Commodore 128
Commodore Business Machines
Computer
1985
Three computers in one: C64 mode (near-complete C64 compatibility), C128 native mode (128 KB RAM, BASIC 7.0, 2 MHz, 80-column VDC chip), and CP/M 3.0 mode via a built-in Z80A processor. The last 8-bit home computer from Commodore.
Specifications
- Manufacturer
- Commodore Business Machines
- Type
- Computer
- Year
- 1985
- CPU
- MOS 8502 @ 2 MHz (C128) / 1 MHz (C64) + Zilog Z80A @ 4 MHz (CP/M)
- Clock speed
- 2 MHz (C128 native) / 1 MHz (C64 mode) / 4 MHz (Z80 / CP/M)
- RAM
- 128 KB (2× 64 KB banks, expandable to 512 KB)
- ROM
- 72 KB
- Video chip
- MOS VIC-IIe 8564/8566 (40-col, C64 compat.) + MOS VDC 8568 (80-col, up to 16 colours)
- Sound chip
- MOS SID 8580 — 3 voice
- OS / BASIC
- Commodore BASIC 7.0 (C128) / BASIC V2 (C64 mode) / CP/M 3.0
- Ports
- Cartridge, Datasette, Serial IEC, User Port, 2× DE-9 Joystick, RGB, RGBI, A/V DIN, RF
- Supported
- Commodore 128
Files
No files attached.
Credits
- Added to site
- 03 Jul 2026