Commodore · Gen
Hardware
The original Commodore 64 home computer, introduced in August 1982 and best known by its model designation CBM 64. It used the familiar breadbin case and is the baseline model from which later Commodore 64 revisions were derived. Commodore later produced several cosmetic and internal revisions, but the original model remained functionally the reference C64.
The portable Commodore 64-based computer, introduced in 1983 and sold as the SX-64 or Executive 64. It combined a built-in color CRT, floppy drive, and detachable keyboard in a luggable form factor. It is functionally based on the Commodore 64 platform rather than being a separate architecture.
The redesigned 1986 Commodore 64 with the sleeker C128-style case. It is functionally equivalent to the original C64, but the enclosure and some internal revisions were updated over time. It became the standard late-production version in many markets.
A Commodore 64 variant sold mainly in Europe, usually in a breadbin-style case with late-production parts. It is widely documented as a cost- and parts-driven regional variant rather than a new hardware platform. The model designation C64G is associated especially with German-market machines.
A cartridge-based console version of the Commodore 64 released in Europe in 1990. It removed the keyboard and was intended to sell C64 software as a living-room games machine. Commercially it was short-lived and is usually treated as a C64-derived console rather than a new computer.