Designed similar to the VIC-20, the Commodore 64 (or C64 for short) featured a better video chip supporting sprites, as well as the famous sid6581 sound chip, two Atari-compatible joystick ports, and 64 kilobytes of RAM.
The Commodore 64 is, along with the Apple II and the Atari 8-Bit computers, one of the most famous home computers of it's era. During its production from 1982 to 1993, 17 to 22 millions, of these computer would sell, to put in perspective, that's more than all the Macintoshes in the world. It was one of the first to offer a high quality sound chip and graphic resolution with many colors and sprites. A great range of peripherals was developed for this computer and can use several of the VIC-20 peripherals.
Commodore produced the first generation of C64s from August 1982 to May 1986, then it was discontinued and they introduced the "Commodore 64C