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The Commodore 64 ( common abbreviations : C64 , CBM 64 , C=64 ) is a home computer by Commodore Business Machines Inc. marketed from 1982 to 1994 .

It was placed on the market two years after the Commodore VIC-20 , with superior memory, graphics and sound capacity compared to the latter, as well as good compatibility with its peripherals. The machine sold until the company's bankruptcy, and was the best-selling machine in computing history , with several million units manufactured and sold. The following Commodore 128 maintained hardware and software compatibility thanks to a dedicated mode.