Moore's law

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Moore's Law is a term attributed to Intel founder Gordon E. Moore who observed in 1965 that the number of transistors that could be purchased inexpensively and placed on an integrated-circuit doubles every year. He later revised this figure to every 2 years (1975). The doubling period is often mistakenly reported as "18 months" or shorter, this is due to being confused with the overall processing power of computers doubling more quickly due to factors such as increases in clock speed, increases in cache memory or improvements in chip design.

Importantly the ability to increase the number of transistors available is due to reducing transistor size rather than increasing the size of the integrated circuit. As of 2012 the smallest commercial available transistors in a microprocessor are 22 nanometers, their 1965 transistor counter-parts were 100 micrometers (100,000 nanometers). Intel have revealed they expect to release a 5nm that will be released in line with the expectations of Moore's law.

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