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In 1975, Gordon Moore revised his famous prediction. How often did he then say chip density would double?

Every two years; his 1965 forecast had said every year.

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  1. Every two years ✔
  2. Every year
  3. Every 18 months

Why: In 1965 Moore projected components per chip doubling every 12 months. With new data in 1975, at Intel, he changed it to every two years. The 18 months figure is a popular mix-up.

Huh, didn't know that: Moore did not name it himself. Physicist Carver Mead dubbed it Moore's Law.

The dad joke
Moore's Law says chips double every two years. My snack chips vanish every two minutes.
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References

Answer: Every two years. In 1965 Moore projected components per chip doubling every 12 months. With new data in 1975, at Intel, he changed it to every two years. The 18 months figure is a popular mix-up.

  1. Computer History Museum, 1965: Moore's Law Predicts the Future of Integrated Circuits www.computerhistory.org/siliconengine/moores-law-predicts-the-future-of-integrated-circuits
    a doubling every two years, rather than every year.
    Checked 2026-10-10.

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