01How Computers Work

Interactive circuit laboratory 09

Seven-segment display

Toggle segment lines or choose a decimal digit; see a hardware-style display.

Prediction before clicking

A seven-segment digit is formed by a specified selection of individual light segments.

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What the simulator is showing you

A seven-segment digit is formed by a specified selection of individual light segments.

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.

Output to the physical world, diagram of connected labeled components
Output to the physical world. 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.