Gordon Moore published the observation that became Moore's Law
On this day · 19 April 1965
On April 19, 1965, a four-page magazine article quietly forecast the doubling that would drive six decades of computing.
On April 19, 1965, the trade journal Electronics ran a short piece by Gordon Moore, then research director at Fairchild Semiconductor. Its plain title — “Cramming more components onto integrated circuits” — hid an audacious claim.
Moore drew a line through just five data points, the component counts of the best chips made between 1959 and 1965, and noticed they doubled roughly every year. He extrapolated boldly, projecting 65,000 components on a single chip by 1975.
The trend, he wrote, would hold “for at least ten years.”
The forecast became a self-fulfilling prophecy. Caltech’s Carver Mead later dubbed it Moore’s Law, and the semiconductor industry effectively adopted it as a roadmap, racing to keep pace. Moore revised the doubling to every two years in 1975, then co-founded Intel. What began as one engineer’s back-of-the-envelope estimate ended up describing the exponential rise of the entire digital age.
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