C 128D-CR

C 128 D-CR - 01
	   
The 128D is the direct successor of the Commodore 128 : 
it has exactly the same characteristics as the 128 except its external
case which contains the Commodore 1571 floppy disk unit. 

Actually there are two distincs Commodore 128Ds : The 128D and the 128D-CR
(for Cost Reduced).
Differences between the 128D and the 128DCR are :
- The 128D was never sold in the U.S. because of all the radio frequency 
  interference it gives off.
- the 128D-CR has a metal case rather than plastic.
- the 128D-CR does not have a cooling fan, although there is a place to
  mount one.
- the 128D-CR case does not have storage clips for the keyboard.
- the 128D-CR comes with 64k of video RAM (for the RGB video chip) rather
  than 16k for the C128.
- the 128D-CR's printed circuit board is different, and includes the drive
  electronics. So there are 3 CPUs on the board.
- the 128D-CR comes with bugfixed (1986) ROMs in two 32k x 8 chips instead of
  four 16k x 8 ones.
- The internal drive's ROM is different from the original 1571 ROM in two ways:
  it is bugfixed, and it has changes for the new support chips. The bugfixes 
  are bigger than the changes for the new hardware.
- 128D-CR CPU RAM is in four 64k x 4 chips rather than sixteen 64k x 1 ones.
- the 128D-CR does not have a carrying handle.

(www.old-computers.com)
	   

Manufacturer Commodore Name C 128D-CR
Type Homecomputer Origine USA
Introduction Date 1985 End of production ???
Built in Language Basic Keyboard Complete full-stroke keyboard with separated numeric keypad
CPU 8502 + Zilog Z80 Speed 1/2 mHz (for the 8510), 1.022 MHz (for C64 mode)
Coprocessor SID (sound) & VIC-II (video) Amount of Ram 128 KB
Vram 64 KB Rom 48 KB
Text Modes 40 x 25 / 80 x 25 Graphic Modes several, most used : 160x200 / 320 x 200 / 640 x 200
Colors 16 Sound 3 voices / 6 octaves
Size / Weight ??? Built in Media 1571 disk-drive
I/O Ports RGB, Video Composite, Joystick (2), Cartridge, Tape, User Port (RS232 compatible), TV, serial OS C128 mode, C64 mode or CP/M
Power Supply External Introduction Price ???
Sold ??? Serial Number ???
Other Extras Commodore 1084S Monitor Bought Where Wuustwezel
Bought When 08/12/02 Condition Excellent
Price Paid 25€ Specs of my Model -
Setup Today ???

Back view Serial Number

View on the right

	   
	   
C128D-CR - 01:

Bought from the guy in Wuustwezel on 08/12/02.

Lots of other things where bought also:

- C128D-CR_01 (25€)
- Tandon Server (10€)
- IBM PS/2 Model 8580 (10€)
- Commodore 128 Programmeerhandleiding (1€)
- MSX Basic voor kinderen - delen 1& 2 (1€)
- Sinclair ZX Power Supply (2€)
- Spectrum Joystick Interface - Boxed (5€)
- ZX Interface 1 - Boxed (12.50€)
- Commodore 1541 Disk Drive - User's Guide (0.50€)
- Commodore 64 User Manual (1€)
- Commodore Matrixdrucker MPS-803 - Bedienungshandbuch (0.50€)
- IBM PS/2 Model 70 - Handboek en introducyie diskette (2.50€)
- Goldstar Family Computer - MSX Basic Model FC-200 Manual (0.50€)
- 4 Philips MSX Books (Designer Plus, Ease & Ease Applications,
  MSX2-Basic + MSX-Dos, NMS 8245 Computer) - (2€)
- Commodore C128 - Praktische tips & Programma's (1€)
- Lots of other manuals, software, handscanner, ... (10€)
- SVGA 14" Monitor (Gift)
- Compaq 14" Color Monitor (Gift)