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Last modified 2013-01-22

BBC Micro A

Type:8-bit home and educational computer
CPU:MOS 6502A @ 2 MHz
Operating system:Acorn MOS
Memory:ROM: 32 KB
RAM: 16 KB
Sound:4 channels (1 noise, 3 melodic) with a SN76489 chip
Optional speech synthesis with the TMS5220 and TMS6100 chips
Graphics:Motorola 6845 CRT controller and Mullard SAA5050 teletext chip
Mode 6: 40*25 characters, 2 colors
Mode 7: 40*25 characters (Teletext), 8 colors
Mode 4: 320*256 pixels, 2 colors
Mode 5: 160*256 pixels, 4 colors
Storage:Tape recorder (300/1200 bd)
Optional floppy
Input:Integrated keyboard
Connectivity:Composite out
TV out (PAL)
Tape recorder I/O
Optional RS-423 port
Optional Centronics parallel port
Optional 20-pin user port
Optional analog I/O port
Optional 1 MHz expansion port
Optional external second CPU connector (The "Tube")
Optional Econet network I/F (100 KBit/s)
Power consumption:
Dimensions (W*H*D):? mm (?")
Weight:? Kg (? lbs)
Manufactured:1981-1983 (Discontinued)
Other:Introduction price 1981 in the UK: 235.00
Related documents:
Notable "ham" software: