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What is error correction? Hamming codes in hardware
A 37-minute video by Ben Eater about error correction, on the From scratch shelf. It came up in r/programming, in a thread called “Hamming codes part 2, the elegance of it all (in software implementation) - 3Blue1Brown”. It is pitched at intermediate level.
Ben Eater, Video, 37 min, 2020, on the From scratch shelf
Builds the logic of Hamming error correction into hardware rather than treating it as a black box.
Study notes
Intermediate, Built from scratch. Step 5 of 7 in Information, error and trust
Helpful first
- Logic gates
- Parity checks
What it builds
- Treat extra bits as parity checks rather than copies.
- Compute parity with exclusive-or gates.
- Connect error correction to physical circuitry.
Useful moments
Check yourself: Which gate operations would you use to check whether a group of bits has even parity?
Notes are based on metadata, Reddit context and selected English caption passages. They are not a review of every claim in the video.
Builds the logic of Hamming error correction into hardware rather than treating it as a black box.
