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Last modified 2012-08-02

Commodore 128DCR

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 8568 (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
User port
2*game ports
Power consumption:
Dimensions (W*H*D):? mm (?")
Weight:? Kg (? lbs)
Manufactured:1987-1989 (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 second version of 128D was housed in a metal case and was released in both
Europe and USA, complying with the FCC regulations for RF emissions. It featured
an optimized motherboard with a new VDC chip with more video RAM, and some bugfixes.
The carrying handle and internal fan were also removed in this so called "cost reduced"
version, hence the inofficial DCR suffix.
Related documents:
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:
Color monitor, 14"
5.25" floppy, single sided
5.25" floppy, double sided
3.5" floppy