A free, browser-based switch-level logic lab and course. Start from one transistor and build up to a working 8-bit CPU, every circuit really simulated. Tinker in the sandbox, take the auto-checked course, or play the interactive explainers (how gates, binary, memory, and CPUs work). Optional AI tutor builds circuits with you. Free to start.
HardwareComputers
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Launched
July 11, 2026
Upvotes
3
Comments
5
Source
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