Researched
Error-Correcting Codes
Hamming (1950) and Reed-Solomon (1960) codes add clever redundancy so errors in data can be found and fixed automatically.
Open in the interactive tree →Error correction makes reliable data possible over noisy channels: deep-space probes, CDs, QR codes, hard disks and 5G all use it. Quantum error correction took its basic ideas from the classical codes.
Prerequisites
Unlocks
- Deep-space probes (Voyager)1977Voyager's images reached Earth thanks to Golay error-correcting codes
- 5G Rollout & Road to 6G20195G uses LDPC and polar error-correcting codes
- Quantum Error Correction2024Quantum codes were modelled on classical error-correcting codes
Sources
More in Communication & Networks · Atomic & Space Age
- Information Theory1948
- Communications Satellites1962
- Packet Switching1965
- The Internet1969
- Optical Fiber1970
- ALOHAnet1971
- E-mail1971
- Ethernet and local networks1973