Commodore PET (CBM II) B500-128
Photo 1: Esocop Photo 2: Esocop
Personal computer, 1982, Commodore. The B500 is the early version of the low-profile CBM-II business model that became the B128 / CBM 610: 128 KB of RAM, 80 column display and a 6509 processor at 2 MHz. Only a small number of machines with the B500 label were produced before the renaming.
| Year | 1982 |
|---|---|
| Manufacturer | Commodore Business Machines |
| Processor | MOS Technology 6509 at 2 MHz |
| RAM | 128 KB |
| ROM | BASIC 4.0+ and KERNAL |
| Display | 80 x 25 text on an external monitor |
| Sound | SID 6581 |
| Storage | external IEEE-488 floppy disk drives |
| Ports | IEEE-488, RS-232, cartridge port, user port, cassette port |
| Operating system | Commodore BASIC 4.0+ |
| Case | low profile with built-in keyboard (like the Commodore 64), early B500 labelling |
Documentation
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