The Commodore CBM-II is the follow-up system from the Commodore PET. Launched in 1982 after the PET discontinued, the CBM-II shipped in two different versions. Both the P & B series (Personal & Business) that were produced for the two different markets. There are 6 models in total made of the CBM-II. Each had their own RAM configurations or with an additional co-processor card in the high end 630 & 730 models.
Both versions utilised the MOS 6509 processor, the personal version clocked @ 1mhz and the business @ 2mhz. Two main RAM configuration options for both series came in either 128k or 256k versions. 64K and 192k versions of the CBM-II originally planned were dropped early in development.
The P series cancelled in the US before it became available, primarily due to the popularity of the Commodore 64 which launched also in 1982.
The CBM-II was a short-lived product, due to high manufacturing costs and being tricky to develop for. The fact the C64 released meant the P series would unlikely be adopted in high numbers.
How to Emulate this system?Commodore CBM-II emulation is reasonably well catered for, we recommend taking a look at RetroArch if you are seeking an all in one solution. RetroArch emulates a large number of systems including the Commodore CBM-II. RetroArch is a front end that utilises emulator 'cores', it is reasonably easy to use and has lots of good supporting documentation on how to use it. RetroArch is available across a number of platforms including Windows, Mac, Android, iOS, Raspberry Pi and many consoles. Take a look at our quick start guide for RetroArch which can get you up and running in 5 minutes.Check out RetroArch hereThe king of Commodore emulation has long reigned in the form of VICE (the Versatile Commodore Emulator). VICE provides emulation of pretty much all of Commodore's systems except the Amiga.It is the most complete all in one Commodore system emulator package available. We definitely recommended VICE as a single point to emulate most Commodore systems.
|VICE||The most configurable and advanced Commodore emulator, emulating a number of Commodore systems including the Commodore CBM-II. Certainly recommended if you want to play around with more in depth settings.||Windows / OSX / Linux / Android|