This is the Acorn BBC Master, the sucessor to the famous Model B. The Master brought many improvements including more memory, 4 sound channels, twin cartridge sockets, and several built-in ROM software packages. The main problem with the Master was the fact that many B model software didn’t run correctly.
Because of that th model I bought is highly customized. It has a ROM selector switch that allows me to boot from OS 1.2, OS 2.0 and MOS 3.5. That way I can change the mode based on what software I want to run. My computer also came with a 500 MByte Compact Flash Hard Drive and best of all, a S-Video output connector while allows me to avoid all the weird SCART workarounds. I also got a regular 5.25″ floppy drive because a lot of older software does not run correctly from the hard disk – you have to burn it to floppies and boot from it.
The case and keyboard on this computer are in great shape. The thing looks like a tank and it was not easy to import from the UK. Luckly I found a guy in Manchester who worked with me on it. I do have to say that the games overall don’t look as good as some of the contemporary rivals (like MSX) but they are still lots of fun. The BBC Basic is very powerful though, much more than the usual MS Basic of that time. This is just an awesome addition to my collection.
|END OF PRODUCTION||1993|
|BUILT IN LANGUAGE||BBC BASIC IV
|KEYBOARD||Full stroke 93 key with
numeric keypad and 10 function keys
|CPU||65C102 (an evolution of the
|ROM||128 KB (Expandable)|
|TEXT MODES||40/80 x 25 lines, 20/40/80 x
32, Teletex mode (40 x 25 x 8 colours)
|GRAPHIC MODES||160/320/640 x 256 dots in 2 to
|COLORS||8 among 16|
|SOUND||4 chanels, 8 octaves – SN76489
|SIZE||46.7 x 34.5 (D) x 7.5 (H)
|I/O PORTS||Tube expansion, BBC High Speed
Bus, FDD interface, User interface, RS423 serial, Analog, Econet network,
Parallel, tape recorder, TV/RF, RGB & Composite outputs, S-Video (custom for my machine)
|BUILT IN MEDIA||Cassette & FDD
|OS||OS 1.2, OS 2.0 and MOS 3.5 (via custom ROM switch)|
|POWER SUPPLY||Built-in switching power
|PERIPHERALS||External FDD unit, processor