01How Computers Work (online)

Interactive circuit laboratory 02

Number converter

Convert in either direction, then compare signed and unsigned interpretations.

Prediction before clicking

Eight bits have 256 patterns. Unsigned interpretation spans 0 through 255; signed two’s complement spans −128 through 127.

Loading interactive controls…

What the simulator is showing you

Eight bits have 256 patterns. Unsigned interpretation spans 0 through 255; signed two’s complement spans −128 through 127.

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.