513:
feature was the introduction of "relocatable" language (or application) ROM support, permitting appropriately written ROM-based software to automatically take advantage of a second processor, if fitted. Priced at around £45, it was noted that since the copyright message in the ROM was dated 1988 and the manual dated
October 1989, such an upgrade might have been more widely adopted by users (and the relocatable ROM feature adopted by software producers) had it been released earlier, with the Master Compact ROM having already benefited from some of the featured improvements, such as direct entry of "foreign characters" or "top-bit-set characters" from the keyboard.
574:
717:
814:-inch discs using the ADFS format was regarded as conducive to "handling many small files" and "distinguishing between different topics or users on the same disc". Amongst the bundled software, Acorn's adoption of Logotron's Logo implementation was seen as particularly welcome. In an effort to increase sales of the Compact to education, Acorn reduced the price of the machine in late 1987, bundling the Mertec Compact Companion interface with it to provide the BBC range's traditional expansion connectors, pricing it at £344 including VAT without monitor.
348:
the Model B, it perpetuated the architectural limitations of the earlier models, with a 16-bit address bus providing direct access to only 64 KB of memory at a time, thus necessitating the use of paging mechanisms to make additional RAM available. Access to the upper 32 KB region of standard RAM was provided by one such mechanism to take over some of the demands made on the lower memory region by the system. It was divided into three separate regions, each with a codename, following Acorn's architectural traditions:
654:, and the requirements of the GEM desktop caused potential problems when running some applications, although memory expansions existed to mitigate such problems. System call compatibility was only assured for MS-DOS and PC DOS 2.1, but other DOS versions were not supported, and undocumented system call usage ("fairly rare, but does include some Microsoft packages") could cause applications to run incorrectly. Software written for later GEM versions would also not necessarily run correctly.
531:
142:
691:
monitor and disk drives, considering that the clone would also include a monitor and drives in the price. The price was further reduced to £199 plus VAT in early 1987, with GEM Desk Top, GEM Write and GEM Paint being provided free with the upgrade, and a "final price cut to £99" was reported in 1989, effectively exhausting the remaining stocks. Although largely abandoned by Acorn as the company shifted its emphasis to the
979:
36:
1040:
796:
built-in ports of the machine. For example, Morley
Electronics employed the mouse/joystick port to attach their teletext adapter to the Compact. Such adaptations were facilitated by the availability of the User Port signals via pins provided by the joystick port, together with three signals (PB5, PB6 and PB7) provided by the general expansion connector.
744:), aiming to provide a "one plug" solution that had, at the time of release, been successfully popularised by manufacturers such as Amstrad. Indeed, one reviewer gave credit to Amstrad for having engineered the delivery of "an innovative, cheap machine for education" – the Compact – through robust competition with Acorn in the sector.
725:
868:. Little commercial software, beyond that included on the Welcome disk, was ever made available for the system, despite the claim by Acorn at the time that over 100 titles would be "set for distribution on 3.5in disc format for the Compact launch". The most avid supporter of the Master Compact appeared to be
621:
interface module and ANFS fitted as standard (it was usually an option). It used the same main circuit board as the Master 128, but the components for missing interfaces were simply not fitted (though there was nothing stopping them being added later by someone with appropriate soldering skills). The
497:
Although the Master series was intended to be compatible with "legally written" software for the older models, there were some problems running older programs, particularly games. Conversely, although few programs were ever targeted specifically at Master series machines (except the Master 512), many
477:
In terms of expansion ports, the Master 128 retained all of the standard interfaces of the BBC Micro. One notable addition to the Master 128 was that of an internal modem socket permitting the installation of a modem without occupying the machine's RS423 serial port. An Econet interface could also be
439:
to host the screen memory, freeing up the conventional screen memory region for applications. The remaining 12 KB was available to the system for workspace, freeing up memory that would normally be claimed by ROMs such as filing systems. The cumulative effect of enabling shadow RAM and using the
343:
of dynamic RAM as standard, alleviating the shortage of available RAM which had previously discouraged use of the display modes offering the highest quality graphics on earlier models. Of the total 128 KB of RAM, 64 KB was provided as standard RAM, being used for applications, screen memory
1594:
Several of the inputs were directly wired to specific registers in order to allow the hardware to do some of the heavy lifting. For example, the light-pen input would directly halt a counter which was started by the start of the vertical sweep of each display refresh, making calculation of where the
347:
Of the 64 KB standard RAM, the lower region of 32 KB was employed in a fashion familiar from earlier models, providing workspace for languages, applications and the system, also hosting screen memory for many programs, particularly games. While the 65C12 ensured software compatibility with
673:
To remedy compatibility issues caused by a lack of memory, one company, Essential
Software, provided an upgrade service augmenting the fitted RAM of the Master 512 upgrade with four 1 megabit devices providing 512 KB to yield a total of 1 MB of RAM. Priced at £99, and also compatible
464:
To hold the expanded OS and BASIC, the Master 128 was fitted with a ROM device having a capacity of one megabit, or 128 KB. Alongside the OS and BASIC, a text editor suitable for writing programs was included, DFS and ADFS provided filing system support to access files stored on disk, the View
443:
Use of the 64 KB of sideways RAM favoured the installation of ROM images into each of the 16 KB banks, with Acorn having announced a "ROM licencing scheme" to authorise the use of the company's ROM-based software in RAM. However, a version of BASIC known as BAS128, previously released for
817:
Unlike the other models in the series which provided a battery-backed clock and memory for configuration settings, the
Compact utilised EEPROM storage for its configuration with support for only a limited number of writes, making the EEPROMs "a consumable, like a battery" requiring "replacement at
512:
An upgrade to the Master 128 operating system ROM was released by Acorn in early 1990, providing bug fixes and some performance and functionality enhancements, with the filing systems benefiting in particular. View, Viewsheet and Edit applications all saw various levels of enhancement. One notable
1223:
Modes 3 and 6 were special software (framebuffer) text modes. To save RAM, the count of lines was reduced from 32 to 25. As this would reduce the height of the frame, filler rows were created between each line of text when the frame was output, where no pixels were read from the framebuffer. This
735:
This model is, as the name indicates, a compact version of the Master 128 (ostensibly known as the "Baby B" during development) with some expansion functionality removed and other expansion options added, and with different bundled software. Unlike previously released Acorn microcomputers, it was
690:
Along with compatibility issues, the pricing of the Master 512 upgrade also inhibited its competitiveness. The estimated price of an IBM PC clone of £500–800 compared "very favourably with the £900 needed for a complete Master 512", this being the Master 512 upgrade together with the base system,
686:
were all reported as being compatible. The company also produced a selection of utilities for the Master 512, including the Co-Processor Filing System (CPFS) which allowed the 512 KB of coprocessor memory to be used as a RAM disc by the computer when operating in its "native" BBC Micro mode.
521:
Acorn issued a safety warning for the Master 128 and ET models in 1986 related to the battery installed in the machine. This battery was fitted in a circuit that permitted the charging of the battery "contrary to the recommendations of the battery manufacturer". Due to the risk of combustion with
451:
and BBC BASIC ROMs, still limited by the memory architecture to 16 KB each, were augmented by additional ROMs. In total, the updated OS, known as MOS 3.2 occupied 35 KB and incorporated features previously introduced in the
Graphics Extension ROM for the BBC Micro, along with additional
845:
The version of BASIC on the
Compact included re-coded mathematical routines, said to provide a 30% speed increase over the version included in the rest of the Master series. This version of BASIC was called Basic4(1986), aka 'BASIC41'. This was later replaced with version 'BASIC42' in 1987. This
707:
coprocessor with 32081 floating point processor and 512 KB of RAM, running the PANOS operating system. This was similar to the previous external 32016 Second
Processor. Ultimately, Acorn dropped the Scientific due to unspecified technical problems with the co-processor, also indicating that
468:
The Master series largely carried forward many of the core architectural features of the earlier BBC Micro models. The sound chip used in earlier models was retained, but the dedicated speech interface was omitted, with a "plug-in speech cartridge" anticipated by one reviewer for the Master 128.
838:
The keyboard on the
Compact was the first to move away from using the traditional "sprung-key" keyswitch design used by the rest of the BBC Micro family. Instead, it used a rubber-plastic moulding membrane. An input method was provided to permit the input of "foreign characters" or "top-bit-set
770:
drive and the system power supply. Both monitors supplied with the
Compact were Philips models: a "green screen" monochrome monitor for high-resolution applications connected using "an Electron-style phono socket", whereas the colour monitor provided a 0.42mm dot pitch "generally billed as high
795:
Various third-party suppliers restored some of the removed expansion functionality via the expansion connector, such as support for
Electron and Master 128 cartridges and the provision of various BBC Micro expansion connectors. Some suppliers instead chose to adapt existing peripherals to the
657:
A product by Shibumi Software called Problem Solver aimed to address various compatibility issues related to the increased speed of the coprocessor relative to a traditional IBM PC, display and keyboard differences (also supporting the BBC Model B keyboard for users of that machine with the
791:
port were not provided on the Compact. Additionally, no internal sockets were provided for adding a co-processor or 2nd processor. However, the machine did include a 50-way expansion edge connector on the right side of the keyboard, that was similar to cartridge socket #3 on a Master 128.
482:
interface. The first of such internally connected second processors, known as co-processors, was the Turbo co-processor featuring a 4 MHz 65C102 and 64 KB of RAM, later followed by the Master 512 upgrade board featuring a 10 MHz 80186 and 512 KB of RAM.
649:
The competitiveness of the Master 512 was constrained by its compatibility with various DOS applications, with this being limited by "protection and direct use of IBM hardware" by some applications. The additional memory requirements of DOS Plus, when compared to those of
4043:
Once fitted, the Compact Companion offers a User Port, an Analogue (Joystick) Port, a 2 MHz bus and an Acorn 1770 DFS. The connections are all standard Master 128 type connectors and the DFS may be configured to be the disc interface selected on turning on the
456:
variable yielding the current date and time in a concise but human-readable format. The inclusion of a real-time clock to keep the date and time was a notable built-in feature of the Master 128 and derived models, together with 50 bytes of battery-backed
747:
Although the Compact has a "three box" arrangement, the main functionality of the system is actually provided in the keyboard unit, much like the Master 128, but rather reduced in size in comparison to the Master 128 and Model B, being styled on the
1224:
creates characteristic black lines between the rows of text when a different background colour is set, and a blank gap at the bottom of the display with the left-over pixels. The screen mode is otherwise held in memory as a regular graphics mode.
1595:
lightpen was touching the screen little more than a simple divide/remainder operation. Likewise, the motor control relay for the audio cassette tape was controlled by a simple command and could be readily used in numerous control applications.
473:
chips to perform tasks such as handling the keyboard, input/output and some display functions. This left an impression of the inside of the Master 128 being "another world" compared to the original BBC Micro, featuring fewer but larger chips.
834:
Version 2 filing system was supplied as standard, running via a Western Digital 1772 chip (a faster version of the widely used 1770), though it is possible to load a 1770 DFS ROM into sideways RAM, or to insert a ROM or EPROM containing it.
674:
with Problem Solver, the upgrade overcame the elevated memory requirements of DOS Plus relative to MS-DOS and also allowed the system to meet the requirement of some applications to have 640 KB of memory available. Consequently, GEM 3,
799:
Acorn reportedly designed the Compact to appeal to home users and to primary education, with the single-plug power connection regarded as more convenient for setting up a machine that might be moved around in a school, and the choice of
444:
the BBC Model B+ 128, was provided on disk and was able to use the full 64 KB of sideways RAM as workspace, thus expanding the memory available to BASIC considerably. Other Acorn languages did not support this arrangement, however.
708:
512 KB of RAM appeared to be insufficient for the target audience, whose applications tended to need 1 MB of RAM, this already being provided by the upgraded 32016 Second Processor product known as the Cambridge Co-Processor.
486:
Outwardly, the Master series models added a numeric keypad alongside the familiar keyboard, and the Master 128 and its variants incorporated two cartridge slots behind the keypad, these employing sockets that provided a superset of the
4188:
L Fox, L Hayes and DF Mayers, 'The Double Eigenvalue Problem'; and RA Sack, 'Variational solutions of Lamé equations', Department of Mathematics, University of Salford. 1971-2, latter Department of Theoretical Physics, University of
478:
fitted internally at a relatively low cost of £49 including VAT. However, the main addition to the Master 128's expansion capabilities was the inclusion of an internal connector for second processor expansions employing Acorn's
465:
and ViewSheet applications respectively offered word processing and spreadsheet functionality. A terminal emulator was also included to support serial communications over the machine's RS423 port or the optional internal modem.
1208:, separate video RAM was used so that choosing a high-resolution mode did not reduce the amount of available user RAM. (However, user RAM could still be used as the video buffer if required, in order to allow effects such as
775:
connector, anticipating "future applications" employing more colours and even "overlaying video pictures". The Master Compact was also sold as a "TV system" bundling a PAL television adapter that was also sold separately.
915:. Ultimately, the Compact was discontinued in 1989 with "over eighty thousand Compacts and Olivetti's Prodest version" having been sold, with Acorn shifting its focus to the Master 128 as "its core 8-bit machine".
941:
In the UK the Digimouse was sold with Clares' Artroom, an illustration package, later being made available to purchase on its own. Clares' Artroom was localised for the PC 128 S and sold under the name Project.
452:
commands and system calls plus a variety of enhancements. The improved version of BBC Basic was named Basic 4, fixing bugs in the earlier Basic 2 and introducing enhancements and new functionality such as a
4762:
658:
co-processor attached), the behaviour of "memory resident packages" such as Sidekick, and the behaviour of particular applications. The product reportedly allowed well-known programs such as Ashton Tate's
335:
technology, the 65C12 used less power than the 6502 and offered somewhat better performance, reportedly "almost as fast" as the original 3 MHz 6502 second processor for the BBC Micro. The systems had
872:, who produced and specifically labelled their games as Master Compact compatible. Software for the Compact was comparatively expensive (typically £20 for a game) due to the much lower demand for the
494:
cartridge interface capabilities, supporting the use of physically compatible Electron cartridges, but also supporting enhanced electrical characteristics for some of the cartridge connector pins.
1043:
Internal image of a Master 128 showing Vine Micro Romboard4 fitted, meaning the cartridge slots can no longer be used – a non-standard cooling fan has also been added by the owner.
945:
In addition to the localisation of the system itself, various applications were localised for the PC128S including View, ViewSheet, ViewPlot, and ViewIndex, along with a number of games including
522:
this particular lithium battery arrangement, Acorn introduced a remedy involving its replacement with a different solution using three alkaline batteries fitted next to the power supply.
5111:
965:
started at 995,000 lire for a system with monochrome monitor or 1,295,000 lire with a colour monitor (equivalent to €1,205 and €1,568 respectively in 2020, adjusted for inflation).
4755:
557:. A disc interface was fitted, but the drives themselves were not included in the base product, these being offered by third parties and by Acorn as an official expansion.
1216:
Modes 0 to 6 could display a choice of colours from a logical palette of sixteen, though only eight physical colours could really be generated by the hardware: the eight
4748:
5472:
469:
Although chips such as the 6522 VIA and 6845 CRTC were retained in the Master series, much of the discrete logic of earlier models was consolidated into CMOS
5104:
736:
sold by Acorn as a complete system bundled with disk drive and monitor (and the first high-volume system from Acorn to do so, preceded by the unreleased
646:
graphical user interface. The coprocessor card was introduced at £499 as an upgrade to the Master 128, but its price was subsequently reduced to £399.
5467:
565:
This was a Master 128 with 4 MHz 65C102 coprocessor card (which could be either bought with the machine or added to an existing Master 128).
1066:
in the Master 128, Master Turbo, and Master 512. Comprising a 16 KB MOS (Machine Operating System), always accessible, and seven 16 KB
5097:
440:
upper memory for workspace made almost 29 KB available for normal programs and was said to "transform the machine" from its predecessors.
541:
The Master series consisted of several different models, all of which apart from the Master Compact were variants of the same basic design.
3317:
771:
resolution" and offered the traditional RGB monitor connector used by previous Acorn machines. However, the colour monitor also provided a
1171:
64 KB workspace accessible to user machine code applications (divided into up to four 16 KB regions to act like volatile paged ROMs)
3535:
4648:
3944:
5457:
3508:
1026:
119:
3189:
5031:
3785:
5320:
5218:
703:
The Master Scientific was announced at the time of the BBC Master's launch, but was not produced. It was to have an 8 MHz
573:
4916:
1820:
1141:
1092:
1004:
57:
4071:
1696:
344:
and system workspace. Another 64 KB was provided in the form of four 16 KB bank-switched pages of sideways RAM.
4161:
100:
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643:
72:
5286:
1490:
1085:
1000:
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53:
989:
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with its function configured in software. A Centronics printer interface was also provided. The 1 MHz bus and
783:
hardware not populated on the circuit board as standard. A multifunction mouse and joystick port was provided as a
716:
1122:
in the Master ET. Comprising a 16 KB MOS (Machine Operating System), always accessible, and three 16 KB
1008:
993:
79:
46:
3216:
3133:
1834:
1467:
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This was the "foundation of the new BBC range" when launched. The 128 in the name referred to its 128 KB of
264:
5452:
5415:
5410:
4790:
865:
729:
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The chip-count was also reduced vs. the rest of the Master range, via the use of 4x custom gate array chips.
5462:
5233:
4872:
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interface, installed by adding a module board and the ANFS ROM (fitted as standard to the Master ET machine)
737:
320:
214:
86:
3069:
5168:
5161:
4921:
4795:
1500:
1123:
1067:
1053:
3828:
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colours (black, red, green, yellow, blue, magenta, cyan, white) and the same colours in a flashing state;
720:
BBC Master Compact – both the keyboard (front) and under-monitor unit (rear) can be seen.
4026:
2569:
1710:
1574:
1559:
5010:
5005:
5000:
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intervals". Hence, it had no built-in real-time clock facility, although the time could be fetched via
609:
The ET (Econet Terminal) system was designed for use in a network and as such had no interfaces except
68:
5431:
1970:
1960:
1855:
1573:
a 20-pin IDC style "user port" consisting of eight general purpose digital I/O pins (and two special
1504:
1151:
788:
586:
550:
535:
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1980:
1965:
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range, one commentator considered it "one of the most exciting products Acorn has ever developed".
317:
219:
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749:
500:
436:
5044:
1130:
16 KB MOS extras (such as the cassette filing system and Sideways RAM utilities) in paged ROM 15
601:
included, an upgrade kit was also available to turn a normal BBC Master into a Domesday System.
4549:
316:
The Master series featured several improvements over earlier BBC Micro models. Rather than the
5384:
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4926:
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The Master AIV (Advanced Interactive Videodisc) was essentially a Master Turbo model with a
554:
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448:
284:
198:
1074:
16 KB Terminal emulator and MOS extras (such as the cassette filing system) in paged ROM 15
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Although the extra instructions of the 65C12 permitted slightly greater code density, the
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141:
93:
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interface and a VFS (Videodisc Filing System) ROM added, and formed the basis of the
250:
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Current and Historical Acorn Kit and Y2K: State of the Universe and Testing Strategy
5223:
5188:
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4719:
L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS
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L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS
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where available, being applied to ADFS file timestamps. As a result of this, the
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characters" – character codes in the range from 128 to 255 – from the keyboard.
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35:
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were named as being interested in releasing a version of the Master Compact in
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4073:
British Broadcasting Corporation Master Series Compact Computer Service Manual
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2015:
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908:
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17:
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3428:"If you purchased a Master 128 or ET between January-May 1986 please read on"
1546:" interface for internal or external second CPU (in the Master 512 model, an
779:
The cartridge and cassette ports were removed as a space saving measure, and
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British Broadcasting Corporation Master Series Microcomputer Service Manual
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under the Olivetti Prodest brand, subsequently announcing the model as the
846:
later BASIC ROM included the updated message (vs previous BBC BASIC ROMs):
429:
System workspace (function key, graphics system and character definitions)
1098:
16 KB Acorn Screen Editor AKA Edit (text/BBC BASIC editor) in paged ROM 11
1039:
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Four independent sound channels (one noise and three melodic) using the
4906:
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504:) included enhanced features which took advantage of the extra memory.
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aimed at the home and small business markets. Unlike the Compact, the
5192:
5049:
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1583:
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a 15-pin 'D shaped' port with four analogue inputs (suitable for two
1522:
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to retain details of the machine's configuration while powered off.
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reset key could be physically disabled by rotating a small plastic
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Functional Differences Between Master 128 and BBC Models B and B+
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later BBC games (and Master versions of earlier classics such as
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589:. Although normally supplied as part of a Domesday System, with
582:
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4744:
2753:
2683:
626:
also contained much less software than that of the Master 128.
5353:
2698:
2598:
2513:
2433:
972:
301:
29:
2923:
2608:
1603:
This character set was used in the BBC Master microcomputer.
3674:
3672:
2724:
2703:
2633:
2553:
2543:
2533:
2518:
2478:
2473:
1126:
ROMs, any one of which could be paged into memory at a time:
1070:
ROMs, any one of which could be paged into memory at a time:
2643:
4735:
3617:
3615:
3600:(Technical report). Acorn Computers Limited. 5 August 1992
2613:
634:
This system boasted a coprocessor card with a 10 MHz
3594:
Master 512: Applications Compatibility and Software List
2858:
2828:
2778:
2377:
2372:
2367:
2362:
2357:
2352:
2347:
2342:
2337:
2332:
2327:
2317:
2312:
2307:
2302:
2297:
2292:
2287:
2282:
2277:
2272:
2267:
2262:
2257:
2252:
2247:
2210:
2205:
2200:
2195:
2190:
2185:
2180:
2175:
2170:
2165:
2160:
2150:
2145:
2140:
2135:
2130:
2125:
2120:
2115:
2110:
2105:
2100:
2095:
2090:
2085:
2080:
1535:, four digital/contact ports (for buttons) and a special
1503:
interface (with motor control), using a variation of the
3946:
Acorn Computers Limited Retail Price List September 1987
3282:
3280:
3278:
3276:
3274:
3272:
3270:
3268:
2628:
2075:
1874:
1212:.) Eight graphics modes were provided by the system ROM:
387:
Shadow RAM (freeing conventional screen memory for use)
4079:. Acorn Computers Limited. October 1986. pp. 22–23
3028:
2998:
2948:
2878:
2848:
2808:
2803:
2793:
2773:
2768:
2758:
1867:
638:
and 512 KB memory. It also had the ability to run
3854:
3852:
3850:
3353:(Technical report). Acorn Computers Limited. p. 8
2798:
2783:
2763:
2693:
1888:
1881:
1832:
864:
The Compact included Acorn's first publicly available
3253:. Acorn Computers Limited. April 1986. pp. 15–18
3078:
3048:
3018:
2978:
2973:
2963:
2943:
2938:
2928:
2873:
2868:
2863:
2853:
2843:
2788:
2593:
1605:
938:
was bundled with a mouse, the Nidd Valley Digimouse.
435:
20 KB of this upper region could be assigned as
3952:. Acorn Computers Limited. September 1987. p. 1
3822:
3820:
3818:
3816:
3058:
2968:
2953:
2933:
2838:
2823:
2818:
2813:
2603:
2588:
2423:
1550:
was used; other options included a 3 MHz extra
308:. The Master 128 remained in production until 1993.
5424:
5403:
5341:
5305:
5274:
5267:
5201:
5153:
5127:
5029:
4964:
4948:
4939:
4886:
4831:
4824:
4778:
3969:
3967:
3913:
3911:
3909:
3537:
Acorn Computers Limited Retail Price List July 1986
3477:
3475:
3043:
3038:
3033:
3023:
3013:
2958:
2688:
2209:
2204:
2199:
2194:
2189:
2184:
2179:
2174:
2169:
2164:
2159:
2149:
2144:
2139:
2134:
2129:
2124:
2119:
2114:
2109:
2104:
2099:
2094:
2089:
2084:
2079:
1580:
generic expansion through the "1 MHz bus", and
280:
270:
260:
246:
234:
213:
197:
182:
164:
151:
60:. Unsourced material may be challenged and removed.
4098:Owen, Ann (January 1987). "Compaction Required?".
3560:
3558:
3068:
3008:
2993:
2988:
2983:
2623:
2508:
1528:display output for TV, RGB or 1v p-p video monitor
1200:Highly configurable graphics display based on the
900:-inch was the standard for the Master and earlier
327:, Master series models used the slightly improved
3053:
2903:
2376:
2371:
2366:
2361:
2356:
2351:
2346:
2341:
2336:
2331:
2326:
2316:
2311:
2306:
2301:
2296:
2291:
2286:
2281:
2276:
2271:
2266:
2261:
2256:
2251:
2246:
2224:
1818:
1804:
1757:
1729:
1197:, particularly useful in educational environments
300:in early 1986. It was designed and built for the
3793:. Acorn Computers Limited. July 1985. p. 5.
2391:
2214:
1811:
1694:
3543:. Acorn Computers Limited. July 1986. p. 1
2893:
2381:
1797:
1790:
1479:pluggable ROMs, directly or via cartridge slots
848:
4955:
4599:Olivetti Prodest PC 128 S - Prezzi al pubblico
2229:
2059:
1949:
408:Paged ROM workspace (filing system workspace)
5105:
4756:
4056:John, Kenneth (June 1989). "Compact Corner".
3184:
3182:
3180:
2458:
1944:
1909:
1825:
1783:
1673:
8:
4166:(Technical report). Acorn Computers Limited.
3809:(Technical report). Acorn Computers Limited.
2888:
2463:
2453:
2401:
2219:
1743:
134:
4479:ViewIndex - Per il PC 128 S - Guida all'uso
3888:"Will the real BBC Master please stand up?"
3381:(Technical report). Acorn Computers Limited
3240:
3238:
2448:
2049:
1914:
1750:
1736:
1599:Code page layout (BBC Master microcomputer)
1007:. Unsourced material may be challenged and
5271:
5112:
5098:
5090:
4945:
4828:
4763:
4749:
4741:
4602:. Olivetti Prodest S.p.A. 1 September 1986
4455:ViewPlot - Per il PC 128 S - Guida all'uso
4431:ViewSheet - Lo spreadsheet per il PC 128 S
3197:. Acorn Computers Limited. 1986. p. 2
2898:
2713:
2568:
2468:
2074:
2064:
1846:
1680:
140:
133:
3073:
3063:
2913:
2743:
2728:
2723:
2573:
1969:
1929:
1165:" video memory (paged over main user RAM)
1112:and Sideways RAM utilities in paged ROM 9
1027:Learn how and when to remove this message
830:commands returned dummy values. Only the
120:Learn how and when to remove this message
4407:View – Il word processor per il PC 128 S
4386:. Olivetti Prodest S.p.A. September 1986
3312:
3310:
3139:(Press release). Acorn Computers Limited
2738:
2583:
2054:
2029:
2024:
2004:
1924:
1919:
1708:
1687:
1239:
1190:
453:
350:
4667:
4665:
3919:"Taking the lid off the Master Compact"
3098:
3083:
2733:
2386:
2241:
2034:
2014:
2009:
1989:
1939:
1853:
1607:BBC Master microcomputer character set
1577:ones) mapped directly into the 6522 VIA
5473:Computer-related introductions in 1986
4114:"Compact sales revive after price cut"
3975:"Acorn packs Master into £399 Compact"
2718:
2044:
2019:
1999:
1994:
1974:
1959:
1934:
1764:
1722:
752:. The unit under the monitor housed a
553:, though it also featured 128 KB
5411:Adapters (IEEE488, Prestel, Teletext)
4252:"Acorn gives birth to Master Compact"
2231:
1954:
1771:
7:
1979:
1701:
1158:32 KB main user program/data storage
1005:adding citations to reliable sources
58:adding citations to reliable sources
4646:Reference Data Sheet:SAA5050 Series
4575:Doctor Who e le miniere del terrore
4330:Baldwin, Jonathan (February 1987).
4149:. No. 3. June 1989. p. 1.
2708:
1860:
1839:
1475:Built-in hardware support included:
1168:12 KB OS workspace (paged over ROM)
304:(BBC) and was the successor to the
4551:XOR – La sfida finale al labirinto
4383:Guida all'uso del systema PC 128 S
3925:. October 1986. pp. 15, 17–18
3375:BBC Master 128 Cartridge Interface
3132:Bottomley, Tracy (19 April 1993).
2908:
2883:
2396:
2039:
1964:
1900:
959:Doctor Who and the Mines of Terror
25:
4303:Atherton, David (February 1987).
4278:"Italian Compact set for success"
3859:Atherton, David (November 1986).
3787:Cambridge Co-Processor User Guide
1715:
1666:
1181:with a top row of ten red-orange
3861:"Master Compact Great and Small"
3649:Futcher, Dave (September 1990).
3567:"Master meets IBM – or does it?"
3159:"Acorn Kills off BBC Master 128"
1081:(word processor) in paged ROM 14
977:
302:British Broadcasting Corporation
34:
5321:Doctor Who: The First Adventure
3981:. October 1986. pp. 10, 11
3827:Taylor, Gordon (October 1986).
3565:Smith, Bruce (September 1986).
3516:. Acorn Computers Limited. 1986
3454:"Repeated Master fire warnings"
296:is a home computer released by
45:needs additional citations for
5468:BBC computer literacy projects
4578:. Olivetti Prodest S.p.A. 1987
4554:. Olivetti Prodest S.p.A. 1987
4530:. Olivetti Prodest S.p.A. 1987
4506:. Olivetti Prodest S.p.A. 1987
4482:. Olivetti Prodest S.p.A. 1986
4458:. Olivetti Prodest S.p.A. 1986
4434:. Olivetti Prodest S.p.A. 1986
4410:. Olivetti Prodest S.p.A. 1986
4362:. Olivetti Prodest S.p.A. 1987
3679:Futcher, Dave (January 1991).
3400:Atherton, David (March 1990).
3319:Open up to the world of MS-DOS
1135:Advanced Network Filing System
1:
5416:Second processors (6502, Z80)
5121:BBC Computer Literacy Project
3434:. September 1986. p. 142
3372:Bell, D. J. (3 August 1992).
3344:Bell, D. J. (3 August 1992).
1231:capability was provided by a
1105:(spreadsheet) in paged ROM 10
5359:Cambridge Systems Technology
5176:Making the Most of the Micro
4657:Teletext Character Generator
4120:. November 1987. p. 165
3886:Forer, Pip (November 1986).
3483:"Plug-in boards boost power"
3223:. March 1986. pp. 66–67
1517:serial communication (using
670:to work on the coprocessor.
534:The BBC Master as part of a
222:, optional second processor
5287:Advanced Disc Filing System
4622:"BBC Master Acorn Computer"
4232:. September 1989. p. 7
4147:Acorn Customer Service News
3706:Futcher, Dave (July 1991).
3489:. February 1986. p. 11
3333:– via Chris's Acorns.
3287:Smith, Bruce (March 1986).
1189:-style numeric keypad. The
1086:Advanced Disc Filing System
907:The machines were built by
742:Acorn Cambridge Workstation
170:; 38 years ago
5489:
5314:Doctor Who and the Warlord
4284:. November 1986. p. 7
4206:. October 1986. p. 11
4200:"Discs tie-in with launch"
3766:. November 1986. p. 7
3622:Futcher, Dave (May 1989).
3113:. February 1986. p. 7
5458:6502-based home computers
4258:. October 1986. p. 7
4033:. October 1987. p. 9
3806:PRODUCTS NUMBER 58 BABY B
3740:. January 1987. p. 7
3325:. Acorn Computers Limited
1468:Texas Instruments SN76489
1258:
1255:
1250:
1247:
1242:
1204:. Unlike on the original
919:Olivetti Prodest PC 128 S
265:Texas Instruments SN76489
139:
3760:"Acorn drops Scientific"
5404:BBC-branded peripherals
5154:TV programmes, services
5145:Archimedes range, A3000
4736:http://bbc.nvg.org/doc/
1510:parallel printer port (
738:Acorn Business Computer
517:Battery charging hazard
5169:The Computer Programme
5162:Now the Chips Are Down
4677:RISC OS 3.7 User Guide
4226:"New BBC home service"
3651:"Building up the Beeb"
3402:"Return of the Master"
3165:. June 1993. p. 7
1044:
862:
732:
721:
578:
538:
360:Physical address range
5380:Pace Micro Technology
4659:, July 1982, Mullard.
4007:. May 1990. p. 9
3460:. May 1987. p. 7
3134:"Sales News Issue 72"
3107:"Master: the new BBC"
1042:
727:
719:
576:
533:
363:Logical address range
220:MOS Technology 65SC12
5432:BBC Domesday Project
4949:8-bit microcomputers
4940:Derivatives, clones,
4651:3 March 2016 at the
1507:data encoding scheme
1505:Kansas City standard
1001:improve this section
146:Acorn BBC Master 128
54:improve this article
5395:Watford Electronics
4027:"Compact Companion"
1608:
886:-inch disk format (
728:The Master Compact
587:BBC Domesday System
536:BBC Domesday System
331:. Fabricated using
318:MOS Technology 6502
136:
5292:Disc Filing System
5244:Ian McNaught-Davis
5128:BBC microcomputers
4673:"BFont characters"
4338:. pp. 145–147
4311:. pp. 101–102
4177:BBC Basic versions
3867:. pp. 101–103
3687:. pp. 132–133
3630:. pp. 129–130
3573:. pp. 153–155
3408:. pp. 132–133
1606:
1110:Disc Filing System
1045:
961:. Pricing for the
750:Acorn Communicator
733:
722:
579:
539:
230:depending on model
5440:
5439:
5385:Superior Software
5365:Castle Technology
5337:
5336:
5219:Christopher Curry
5087:
5086:
5083:
5082:
5006:RiscStation R7500
4935:
4934:
4873:Business Computer
4779:Operating systems
4679:, 20 January 1997
4626:old-computers.com
4100:A&B Computing
4060:. pp. 19–20.
4058:A&B Computing
4031:A&B Computing
4001:"Compact Adaptor"
3833:A&B Computing
3191:The Master Series
3090:
3089:
1463:
1462:
1248:Resolution (X×Y)
1037:
1036:
1029:
870:Superior Software
699:Master Scientific
676:Ventura Publisher
593:player, Domesday
433:
432:
306:BBC Micro Model B
290:
289:
275:BBC Micro Model B
135:BBC Master Series
130:
129:
122:
104:
16:(Redirected from
5480:
5272:
5114:
5107:
5100:
5091:
4956:Prodest PC 128 S
4946:
4922:Network Computer
4897:Archimedes range
4829:
4765:
4758:
4751:
4742:
4723:
4722:
4721:, 4 January 2019
4716:
4708:
4702:
4701:
4700:, 4 January 2019
4695:
4687:
4681:
4680:
4669:
4660:
4643:
4637:
4636:
4634:
4632:
4618:
4612:
4611:
4609:
4607:
4594:
4588:
4587:
4585:
4583:
4570:
4564:
4563:
4561:
4559:
4546:
4540:
4539:
4537:
4535:
4522:
4516:
4515:
4513:
4511:
4498:
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4491:
4489:
4487:
4474:
4468:
4467:
4465:
4463:
4450:
4444:
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4439:
4426:
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4417:
4415:
4402:
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4393:
4391:
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4372:
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4369:
4367:
4354:
4348:
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4345:
4343:
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4321:
4320:
4318:
4316:
4300:
4294:
4293:
4291:
4289:
4274:
4268:
4267:
4265:
4263:
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4241:
4239:
4237:
4222:
4216:
4215:
4213:
4211:
4196:
4190:
4186:
4180:
4174:
4168:
4167:
4157:
4151:
4150:
4144:
4136:
4130:
4129:
4127:
4125:
4110:
4104:
4103:
4095:
4089:
4088:
4086:
4084:
4078:
4068:
4062:
4061:
4053:
4047:
4046:
4040:
4038:
4023:
4017:
4016:
4014:
4012:
3997:
3991:
3990:
3988:
3986:
3971:
3962:
3961:
3959:
3957:
3951:
3941:
3935:
3934:
3932:
3930:
3915:
3904:
3903:
3901:
3899:
3894:. pp. 38–41
3892:Bits & Bytes
3883:
3877:
3876:
3874:
3872:
3856:
3845:
3844:
3842:
3840:
3835:. pp. 12–17
3829:"Master Compact"
3824:
3811:
3810:
3801:
3795:
3794:
3792:
3782:
3776:
3775:
3773:
3771:
3756:
3750:
3749:
3747:
3745:
3730:
3724:
3723:
3721:
3719:
3703:
3697:
3696:
3694:
3692:
3676:
3667:
3666:
3664:
3662:
3646:
3640:
3639:
3637:
3635:
3619:
3610:
3609:
3607:
3605:
3599:
3589:
3583:
3582:
3580:
3578:
3562:
3553:
3552:
3550:
3548:
3542:
3532:
3526:
3525:
3523:
3521:
3515:
3505:
3499:
3498:
3496:
3494:
3479:
3470:
3469:
3467:
3465:
3450:
3444:
3443:
3441:
3439:
3424:
3418:
3417:
3415:
3413:
3397:
3391:
3390:
3388:
3386:
3380:
3369:
3363:
3362:
3360:
3358:
3352:
3341:
3335:
3334:
3332:
3330:
3324:
3314:
3305:
3304:
3302:
3300:
3295:. pp. 73–77
3284:
3263:
3262:
3260:
3258:
3252:
3242:
3233:
3232:
3230:
3228:
3217:"The master 128"
3213:
3207:
3206:
3204:
3202:
3196:
3186:
3175:
3174:
3172:
3170:
3155:
3149:
3148:
3146:
3144:
3138:
3129:
3123:
3122:
3120:
3118:
3103:
2406:
1907:
1893:
1886:
1879:
1872:
1865:
1858:
1851:
1844:
1837:
1830:
1823:
1816:
1809:
1802:
1795:
1788:
1776:
1769:
1762:
1755:
1748:
1741:
1734:
1727:
1720:
1713:
1706:
1699:
1692:
1685:
1678:
1671:
1609:
1521:, a superset of
1493:supported) with
1240:
1210:double buffering
1185: ƒ0–ƒ9 and
1032:
1025:
1021:
1018:
1012:
981:
973:
964:
937:
933:
899:
898:
894:
891:
885:
884:
880:
877:
860:
855:
829:
825:
813:
812:
808:
805:
765:
764:
760:
757:
426:
421:
405:
400:
384:
379:
351:
342:
285:Acorn Archimedes
199:Operating system
193:
191:
178:
176:
171:
144:
137:
125:
118:
114:
111:
105:
103:
62:
38:
30:
21:
5488:
5487:
5483:
5482:
5481:
5479:
5478:
5477:
5453:Acorn Computers
5443:
5442:
5441:
5436:
5420:
5399:
5390:Torch Computers
5349:Acorn Computers
5333:
5301:
5263:
5249:Richard Russell
5197:
5149:
5135:Models A, B, B+
5123:
5118:
5088:
5079:
5025:
4960:
4941:
4931:
4882:
4820:
4774:
4772:Acorn Computers
4769:
4732:
4727:
4726:
4714:
4710:
4709:
4705:
4693:
4689:
4688:
4684:
4671:
4670:
4663:
4653:Wayback Machine
4644:
4640:
4630:
4628:
4620:
4619:
4615:
4605:
4603:
4596:
4595:
4591:
4581:
4579:
4572:
4571:
4567:
4557:
4555:
4548:
4547:
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4533:
4531:
4524:
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4519:
4509:
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4437:
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4428:
4427:
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4411:
4404:
4403:
4399:
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4341:
4339:
4329:
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4324:
4314:
4312:
4302:
4301:
4297:
4287:
4285:
4276:
4275:
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4261:
4259:
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4233:
4224:
4223:
4219:
4209:
4207:
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4197:
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4183:
4175:
4171:
4159:
4158:
4154:
4142:
4138:
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4133:
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4112:
4111:
4107:
4097:
4096:
4092:
4082:
4080:
4076:
4070:
4069:
4065:
4055:
4054:
4050:
4036:
4034:
4025:
4024:
4020:
4010:
4008:
3999:
3998:
3994:
3984:
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3973:
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3965:
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3949:
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3907:
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3870:
3868:
3858:
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3826:
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3814:
3803:
3802:
3798:
3790:
3784:
3783:
3779:
3769:
3767:
3758:
3757:
3753:
3743:
3741:
3732:
3731:
3727:
3717:
3715:
3708:"Filing a Suit"
3705:
3704:
3700:
3690:
3688:
3678:
3677:
3670:
3660:
3658:
3648:
3647:
3643:
3633:
3631:
3624:"DOS Solutions"
3621:
3620:
3613:
3603:
3601:
3597:
3591:
3590:
3586:
3576:
3574:
3564:
3563:
3556:
3546:
3544:
3540:
3534:
3533:
3529:
3519:
3517:
3513:
3510:Disc Drive Unit
3507:
3506:
3502:
3492:
3490:
3481:
3480:
3473:
3463:
3461:
3452:
3451:
3447:
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3342:
3338:
3328:
3326:
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3316:
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3308:
3298:
3296:
3286:
3285:
3266:
3256:
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3250:
3244:
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3236:
3226:
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3215:
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3210:
3200:
3198:
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3142:
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3116:
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3105:
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3095:
2402:
1901:
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1875:
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1716:
1709:
1702:
1695:
1688:
1681:
1674:
1667:
1601:
1592:
1589:
1497:disc controller
1271:
1252:
1244:
1238:
1233:Mullard SAA5050
1192:
1174:
1147:
1144:in paged ROM 13
1137:in paged ROM 14
1115:
1095:in paged ROM 12
1088:in paged ROM 13
1033:
1022:
1016:
1013:
998:
982:
971:
962:
935:
931:
921:
896:
892:
889:
887:
882:
878:
875:
873:
861:
859:
854:& R.A. Sack
850:
827:
823:
810:
806:
803:
801:
762:
758:
755:
753:
740:and low-volume
714:
701:
632:
615:Composite video
607:
571:
563:
547:
528:
519:
510:
455:
424:
419:
403:
398:
382:
377:
337:
314:
298:Acorn Computers
255:Mullard SAA5050
189:
187:
174:
172:
169:
147:
126:
115:
109:
106:
63:
61:
51:
39:
28:
23:
22:
15:
12:
11:
5:
5486:
5484:
5476:
5475:
5470:
5465:
5463:Home computers
5460:
5455:
5445:
5444:
5438:
5437:
5435:
5434:
5428:
5426:
5425:Other projects
5422:
5421:
5419:
5418:
5413:
5407:
5405:
5401:
5400:
5398:
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5392:
5387:
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5300:
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5294:
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5276:
5269:
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5262:
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5241:
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5229:Hermann Hauser
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5216:
5211:
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5199:
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5186:
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5027:
5026:
5024:
5023:
5018:
5013:
5008:
5003:
4998:
4993:
4988:
4985:BeagleBoard-xM
4981:
4978:BeagleBoard-xM
4974:
4968:
4966:
4962:
4961:
4959:
4958:
4952:
4950:
4943:
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4909:
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4893:
4891:
4884:
4883:
4881:
4880:
4875:
4870:
4865:
4860:
4854:
4849:
4847:Systems 2 to 5
4844:
4838:
4836:
4834:microcomputers
4826:
4822:
4821:
4819:
4818:
4813:
4808:
4803:
4798:
4793:
4788:
4782:
4780:
4776:
4775:
4770:
4768:
4767:
4760:
4753:
4745:
4739:
4738:
4731:
4730:External links
4728:
4725:
4724:
4703:
4682:
4661:
4638:
4613:
4589:
4565:
4541:
4517:
4493:
4469:
4445:
4421:
4397:
4373:
4349:
4332:"Articulation"
4322:
4305:"Jump for Joy"
4295:
4269:
4243:
4217:
4191:
4181:
4169:
4160:Walker, Dave.
4152:
4131:
4105:
4102:. p. 100.
4090:
4063:
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2018:
2013:
2008:
2003:
1998:
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1988:
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1968:
1963:
1958:
1953:
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1587:
1581:
1578:
1571:
1540:
1529:
1526:
1515:
1508:
1498:
1489:and the newer
1480:
1476:
1473:
1464:
1461:
1460:
1457:
1456:0x7C00–0x7FFF
1454:
1451:
1448:
1445:
1442:
1438:
1437:
1434:
1433:0x6000–0x7FFF
1431:
1428:
1425:
1422:
1419:
1415:
1414:
1411:
1410:0x5800–0x7FFF
1408:
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1399:
1396:
1392:
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1388:
1387:0x5800–0x7FFF
1385:
1382:
1379:
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1369:
1368:
1365:
1364:0x4000–0x7FFF
1362:
1359:
1356:
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1346:
1345:
1342:
1341:0x3000–0x7FFF
1339:
1336:
1333:
1330:
1327:
1323:
1322:
1319:
1318:0x3000–0x7FFF
1316:
1313:
1310:
1307:
1304:
1300:
1299:
1296:
1295:0x3000–0x7FFF
1293:
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1273:
1268:
1265:
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1257:
1254:
1249:
1246:
1237:
1236:
1235:Teletext chip.
1225:
1221:
1213:
1198:
1175:
1173:
1172:
1169:
1166:
1159:
1155:
1148:
1146:
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1138:
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1127:
1116:
1114:
1113:
1106:
1099:
1096:
1089:
1082:
1079:Acornsoft View
1075:
1071:
1060:
1046:
1035:
1034:
985:
983:
976:
970:
969:Specifications
967:
920:
917:
857:
713:
712:Master Compact
710:
700:
697:
662:and Borland's
631:
628:
606:
603:
597:, monitor and
577:BBC Master AIV
570:
567:
562:
559:
546:
543:
527:
524:
518:
515:
509:
506:
489:Acorn Electron
431:
430:
427:
422:
417:
414:
410:
409:
406:
401:
396:
393:
389:
388:
385:
380:
375:
372:
368:
367:
364:
361:
358:
355:
321:microprocessor
313:
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179:
166:
162:
161:
153:
149:
148:
145:
128:
127:
42:
40:
33:
26:
24:
18:BBC Master 512
14:
13:
10:
9:
6:
4:
3:
2:
5485:
5474:
5471:
5469:
5466:
5464:
5461:
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5448:
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5430:
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5329:
5325:
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5322:
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5315:
5311:
5310:
5308:
5304:
5298:
5295:
5293:
5290:
5288:
5285:
5283:
5280:
5279:
5277:
5273:
5270:
5266:
5260:
5259:Sophie Wilson
5257:
5255:
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5245:
5242:
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5230:
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5110:
5108:
5103:
5101:
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5022:
5019:
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5012:
5009:
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5004:
5002:
4999:
4997:
4994:
4992:
4989:
4986:
4982:
4979:
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4969:
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4963:
4957:
4954:
4953:
4951:
4947:
4944:
4938:
4928:
4925:
4923:
4920:
4918:
4915:
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4910:
4908:
4905:
4903:
4900:
4898:
4895:
4894:
4892:
4890:
4885:
4879:
4876:
4874:
4871:
4869:
4866:
4864:
4861:
4858:
4855:
4853:
4850:
4848:
4845:
4843:
4842:Microcomputer
4840:
4839:
4837:
4835:
4830:
4827:
4823:
4817:
4814:
4812:
4809:
4807:
4804:
4802:
4799:
4797:
4794:
4792:
4789:
4787:
4784:
4783:
4781:
4777:
4773:
4766:
4761:
4759:
4754:
4752:
4747:
4746:
4743:
4737:
4734:
4733:
4729:
4720:
4713:
4712:"RISCOSB.TXT"
4707:
4704:
4699:
4692:
4686:
4683:
4678:
4674:
4668:
4666:
4662:
4658:
4654:
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4639:
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4614:
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4600:
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4457:
4456:
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4398:
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3808:
3807:
3800:
3797:
3789:
3788:
3781:
3778:
3765:
3761:
3755:
3752:
3739:
3735:
3734:"M512 U-turn"
3729:
3726:
3714:. p. 117
3713:
3709:
3702:
3699:
3686:
3682:
3675:
3673:
3669:
3657:. p. 123
3656:
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3294:
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3289:"Master Work"
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1570:, and others)
1569:
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1542:proprietary "
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1202:Motorola 6845
1199:
1196:
1188:
1184:
1183:function keys
1180:
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986:This section
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913:Hertfordshire
910:
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425:0x8000–0x8FFF
423:
420:0x8000–0x8FFF
418:
415:
412:
411:
407:
404:0xC000–0xDFFF
402:
399:0x9000–0xAFFF
397:
394:
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383:0x3000–0x7FFF
381:
378:0xB000–0xFFFF
376:
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251:Motorola 6845
249:
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167:
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159:Microcomputer
157:
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124:
121:
113:
102:
99:
95:
92:
88:
85:
81:
78:
74:
71: –
70:
66:
65:Find sources:
59:
55:
49:
48:
43:This article
41:
37:
32:
31:
27:Microcomputer
19:
5328:White Knight
5326:
5319:
5312:
5224:Steve Furber
5189:Telesoftware
5181:
5174:
5167:
5160:
5140:Master range
5139:
5065:Raspberry Pi
4877:
4868:Communicator
4718:
4706:
4697:
4691:"ReadMe.txt"
4685:
4676:
4656:
4641:
4629:. Retrieved
4625:
4616:
4604:. Retrieved
4598:
4592:
4580:. Retrieved
4574:
4568:
4556:. Retrieved
4550:
4544:
4532:. Retrieved
4526:
4520:
4508:. Retrieved
4502:
4496:
4484:. Retrieved
4478:
4472:
4460:. Retrieved
4454:
4448:
4436:. Retrieved
4430:
4424:
4412:. Retrieved
4406:
4400:
4388:. Retrieved
4382:
4376:
4364:. Retrieved
4358:
4352:
4340:. Retrieved
4335:
4325:
4313:. Retrieved
4308:
4298:
4286:. Retrieved
4281:
4272:
4260:. Retrieved
4255:
4246:
4234:. Retrieved
4229:
4220:
4208:. Retrieved
4203:
4194:
4184:
4172:
4162:
4155:
4146:
4134:
4122:. Retrieved
4117:
4108:
4099:
4093:
4081:. Retrieved
4072:
4066:
4057:
4051:
4042:
4035:. Retrieved
4030:
4021:
4009:. Retrieved
4004:
3995:
3983:. Retrieved
3978:
3954:. Retrieved
3945:
3939:
3927:. Retrieved
3922:
3896:. Retrieved
3891:
3881:
3869:. Retrieved
3864:
3837:. Retrieved
3832:
3805:
3799:
3786:
3780:
3768:. Retrieved
3763:
3754:
3742:. Retrieved
3737:
3728:
3716:. Retrieved
3711:
3701:
3689:. Retrieved
3684:
3659:. Retrieved
3654:
3644:
3632:. Retrieved
3627:
3602:. Retrieved
3593:
3587:
3575:. Retrieved
3570:
3545:. Retrieved
3536:
3530:
3518:. Retrieved
3509:
3503:
3491:. Retrieved
3486:
3462:. Retrieved
3457:
3448:
3436:. Retrieved
3431:
3422:
3410:. Retrieved
3405:
3395:
3383:. Retrieved
3374:
3367:
3355:. Retrieved
3346:
3339:
3327:. Retrieved
3318:
3297:. Retrieved
3292:
3255:. Retrieved
3246:
3225:. Retrieved
3220:
3211:
3199:. Retrieved
3190:
3167:. Retrieved
3162:
3153:
3141:. Retrieved
3127:
3115:. Retrieved
3110:
3101:
1602:
1593:
1177:Full-travel
1023:
1014:
999:Please help
987:
958:
954:
950:
946:
944:
940:
922:
906:
863:
852:Roger Wilson
849:
844:
841:
837:
816:
798:
794:
785:9-pin D type
778:
746:
734:
702:
689:
672:
668:Turbo Prolog
656:
648:
633:
608:
580:
564:
561:Master Turbo
548:
540:
520:
511:
499:
496:
485:
476:
467:
463:
446:
442:
434:
366:Description
346:
323:used by the
315:
293:
291:
242:–512 KB
183:Discontinued
165:Release date
131:
116:
107:
97:
90:
83:
76:
69:"BBC Master"
64:
52:Please help
47:verification
44:
5375:Micro Power
5254:Chris Serle
5239:Lesley Judd
5234:Fred Harris
5209:David Allen
5040:BeagleBoard
4942:compatibles
4917:Set-Top Box
4288:5 September
4262:5 September
3985:5 September
3929:5 September
3770:5 September
1575:handshaking
1514:compatible)
1483:floppy disc
1264:Char cells
768:floppy disk
680:WordPerfect
636:Intel 80186
599:trackerball
591:LaserVision
508:ROM upgrade
271:Predecessor
224:Intel 80186
206:, optional
5447:Categories
5183:Micro Live
5070:Touch Book
5060:PandaBoard
5045:DevKit8000
5032:dev boards
4965:32-bit PCs
4878:BBC Master
4336:Acorn User
4309:Acorn User
4282:Acorn User
4256:Acorn User
4236:1 November
4230:Acorn User
4210:1 November
4204:Acorn User
4189:Liverpool.
4118:Acorn User
4037:4 November
4011:1 November
4005:Acorn User
3979:Acorn User
3923:Acorn User
3871:28 October
3865:Acorn User
3839:5 November
3764:Acorn User
3744:25 October
3738:Acorn User
3712:Acorn User
3685:Acorn User
3655:Acorn User
3628:Acorn User
3577:25 October
3571:Acorn User
3547:25 October
3520:30 January
3493:25 October
3487:Acorn User
3464:26 January
3458:Acorn User
3438:26 January
3432:Acorn User
3406:Acorn User
3329:7 February
3293:Acorn User
3257:10 October
3201:10 October
3163:Acorn User
3143:10 October
3117:25 October
3111:Acorn User
3093:References
1512:Centronics
1471:sound chip
1447:480 × 500
1424:320 × 200
1401:160 × 256
1378:320 × 256
1355:640 × 200
1332:160 × 256
1309:320 × 256
1286:640 × 256
1256:Video RAM
1017:March 2023
909:Rank Xerox
693:Archimedes
630:Master 512
617:, plus an
595:videodiscs
569:Master AIV
545:Master 128
471:gate array
437:shadow RAM
374:20 KB
294:BBC Master
168:Early 1986
110:March 2023
80:newspapers
5342:Companies
5297:BBC BASIC
5282:Acorn MOS
5214:John Coll
4987:in Kiste)
4857:BBC Micro
4825:Computers
4786:Acorn MOS
3681:"Easy PC"
1558:for e.g.
1556:Zilog Z80
1537:Light pen
1533:joysticks
1413:Graphics
1390:Graphics
1344:Graphics
1321:Graphics
1298:Graphics
1227:Mode 7's
1206:BBC Micro
1142:BBC BASIC
1103:ViewSheet
1093:BBC BASIC
1059:processor
988:does not
902:BBC Micro
660:dBase III
622:internal
605:Master ET
416:4 KB
395:8 KB
338:128
281:Successor
238:128
204:Acorn MOS
5268:Software
5021:Titanium
4976:ARMini (
4863:Electron
4859:(Proton)
4649:Archived
4140:"EEPROM"
4044:machine.
3898:25 March
3604:31 March
3385:31 March
3357:31 March
1444:40 × 25
1421:40 × 25
1398:20 × 32
1375:40 × 32
1352:80 × 25
1329:20 × 32
1306:40 × 32
1283:80 × 32
1253:colours
1251:Hardware
1243:Graphics
1229:Teletext
1179:keyboard
1124:sideways
1068:sideways
1054:Rockwell
963:PC 128 S
936:PC 128 S
932:PC 128 S
924:Olivetti
858:—
789:analogue
684:dBase IV
682:5.0 and
642:and the
640:DOS Plus
459:CMOS RAM
354:Codename
247:Graphics
208:DOS Plus
5306:BBCSoft
5055:Pandora
5030:32-bit
4907:Risc PC
4887:32-bit
4811:Galileo
4806:RISC OS
4801:RISC iX
4606:17 June
4582:17 June
4558:17 June
4534:17 June
4510:17 June
4503:Aviator
4486:17 June
4462:17 June
4438:17 June
4414:17 June
4390:17 June
4366:17 June
4359:Project
4342:17 June
4315:17 June
4124:30 June
3227:13 June
3169:15 June
1564:NS32016
1267:Pixels
1161:20 KB "
1150:128 KB
1062:128 KB
1057:R65SC12
1009:removed
994:sources
947:Aviator
895:⁄
881:⁄
809:⁄
761:⁄
664:Turbo C
325:Model B
188: (
173: (
94:scholar
5370:Cumana
5202:People
5193:Ceefax
5050:IGEPv2
5016:Iyonix
4972:A9home
4927:Phoebe
4832:8-bit
4631:25 May
4083:27 May
3956:21 May
3718:3 June
3691:11 May
3299:26 May
2900:|
1906:
1902:
1584:Econet
1523:RS-232
1519:RS-423
1495:WD1770
1163:shadow
1140:16 KB
1133:16 KB
1118:64 KB
1108:16 KB
1101:16 KB
1091:16 KB
1084:16 KB
1077:16 KB
957:, and
828:TIME$
820:Econet
781:RS-232
766:-inch
652:PC DOS
619:Econet
526:Models
492:Plus 1
454:TIME$
312:Design
235:Memory
228:65C102
96:
89:
82:
75:
67:
5361:(CST)
5275:Acorn
5075:i.MX6
4991:Omega
4983:BIK (
4912:A7000
4791:Panos
4715:(PDF)
4694:(PDF)
4143:(PDF)
4077:(PDF)
3950:(PDF)
3791:(PDF)
3661:8 May
3634:4 May
3598:(PDF)
3541:(PDF)
3514:(PDF)
3412:7 May
3379:(PDF)
3351:(PDF)
3323:(PDF)
3251:(PDF)
3195:(PDF)
3137:(PDF)
1936:&
1566:, an
1562:, an
1548:80186
1539:input
1459:Text
1436:Text
1367:Text
1272:(KB)
1259:Type
1245:mode
1191:BREAK
928:Italy
824:*TIME
773:SCART
705:32016
501:Elite
392:HAZEL
371:LYNNE
329:65C12
261:Sound
156:8-bit
101:JSTOR
87:books
5191:via
5001:Medi
4996:Mico
4852:Atom
4816:NCOS
4633:2023
4608:2022
4584:2022
4560:2022
4536:2022
4527:Revs
4512:2022
4488:2022
4464:2022
4440:2022
4416:2022
4392:2022
4368:2022
4344:2022
4317:2022
4290:2020
4264:2020
4238:2020
4212:2020
4126:2022
4085:2023
4039:2020
4013:2020
3987:2020
3958:2023
3931:2020
3900:2021
3873:2020
3841:2020
3772:2020
3746:2020
3720:2021
3693:2021
3663:2021
3636:2021
3606:2021
3579:2020
3549:2020
3522:2021
3495:2020
3466:2024
3440:2024
3414:2021
3387:2021
3359:2021
3331:2021
3301:2023
3259:2020
3229:2023
3203:2020
3171:2021
3145:2020
3119:2020
2061:>
2051:<
1568:ARM1
1560:CP/M
1554:, a
1552:6502
1544:Tube
1501:tape
1491:ADFS
1275:map
1270:used
992:any
990:cite
951:Revs
832:ADFS
826:and
666:and
613:and
583:SCSI
480:Tube
413:ANDY
357:Size
333:CMOS
292:The
190:1994
186:1994
175:1986
152:Type
73:news
5354:BBC
5011:A75
4889:PCs
4796:ARX
3006:Fx
2921:Ex
2836:Dx
2751:Cx
2666:Bx
2581:Ax
2496:9x
2411:8x
2404:DEL
2324:7x
2239:6x
2157:5x
2072:4x
1987:3x
1898:2x
1863:ESC
1856:SUB
1842:CAN
1835:ETB
1828:SYN
1821:NAK
1814:DC4
1807:DC3
1800:DC2
1793:DC1
1786:DLE
1781:1x
1718:BEL
1711:ACK
1704:ENQ
1697:EOT
1690:ETX
1683:STX
1676:SOH
1669:NUL
1664:0x
1487:DFS
1407:10
1384:10
1361:16
1338:20
1315:20
1292:20
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