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An astonishing old calculator - Numberphile
Numberphile
Cliff Stoll shows and explains his two Friden EC-132 electronic calculators for Numberphile. The video covers how these early machines worked, including their unusual acoustic delay line memory.
It is the go-to visual explanation of delay-line memory and early electronic calculators whenever the topic comes up.
3 Hacker News mentions · 2017–2023