What Does Commodore 64 (C64) Mean?

The Commodore 64 was a flagship personal computer product of the Commodore company, released in 1982. It was largely recognized as the highest-selling personal computer model of all time, with between 10 and 17 millions of units sold (according to available estimates). However, Commodore 64 and computers like it were quickly replaced by more advanced models in following years.

Techopedia Explains Commodore 64 (C64)

Commodore 64 was an 8-bit home computer with 64 kB of RAM. It ran on a Commodore BASIC operating system and had a VIC-II graphics card, an external 170 K floppy drive, ports for two joysticks, and a cartridge port.