====== Commodore Business Machines B128-80LP/610 and B256-80LP/620 (1983) ======
===== Features =====
* CPU: MOS 6509 (Zilog Z80 & Intel 8088 optional) 2 MHz
* RAM: 128 KB (up to 896 KB, varying according to the model)
* ROM: 28 KB
* Text Modes: 80 x 25
* Graphic Modes: 512 x 512
* Colors: Monochrome
* I/O Ports: IEEE-488, Serial RS-232
* Keyboard: Full stroke 94 key with numeric keypad and function keys
* Built In Media: Change according to the model
* OS: ROM Based (CP/M or MS DOS optional)
* Built In Language: Microsoft BASIC
* Peripherals: 2 x 170 KB or 500 KB or 1 MB 5" floppy disc unit, 8088 or Z80 card
===== Known Issues =====
The emulation of this system is Preliminary.
===== History and Trivia =====
The CBM 600 was the same as the 500 but had a 80-column display and 256 Kb RAM.
MicroSoft Basic was in ROM. Both models had an option for a second processor (8088 or Z80) to function alongside the standard 6509, the 6509 was then used for I/O, display and keyboard management. They worked under Commodore DOS or CP/M and MSDOS when the computers used the other processors.
The 500 / 600 series was mainly sold in Europe, but a few models are known to have been sold in the United States.
//(info from old-computers.com)//
===== Links =====
* Commodore 500, 600 and 700 computers page -- http://www.davidviner.com/cbm.php
* Larry's PET/CBM Pages -- http://www.portcommodore.com/petindex.php?path=main-cbmidx
* CBM 500 / 600 at old-computers.com -- http://old-computers.com/museum/computer.asp?c=104
===== Other Emulators =====
* VICE -- http://www.viceteam.org/
Generated on Sun Jul 19 10:17:28 2009