake's 7.
, De Acorn Microcomputer, later hernoemd tot … De Acorn Microcomputer, later hernoemd tot Acorn System 1, was een in maart 1979 geïntroduceerde microcomputer van Acorn Computers die was gericht op gebruik in laboratoria, maar door de lage prijs was de Acorn System 1 ook redelijk populair bij hobbyisten. In 1980 ging Acorn door met het ontwikkelen van de , die de processor op een -printplaat had zitten en een cassette-interface had. De verving in 1982 de cassette-interface door een floppydrive en had extra RAM en ROM-geheugen. De werd in datzelfde jaar uitgegeven met meer geheugen en 2 floppydrives. De was de laatste uit de serie en werd in 1983 uitgegeven. Het had eveneens 2 floppydrives en in de kast was ruimte voor 7 of 10 Eurocards. Alle Acorn System-systemen konden worden gekoppeld met een extern toetsenbord, de behuizing die ook voor de Acorn Atom werd gebruikt. die ook voor de Acorn Atom werd gebruikt.
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O Acorn System 1, denominado inicialmente de Acorn Microcomputer (Micro-Computer), foi um microcomputador de 8 bits para hobistas, produzido pela empresa britânica Acorn Computers a partir de 1979.
, L'Acorn System 1, inizialmente chiamato Acorn Microcomputer è un microcomputer a 8-bit sviluppato per uso hobbistico, basato sul microprocessore MOS 6502 e prodotto dalla azienda di computer britannica Acorn Computers nel 1979.
, El Acorn System 1, llamado inicialmente el … El Acorn System 1, llamado inicialmente el Acorn Microcomputer (Micro-Computer), fue uno de los primeros ordenadores de 8 bits enfocado al mercado de los aficionados, con una CPU MOS 6502 a 1 MHz y fabricado en 1979 por la compañía británica Acorn Computers y diseñado por el entonces estudiante de la Universidad de Cambridge, Sophie Wilson.a Universidad de Cambridge, Sophie Wilson.
, De Acorn Microcomputer, later hernoemd tot … De Acorn Microcomputer, later hernoemd tot Acorn System 1, was een in maart 1979 geïntroduceerde microcomputer van Acorn Computers die was gericht op gebruik in laboratoria, maar door de lage prijs was de Acorn System 1 ook redelijk populair bij hobbyisten. Alle Acorn System-systemen konden worden gekoppeld met een extern toetsenbord, de behuizing die ook voor de Acorn Atom werd gebruikt. die ook voor de Acorn Atom werd gebruikt.
, The Acorn System 1, initially called the A … The Acorn System 1, initially called the Acorn Microcomputer (Micro-Computer), was an early 8-bit microcomputer for hobbyists, based on the MOS 6502 CPU, and produced by British company Acorn Computers from 1979. The main parts of the system were designed by then-Cambridge-undergraduate student Sophie Wilson, with a cassette interface designed by Steve Furber. It was Acorn's first product, and was based on an automated cow feeder. It was a small machine built on two Eurocard-standard circuit boards and it could be purchased ready-built or in kit form. Main Components (left to right) kit form. Main Components (left to right)
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Acorn System 1
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