The Commodore 64, is an 8-bit home computer that took its name from its 64 kilobytes of RAM. It had superior sound and graphical specifications compared to other earlier systems such as the Apple II and Atari 800 and dominated the low-end computer market for most of the 1980s selling an estimated 10 to 17 million units. It was released on August 1st 1982 for $595.00, which would equate to $1,525.84 today.
August 1st, 1982 Source: wikipedia.org
Released sometime in the month of August