$211.58
On Hold
Commodore 128 Computer, WORKING, C128 #51118
Appearance: Used, some broken keys
Functionality: Tested to BASIC, Power LED non-functional
Description:
============
As pictured, a Commodore 128 computer. Includes just the pictured main unit – no other accessories are available.
Warranty and Returns:
=====================
We understand that there may be compatibility issues, space constraints, or it just doesn’t look perfect. This item can be returned within 14-days for ANY reason. However, shipping to and from is not refundable.
Shipping:
=========
- Other shipping methods are available – contact us for details.
- Combined shipping is available for most items – contact us for details.
- Local pickup is also available at no cost.
About Us:
=========
The Computer Preservation Group is dedicated to the preservation of historical computers. To help fund ongoing operations, select items are made available. To learn more, please visit our website. Thank you for your support!
Stock#:J8280.NUNDR#9
Details from https://en.wikipedia.org/wiki/Commodore_128:
The Commodore 128, also known as the C128, C-128, C= 128,[n 1] or occasionally CBM 128, is the last 8-bit home computer that was commercially released by Commodore Business Machines (CBM). Introduced in January 1985 at the CES in Las Vegas, it appeared three years after its predecessor, the bestselling Commodore 64.
The C128 is a significantly expanded successor to the C64, with nearly full compatibility. The newer machine has 128 kB of RAM in two 64 kB banks, and an 80-column color video output. It has a redesigned case and keyboard. Also included is a Zilog Z80 CPU which allows the C128 to run CP/M, as an alternative to the usual Commodore BASIC environment. The presence of the Z80 and the huge CP/M software library it brings, coupled with the C64's software library, gives the C128 one of the broadest ranges of available software among its competitors.[1]
The primary hardware designer of the C128 was Bil Herd, who had worked on the Plus/4. Other hardware engineers were Dave Haynie and Frank Palaia, while the IC design work was done by Dave DiOrio. The main Commodore system software was developed by Fred Bowen and Terry Ryan, while the CP/M subsystem was developed by Von Ertwine.
Specifications
CPUs:[37]
MOS Technology 8502 @ 2 MHz (1 MHz selectable for C64 compatibility mode or C128's 40-column mode)
Zilog Z80 @ 4 MHz (running at an effective 2 MHz because of wait states in order to allow the VIC-II video chip access to the system bus)
(C128D(CR)): MOS Technology 6502 for the integrated floppy controller
MMU: MOS Technology 8722 Memory Management Unit controls 8502/Z80 processor selection; ROM/RAM banking; common RAM areas; relocation of zero page and stack
RAM: 128 kB system RAM, 2 kB 4-bit dedicated color RAM (for the VIC-II E), 16 kB or 64 kB dedicated video RAM (for the VDC), up to 512 kB REU expansion RAM
ROM: 72 kB
28 kB BASIC 7.0
4 kB MLM
8 kB C128 KERNAL
4 kB screen editor
4 kB Z80 BIOS
16 kB C64 ROM: ≈9 kB C64 BASIC 2.0 + ≈7 kB C64 KERNAL
4 kB C64 (or international) character generator
4 kB C128 (or national) character generator
32 kB Internal Function ROM (optional: for placement in motherboard socket)
32 kB External Function ROM (optional: for placement in REU socket)
Video:
MOS 8564/8566 VIC-II E (NTSC/PAL) for 40-column composite video (a TV set can be used instead of a monitor if desired)
Direct register access through memory-mapped I/O
Text mode: 40×25, 16 colors
Graphics modes: 160×200, 320×200
8 hardware sprites
2 kB dedicated 4-bit color RAM, otherwise uses main memory as video RAM
MOS 8563 VDC (or, in C128DCR, the 8568) for 80-column digital RGBI component video, compatible with IBM PC CGA monitors, monochrome display also possible on composite video monitors; usable with TV sets only when the set has SCART and/or baseband video-in sockets in addition to the antenna connector. Color is possible through SCART, only monochrome through baseband video-in.
Indirect register access (address register, data register in mapped memory)
Text mode: Fully programmable, typically 80×25 or 80x50, 16 RGBI colors (not the same palette as the VIC-II)
Graphics modes: Fully programmable, typical modes are 320x200, 640×200, and 640×400 (interlaced).
16 kB dedicated video RAM (64 kB standard in C128DCR, C128/C128D can be upgraded to 64 kB), accessible to the CPU only in a doubly indirect method (address register, data register on VDC, which in turn are addressed through address register, data register in mapped memory)
Limited blitter functionality
Sound:
MOS 6581 SID (or, in the C128DCR, the MOS 8580 SID) synthesizer chip
3 voices, ADSR-controllable
Standard SID waveforms (triangle, sawtooth, variable pulse, noise, and certain combined modes)
Multi-mode filter
3 ring modulators
I/O Ports:
All Commodore 64 ports with 100 percent compatibility, plus the following:
Higher "burst mode" speed possible on the serial bus
Expansion port more flexibly programmable
RGBI video output (DE9-connector) logically similar to the IBM PC CGA connector, but with an added monochrome composite signal. This added signal causes a minor incompatibility with certain CGA monitors that can be rectified by removing pin 7 from the plug at one end of the connecting cable.
Functionality: Tested to BASIC, Power LED non-functional
Description:
============
As pictured, a Commodore 128 computer. Includes just the pictured main unit – no other accessories are available.
Warranty and Returns:
=====================
We understand that there may be compatibility issues, space constraints, or it just doesn’t look perfect. This item can be returned within 14-days for ANY reason. However, shipping to and from is not refundable.
Shipping:
=========
- Other shipping methods are available – contact us for details.
- Combined shipping is available for most items – contact us for details.
- Local pickup is also available at no cost.
About Us:
=========
The Computer Preservation Group is dedicated to the preservation of historical computers. To help fund ongoing operations, select items are made available. To learn more, please visit our website. Thank you for your support!
Stock#:J8280.NUNDR#9
Details from https://en.wikipedia.org/wiki/Commodore_128:
The Commodore 128, also known as the C128, C-128, C= 128,[n 1] or occasionally CBM 128, is the last 8-bit home computer that was commercially released by Commodore Business Machines (CBM). Introduced in January 1985 at the CES in Las Vegas, it appeared three years after its predecessor, the bestselling Commodore 64.
The C128 is a significantly expanded successor to the C64, with nearly full compatibility. The newer machine has 128 kB of RAM in two 64 kB banks, and an 80-column color video output. It has a redesigned case and keyboard. Also included is a Zilog Z80 CPU which allows the C128 to run CP/M, as an alternative to the usual Commodore BASIC environment. The presence of the Z80 and the huge CP/M software library it brings, coupled with the C64's software library, gives the C128 one of the broadest ranges of available software among its competitors.[1]
The primary hardware designer of the C128 was Bil Herd, who had worked on the Plus/4. Other hardware engineers were Dave Haynie and Frank Palaia, while the IC design work was done by Dave DiOrio. The main Commodore system software was developed by Fred Bowen and Terry Ryan, while the CP/M subsystem was developed by Von Ertwine.
Specifications
CPUs:[37]
MOS Technology 8502 @ 2 MHz (1 MHz selectable for C64 compatibility mode or C128's 40-column mode)
Zilog Z80 @ 4 MHz (running at an effective 2 MHz because of wait states in order to allow the VIC-II video chip access to the system bus)
(C128D(CR)): MOS Technology 6502 for the integrated floppy controller
MMU: MOS Technology 8722 Memory Management Unit controls 8502/Z80 processor selection; ROM/RAM banking; common RAM areas; relocation of zero page and stack
RAM: 128 kB system RAM, 2 kB 4-bit dedicated color RAM (for the VIC-II E), 16 kB or 64 kB dedicated video RAM (for the VDC), up to 512 kB REU expansion RAM
ROM: 72 kB
28 kB BASIC 7.0
4 kB MLM
8 kB C128 KERNAL
4 kB screen editor
4 kB Z80 BIOS
16 kB C64 ROM: ≈9 kB C64 BASIC 2.0 + ≈7 kB C64 KERNAL
4 kB C64 (or international) character generator
4 kB C128 (or national) character generator
32 kB Internal Function ROM (optional: for placement in motherboard socket)
32 kB External Function ROM (optional: for placement in REU socket)
Video:
MOS 8564/8566 VIC-II E (NTSC/PAL) for 40-column composite video (a TV set can be used instead of a monitor if desired)
Direct register access through memory-mapped I/O
Text mode: 40×25, 16 colors
Graphics modes: 160×200, 320×200
8 hardware sprites
2 kB dedicated 4-bit color RAM, otherwise uses main memory as video RAM
MOS 8563 VDC (or, in C128DCR, the 8568) for 80-column digital RGBI component video, compatible with IBM PC CGA monitors, monochrome display also possible on composite video monitors; usable with TV sets only when the set has SCART and/or baseband video-in sockets in addition to the antenna connector. Color is possible through SCART, only monochrome through baseband video-in.
Indirect register access (address register, data register in mapped memory)
Text mode: Fully programmable, typically 80×25 or 80x50, 16 RGBI colors (not the same palette as the VIC-II)
Graphics modes: Fully programmable, typical modes are 320x200, 640×200, and 640×400 (interlaced).
16 kB dedicated video RAM (64 kB standard in C128DCR, C128/C128D can be upgraded to 64 kB), accessible to the CPU only in a doubly indirect method (address register, data register on VDC, which in turn are addressed through address register, data register in mapped memory)
Limited blitter functionality
Sound:
MOS 6581 SID (or, in the C128DCR, the MOS 8580 SID) synthesizer chip
3 voices, ADSR-controllable
Standard SID waveforms (triangle, sawtooth, variable pulse, noise, and certain combined modes)
Multi-mode filter
3 ring modulators
I/O Ports:
All Commodore 64 ports with 100 percent compatibility, plus the following:
Higher "burst mode" speed possible on the serial bus
Expansion port more flexibly programmable
RGBI video output (DE9-connector) logically similar to the IBM PC CGA connector, but with an added monochrome composite signal. This added signal causes a minor incompatibility with certain CGA monitors that can be rectified by removing pin 7 from the plug at one end of the connecting cable.
