BBC Micro B+128
SPECIFICATIONS
| Type: | 8-bit home and educational computer |
| CPU: | Rockwell R6512A @ 2 MHz |
| Operating system: | Acorn MOS |
| Memory: | ROM: 48 KB
RAM: 128 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
Text:
Mode 3: 80*25 characters, 2 colors
Mode 6: 40*25 characters, 2 colors
Mode 7: 40*25 characters (Teletext), 8 colors
Graphics
Mode 0: 640*256 pixels, 2 colors
Mode 1: 320*256 pixels, 4 colors
Mode 2: 160*256 pixels, 8 colors
Mode 4: 320*256 pixels, 2 colors
Mode 5: 160*256 pixels, 4 colors |
| Storage: | Tape recorder (300/1200 bd)
Optional floppy and hard drives |
| Input: | N/A |
| Connectivity: | RGB out
Composite out
TV out (PAL)
Tape recorder I/O
RS-423 port
Centronics parallel port
20-pin user port
Analog I/O port
1 MHz expansion port
External second CPU connector (The "Tube")
Optional Econet network I/F (100 KBit/s) |
| Voltage: | |
| Power consumption: | |
| Dimensions (W*H*D): | ? mm (?") |
| Weight: | ? Kg (? lbs) |
| Manufactured: | 1985-19xx (Discontinued) |
| Other: | |
| Related documents: | |
| Modifications: | |
| Notable "ham" software: | |
|
