Back to main

Back to Vintage computers

Next computer








Last modified 2012-08-02

Commodore 128D

SPECIFICATIONS
Type:8-bit home computer
CPU:MOS 8502 @ 1-2 MHz & Zilog Z80A @ 4 MHz
Operating system:Commodore Basic 7.0 & CP/M 3.0
Memory:ROM: 72 KB
RAM: 128 KB (2*64 KB banks). Expandable to 512 KB
Sound:"SID" - MOS 8580
3 voices, multimode filter, 3 ring modulators. Stereo
Graphics:"VIC-II" - MOS 8564 (NTSC) / 8566 (PAL)
Text: 40*25 characters
320*200 pixels
160*200 pixels
16 colors. Sprites
"VDC" - MOS 8563 (RGBI)
Text: 80*25 or 80*50 characters
640*200 pixels
640*400 pixels
320*200 pixels
16 colors. Blitter
Storage:Tape recorder
Integrated 5.25" floppy, 340 KB (a modified 1571D)
Input:External keyboard
Optional mouse
Connectivity:Cartridge slot
RF out
Video/audio out
80 column RGBI output
Floppy/printer port
Tape recorder I/O
TTL-RS232
User port
2*game ports
Voltage:Mains
Power consumption:
Dimensions (W*H*D):? Kg (?")
Weight:? Kg (? lbs)
Manufactured:1985-1989 (Discontinued)
Other:Commodore's last commercial 8-bit machine, which was able to run in three
different modes: C128 mode, C64 mode and CP/M mode.

This first version of 128D was housed in a plastic case and was not released
in the USA because it failed the FCC regulations for RF emissions.
Related documents:
Modifications:
Notable "ham" software:C64 mode: Digicom 64 - Packet TNC software for simple modem
C64 mode: Doctor DX - CQWW CW contest simulator (By AEA)
C64 mode: MBA-TOR - ASCII/CW/RTTY/AMTOR software (By AEA)
Original options/accessories:
1084S
1570
1571
1581
Color monitor, 14"
5.25" floppy, single sided
5.25" floppy, double sided
3.5" floppy