Commodore 64 (1982)

The best selling computer of all time still appears to be the Commodore 64: Estimates of this PC's sales range from 15 million to 22 million units. The first C64 cost $595 and came with 64KB of RAM, a 6510 processor, 20KB of ROM with Microsoft BASIC, 16-color graphics, and a 40-column screen. (How times have changed!) It also was the first PC with an integrated sound synthesizer chip, according to Ian Matthews of Commodore.ca. Photo courtesy of the Computer History Museum.