Electronic Calculators—Handheld
americanhistory.si.edu
In the course of the 1970s, handheld electronic calculators transformed the way tens of millions of people did arithmetic. Engineers abandoned slide rules, business people gave up desktop calculating machines, and shoppers replaced simple adding machines and adders.
  • 9point6@lemmy.worldEnglish
    2·
    3 months ago

    And in 1990, Texas Instruments basically invented the last one as far as education is concerned

    • eeltech@lemmy.worldEnglish
      0·
      3 months ago

      Does the TI monopoly extend to other states? Guess I never thought about it before, but was almost excited to see Casio’s could potentially be used elsewhere

  • fubarx@lemmy.mlEnglish
    1·
    3 months ago

    Our kid’s math teacher put up a slide for the parents telling them a lot of school districts mandated the TI, but not our district. He put up a second slide with specs on the Casio for 1/8th the price, then announced if families couldn’t afford even that, he had a bunch to loan out for the term.