The VIC-20, known as the VC-20 in Germany and the VIC-1001 in Japan, is an 8-bit home computer that was sold by Commodore Business Machines. It was announced in 1980, about three years after the PET, Commodore's first computer, and was the first one of any description to sell one million units, eventually reaching 2.5 million. While the PET was sold through authorized dealers, the VIC-20 primarily sold at retail where it could compete directly with game consoles due to thousands of software available on cassette and cartridge. The VIC-20 went through several variations in its years of production, first-year models (1980) had a PET-style keyboard with a blocky typeface while most VIC-20s made during 1981 had a slightly different keyboard also shared with early C64s. The rainbow VIC-20 logo was introduced in early 1983 along with the new keyboard with gray function keys, like the C64, and the Revision B motherboard. Commodore discontinued the VIC-20 in January 1985.