C64

C64 or C-64 may refer to :

Commodore 64, one of the most successful home computers of the 1980s

C-64 (Michigan county highway), a road in the United States of America

C-64 Norseman, an aircraft

C64 (field gun), a late 19th-century field gun by Krupp

Ruy Lopez, chess openings ECO code

Renal cell carcinoma, ICD-10 code

Commodore 64 (band), a Hip-hop group

Caldwell 64 (NGC 2362), an open cluster in the constellation Canis Major

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Commodore 64

The Commodore 64, also known as the C64, C-64, C= 64, or occasionally CBM 64 or VIC-64, is an 8-bit home computer introduced in January 1982 by Commodore International. It is listed in the Guinness World Records as the highest-selling single computer model of all time, with independent estimates placing the number sold between 10 and 17 million units.

Volume production started in early 1982, with machines being released on to the market in August at a price of US$595 (roughly equivalent to $1,500 in 2016). Preceded by the Commodore VIC-20 and Commodore PET, the C64 takes its name from its 64 kilobytes (65,536 bytes) of RAM, and has technologically superior sound and graphical specifications when compared to some earlier systems such as the Apple II and Atari 800, with multi-color sprites and a more advanced sound processor.

The C64 dominated the low-end computer market for most of the 1980s. For a substantial period (1983–1986), the C64 had between 30% and 40% share of the US market and two million units sold per year, outselling the IBM PC compatibles, Apple Inc. computers, and the Atari 8-bit family of computers. Sam Tramiel, a later Atari president and the son of Commodore's founder, said in a 1989 interview, "When I was at Commodore we were building 400,000 C64s a month for a couple of years." In the UK market, the 64 faced competition from the BBC Micro and the ZX Spectrum but the 64 was still one of the two most-popular computers in the UK.

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C64 (field gun)

The Krupp C64 (sometimes C/64) steel, breech loaded field gun (8cm caliber, 4 pound projectile) was one of the main artillery pieces of the Prussians in the 1870-1871 war with France. It was superior to the French counterparts in every way: accuracy, rate of fire and range.

The C64 was the sole gun of the horse artillery units. Each unit comprised three batteries, each battery was equipped with six C64 guns, for a total of eighteen guns per unit. The foot artillery units had an equal mixture of C64 and the heavier C67 (six pounder gun).