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Boolean Logic
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Boolean Logic

At first, no one could see a use for the weird algebra worked out by George Boole in the 1850s. But it gave us the Computer Age. At the heart of each computer chip, millions of logic gates conduct or block electric current, operating according to Boole's rules.

How does this lead to Flappy Bird and Facebook? Get the basics here, beginning with this retro (but easy to get) video.

Acme School/TV Ontario
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The Logic Lab: Simulating Simple Circuits of Logic Gates

The Logic Lab: Simulating Simple Circuits of Logic Gates

Drag the on-screen components, connecting output and input sockets to create your own simple circuits of logic gates. More...

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Neuro Productions
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Help the young cadet, Ping, move from level to level in this game, by rearranging electronic gates. More...

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Computers work by using the base-2, or binary, number system. You either understand binary or you don’t. More...

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The Transistor

It transformed radio and then computing. Want an in-depth look at the transistor? Then click through this site (using the tiny arrows around the "back" button, which are easy to miss). More...

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NobelPrize.org
Basic Logic Gates

Basic Logic Gates

Millions of logic gates work together inside computer chips, but the gates can also be useful on their own, as this site shows. More...

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Wisc-Online.com
Computing Building Blocks Created from Bacteria and DNA

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By making logic gates out of harmless gut bacteria and DNA, researchers may have set the stage for biological computers. In future, these may roam through your bloodstream, guarding your health. More...

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Science Daily
Domino Logic

Domino Logic

Logic gates don't have to be made of transistors and electric current. They can even be made of dominoes, as this video demonstrates. More...

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How Can a Little Computer Chip Do All Kinds of Things?

How Can a Little Computer Chip Do All Kinds of Things?

How can things as sophisticated as computers rely on things as simple as logic gates? Here’s an overview of how “computer architecture” works. More...

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University of California, Santa Barbara
How Do Digital Computers “Think”?

How Do Digital Computers “Think”?

George Boole's ideas were neglected until a college student came across them in a philosophy class. He thought they might have a use in telephone switching systems. More...

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See How Computers Add Numbers in One Lesson

See How Computers Add Numbers in One Lesson

The payoff for paying really careful attention to this video is that you’ll understand what goes on deep in the heart of a computer. More...

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