01How Computers Work

Interactive circuit laboratory 01

Binary workbench

Turn individual bits on and off; the decimal and hex readings update instantly.

Prediction before clicking

A selected bit contributes its power-of-two weight. Toggle one bit and you add or subtract exactly that weight.

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What the simulator is showing you

A selected bit contributes its power-of-two weight. Toggle one bit and you add or subtract exactly that weight.

Try to predict the next output before changing the input. A prediction is evidence that you understand the mechanism. If the result surprises you, trace the bit values or the stored state explicitly.

Binary representation, diagram of connected labeled components
Binary representation. Follow the arrows to identify where information travels and what each block contributes.

Go deeper into the explanation

These experiments are simplified teaching models. The rules are intentional and inspectable, but they do not simulate transistor propagation delay, power consumption, or real processor pipeline details.