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BBC Master Compact

Acorn (United Kingdom)

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Name BBC Master Compact Acorn 
Manufacturer Acorn (United Kingdom) Type Desktop
Production start (mm-yyyy) 9 - 1986 Production end (mm-yyyy) -
RAM 128Kb ROM 64Kb
CPU 65C12 - 2 Mhz
Operating System
Text (Cols x Rows) 20x32, 20x32x8, 40x25x2, 40x25x8, 40x32, 40x32x4, 80x25x2, 80x32x2
Graphics 160x256x4, 160x256x8, 320x256x2, 320x256x4, 640x256x2
Sound 3 channles SN76489
Storage memory Tape, Floppy 360Kb
Serial port Parallel port
Others port Analogue Joystick/Mouse, BBC High Speed Bus, Composite video, Econet, Floppy, Parallel, RGB, RS-423, TV output, Tape recorder, Tube expansion, User port
Original price   Currency original price
Units sold
Note The Master Compact, released in September 1986, is built into two units - the main machine and the monitor stand. The monitor stand unit also had the 3.5" floppy drive and PSU for the main machine. The Compact was the first BBC not to have the interface for the cassette filing system (and issuing a *TAPE was ignored). 
Configurations Of the 128Kb of RAM, 64Kb are the 'main' RAM. The other 64Kb are "Sideways" RAM (four 16Kb pages).
The 64Kb of ROM contains the Operating System (32Kb), the BBC BASIC v 4 (1986) (16Kb), and the ADFS (Advanced Disc Filing System) (16Kb) 
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