Here is a description of the keyboard computer. The computer was also available as a desktop version called the C128-D. The keyboard computer the PCB board and keyboard was built into one case. PSU and floppy disk drive had to be connected externally. The 1570/1571 was specially developed for use with C128 computers.
The C128 in the keyboard computer version. Good to see the size of the computer. The case design looks more modern. Unlike the C64, the keyboard is finally deep, so you can work comfortably with it. He also has a better keyboard with separate numeric keypad. The C64c got a similar design to the C128.
Right, there are similar connectors as has the C64. Also it features notmal 9 pin joystick ports. Then follows the reset switch, power switch and the power supply connector. Unfortunately, equivalent to the power supply port of the Amiga. Also the power supplies look almost identical. But the voltages are different, so you should always check whether you have the right power supply for the computer.
Rear connectors also largely resemble those of C64. The expansion port can take C64 modules. If a C64 cartridge is detected, the computer automatically enters the C64 mode. Then the tape drive connector is for the Model 1530 and the serial port for all Commodore drives. Specifically for the C128 the 1571 was developed, which supports all functions and formats of the computer. Then the video port and the TV modulator. The next connector is found only on C128: The RGB port is required for the 80 character mode. On the far right the C64-compatible user port.
The underside shows the nameplate. You can also see a bit of the green circuit board from the outside.
The board is quite large, has many traces in the middle. In the metal box there is the video chip of the C64, the VIC-II and the C128, called VDC. The SID is right next to the metal box. On the board you can also find the MOS 8502 processor and a Zilog Z80 (for the CP/M mode). Top left is a free socket for optional extensions. On the bottom left corner there are total of 16 chips for 128 KB RAM.
The power supply of the C128 has the same connector as an Amiga Power Supply for A500, A600 and A1200. It even looks the same. However, the Voltage is different (Amiga: 5V= and 12V=; C128: 5V= and 9V~). This means that if you connect the wrong PSU it will damage your computer. The C128 power supply, unlike the Amiga power supply, has no switch. The bottom of the PSUs feature a sticker or engarved information where you can see the hint "for C128" or "For A500".
The front of the C128-packaging differs markedly from the older packaging of the VIC 20, C64 and C16. The white base color with red and blue stripes and logos and the image of the product makes it look more professional compared to the colorful packaging of the predecessors. Instead of a thin cartonage that slides over two styrofoam parts, but a more robust package.
The back shows the upgrade possibilities of the computer. The monitor 1901 for displaying 80-characters on top left is available later, but in another case as shown. The drives 1570 and 1571 were produced exactly as shown. Also a printer and a mouse is shown. The mouse is referred to as 1350, but shows a prototype, because the shape differs significantly from the series production. The text on the right is very long and small. Better would have been short and easily remembered phrases. Bottom right you can see three examples of programs, most applications, even in the CP/M mode. A graphic example can be found here too, but the priority lies with the professional applications.
The C128 in original packaging: Similar to the Amiga 500 it has two styrofoam parts on each side. On the right there is the PSU.
The C128 has the best BASIC, which was used in Commodore home computers. Version 7.0 has many improvements and is greatly expanded. Shown on the right is the green startup screen of the 40 character mode.
The 80-character mode requires a special RGB cable and is generated by the VDC chip. The writing is light blue on a dark background.
In 80 characters mode it is possible to start CP/M. This is loaded from disk. When you turn on the computer and a disk is inserted in the floppy drive, it will be automatically started. The font is pink on a black background.
BASIC 2.0 is used in C64 mode. It will be started if you hold down C= key at power up or if you enter the command "GO 64" in BASIC 7.0. Most of the C128 were used for c64 mode only bbecause there was not much special software for the C128 and CP/M was already outdated.
3D ModelI don't created these 3D models. I have edited and maybe converted the models only. They are downloadable for free from:
|Launch price:||299 Dollar|
|Processor:||MOS 8502 (2 MHz) and Z80A (4 MHz)|
|Operating system:||BASIC 2.0 und 7.0 sowie CP/M|
|graphics chip:||6569 (VIC-II) and 8563 (VDC)|
|Resolution:||Up to 640x200|
|Soundchip:||MOS 6581/8580 (SID)|
|Sound:||3 voices, mono|
|Size:||320 x 430 x 60 mm|
RGBI (80 characters)
|expansions inside:||Chip socket for programs / enhancements|
The above shown computers are in the collection!
Compatible drives for the computer C128: