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How do Transistors Build into a CPU? How do Transistors Work?
A 27-minute video by Branch Education about transistors, CMOS and logic gates, on the Hardware shelf. It was posted to r/hardware as “[Branch Education] How do Transistors Work? How are Transistors Assembled Inside a CPU?”. It is pitched at introductory level.
Branch Education, Video, 27 min, 2025, on the Hardware shelf
Explains individual transistors, their combination into logic gates, and how those gates build a CPU.
Study notes
Introductory, How it works inside. Step 2 of 10 in How a computer works
Helpful first
- Binary numbers
- Basic electrical circuits
What it builds
- Treat a transistor as a controllable electrical component.
- Build logic from standard cells of connected transistors.
- Understand a processor as a hierarchy of increasingly large circuit blocks.
Useful moments
Check yourself: What changes when transistors are connected into a standard cell rather than used individually?
Notes are based on metadata, Reddit context and selected English caption passages. They are not a review of every claim in the video.
About this record
The exact submitted video URL was verified through a fresh Reddit JSON read; Reddit uses an earlier title.
