Commodore, the commonly used name for Commodore International, was an American electronics company based in West Chester, Pennsylvania which was a vital player in the home/personal computer field in the 1980s. The company is also known under the name of its R&D operation, Commodore Business Machines (CBM). Commodore developed and marketed the world's best-selling desktop computer, the Commodore 64 (1982). The company declared bankruptcy in 1994, but since then, there have been several attempts to revive its Amiga systems.