The Atari 8-bit family is a series of 8-bit home computers manufactured from 1979 to 1992. All are based on the MOS Technology 6502 CPU and were the first home computers designed with custom coprocessor chips. Over the following decade several versions of the same basic design were released, including the original Atari 400 and 800 and their successors, the XL and XE series of computers. Overall, the Atari 8-bit computer line was a commercial success, selling two million units through its major production run between late 1979 and mid-1985, a total of around 4 million units.
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The Commodore 64 is an 8-bit home computer released by Commodore International in August, 1982, at a price of US$595. Preceded by the Commodore VIC-20 and Commodore MAX Machine, the C64 features 64 kilobytes (65,536 bytes) of RAM with sound and graphics performance that were superior to IBM-compatible computers of that time.
The Commodore 64 is commonly referred to as the C64 or C=64 and occasionally known as CBM 64 (Commodore Business Machines Model number 64), or VIC-64. It has also been affectionately nicknamed the “breadbox” and “bullnose” due to its shape.
During the Commodore 64’s lifetime sales totaled 30 million units, making it the best-selling single personal computer model of all time. For a substantial period of time (1983/84/85), the Commodore 64 dominated the market with approximately 40% share, even outselling IBM PCs and Apple computers. Sam Tramiel, a former Commodore president said in a 1989 interview “When I was at Commodore we were building 400,000 C64s a month for a couple of years.” Part of its success was due to the fact that it was sold in retail stores instead of electronics stores, and that Commodore produced many of its parts in-house to control supplies and cost.
For more information on the Commodore 64 visit Wikipedia.