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BBC Micro Model B+ 128K

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Configurations
  9. Dipswitchs
  10. Roms list
  11. BIOS set
  12. Chips list
  13. Categories
  14. History
Download bbcbp128.zip (0 B)
Snapshot

Game infos

Description BBC Micro Model B+ 128K
Name bbcbp128
Manufacturer Acorn
Year 1985
Runnable yes
System arcade /
Number of players Non-arcade
Added to MAME .037b08
Romset size 0 B
Romset file files
Romset zip 0 B
Genre Computer

Parent and clones

Parent bbcbp : BBC Micro Model B+ 64K (1985)

Sound infos

Sound_channels 3

Driver infos

Driver status imperfect
Driver emulation good
Driver color good
Driver sound good
Driver graphic imperfect
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt no
Input players 2
Input buttons
Input coins

Controls infos

type ways minimum maximum sensitivity keydelta reverse
keyboard no
stick 0 255 100 2 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 640 256 50

Configuration

name tag mask
Monitor
Name Amber
Value 3
Default no
Name B&W
Value 1
Default no
Name Colour
Value 0
Default yes
Name Green
Value 2
Default no

BBCCONFIG
3
Speech Fitted
Name No
Value 0
Default no
Name Yes
Value 4
Default yes

BBCCONFIG
4

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade adfs130.rom 16384 d3855588 adfs130.rom 301fd05c475a629c4bec70510d4507256a5b00d8 option 14000 good no
arcade bpos2.ic71 os20 32768 9f356396 bpos2.ic71 ea7d3a7e3ee1ecfaa1483af994048057362b01f2 option 3c000 good no
arcade ddfs223.rom 16384 7891f9b7 ddfs223.rom 0d7ed0b0b3852cb61970ada1993244f2896896aa option 1c000 good no
arcade phroma.bin 16384 98e1bf9e phroma.bin b369809275cb67dfd8a749265e91adb2d2558ae6 vsm 0 good no

BIOS set

name description default
os20 OS 2.00 yes

Chips list

name tag type clock
Floppy sound wd1770:1:525qd:floppysound audio 44100
M6502 maincpu cpu 2000000
SN76489 sn76489 audio 4000000
Speaker wd1770:1:525qd:flopsndout audio
TMS5220 tms5220 audio 640000

Categories

History


Computer published 38 years ago:

BBC Micro (c) 1981 Acorn Computer, Limited.

- TRIVIA -

During the early 1980s, the BBC started what became known as the BBC Computer Literacy Project. The project was initiated partly in response to an extremely influential ITV documentary series The Mighty Micro, in which Dr Christopher Evans of the UK's National Physical Laboratory predicted the coming microcomputer revolution and its effect on the economy, industry, and lifestyle of the UK.

The BBC wanted to base its project on a microcomputer capable of performing various tasks which they could then demonstrate in their 1982 TV series The Computer Programme. The list of topics included programming, graphics, sound and music, teletext, controlling external hardware and artificial intelligence. It decided to adopt a microcomputer brand, then developed a fairly ambitious (for its time) specification and asked for takers. The BBC discussed the requirement with several companies including Sinclair Research, Newbury Laboratories, Dragon Data and Acorn Computers.

The Acorn team had already been working on an upgrade to their existing Atom microcomputer. Known as the Proton, it included better graphics and a faster 2 MHz MOS Technology 6502 central processing unit. The machine was only at the design stage at the time, and the Acorn team, composed largely of students including Steve Furber and Sophie Wilson, had one week to build a working prototype from the sketched designs. The team worked through the night to get a working Proton together to show the BBC. Not only was the Acorn Proton the only machine to match the BBC's specification, it also exceeded it in nearly every parameter.

The machine was released as the BBC Microcomputer on 1 December 1981 and became known affectionately as the Beeb. The machine was popular in the UK, especially in the educational market: about 80 per cent of British schools had a BBC microcomputer. As with Sinclair's ZX Spectrum and Commodore's C64, both released later in 1982, demand greatly exceeded supply. For some months, there were long delays before customers received the machines they had ordered. Efforts were made to market the machine in the United States and Germany.
By October 1983, the US operation reported that American schools had placed orders with it totalling $21 million.
In October 1984, while preparing a major expansion of its US dealer network, Acorn claimed sales of 85 per cent of the computers in British schools, and delivery of 40,000 machines per month.
That December, Acorn stated its intention to become the market leader in US educational computing. The New York Times considered the inclusion of local area networking to be of prime importance to teachers. The operation resulted in advertisements by at least one dealer in Interface Age magazine, but ultimately the attempt failed. The success of the machine in the UK was due largely to its acceptance as an educational computer – UK schools used BBC Micros to teach computer literacy, information technology skills and a generation of games programmers. Acorn became more known for its model B computer than for its other products. Some Commonwealth countries, including India, started their own Computer Literacy programs around 1987 and used the BBC Micro, a clone of which was produced by the Semiconductor Complex Limited and named the SCL Unicorn.

An advantage for the BBC Micro in the educational market was its durable construction. Both casing and keyboard were built solidly and able to cope with abuse by schoolchildren.

The Model A and the Model B were priced initially at £235 and £335 respectively, but increasing almost immediately to £299 and £399 due to increased costs. Acorn anticipated the total sales to be around 12,000 units, but eventually more than 1.5 million BBC Micros were sold.

The cost of the BBC Models was high compared to competitors such as the ZX Spectrum and the C64, and from 1983 Acorn attempted to counter this by producing a simplified but largely compatible version intended for game playing, the 32K Acorn Electron.

- CONTRIBUTE -

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