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An astonishing old calculator - Numberphile

Numberphile · explainer · Watch on YouTube

History of computingRecreational & visual mathComputer architecture & CPUs

What it is

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.

Why Hacker News recommends it

It is the go-to visual explanation of delay-line memory and early electronic calculators whenever the topic comes up.

  • 1 people recommended it
  • 1 different months
  • 1 strong recommendations
  • first 2017, last 2023

What HN commenters said

  1. “There is also a fantastic video where Cliff Stoll describes the Friden EC-132 calculator and shows off its acoustic delay line here”

    Cliff Stoll shows Friden EC-132's acoustic delay line.

    kdoherty, 2017-12 · Strong recommendation · in “Acoustic delay line memory (2014)”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: cliff stoll, friden ec-132, delay line memory, vintage computing, numberphile

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