·Technology

Moore's Law

Why do our computers seem to double in power every few years?

Explanation

Moore's Law is an observation made by Intel co-founder Gordon Moore in 1965. It states that the number of transistors on a microchip doubles roughly every two years, while the cost of production decreases. This leads to an exponential growth in computing power. Although called a "law," it is not a physical law of nature, but rather a rule of thumb and a target that guided the semiconductor industry for decades. By making transistors smaller—now down to the scale of individual atoms—engineers have transitioned us from room-sized mainframes to powerful smartphones in our pockets. In recent years, physical limits like overheating and quantum effects have started to slow this doubling pace down.

Everyday example

Imagine if your car became twice as fast and used half as much fuel every two years, for the same price. After 20 years, it would be over a thousand times more efficient than when you bought it.

Why it matters

Moore's Law has been the driving engine behind the digital revolution. It explains why the smartphone in your pocket today is millions of times more powerful than the computers that put humans on the moon.

Common misconception

Many people think Moore's Law is an inevitable law of physics. In reality, it is a self-fulfilling prophecy maintained by engineering ingenuity and massive industrial investments.

Try this today

Compare the specs of your very first smartphone with the one you use today to see the law in action.

Moore's Law describes how computing power doubles roughly every two years as transistors get smaller and cheaper.

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