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More On Early Hand-Held Electronic Calculatiors

The following statements pertain to the early history of hand-held electronic calculators. Can you provide the correct responses?

  1. Keuffel & Esser, the world's primary slide rule manufacturer, made its last slide rule in _________.
  2. In 1977, _________, manager of Keuffel & Esser, claimed: "The slide rule will still be around the way a horse is still around; but the calculator is taking its place the way the automobile replaced the horse."
  3. The ______ _______ was the first solar powered calculator,made by Teal Industries.
  4. The HP-35 had only a (Degree or Radian) mode.
  5. The HP-65 was introduced in January _____ and sold for $______.
  6. In 1971, the Brother-310 calculator ($349) had no _______ key, rather one had to look up the ________ of the ________ in a list provided, and then __________.
  7. In 1972, HP held a contest between slide-rule-using engineers and HP-35-using engineers, with the __________ group winning at 5 seconds vs. 65 seconds.
  8. In _______, a calculator-carrying businessman tried to board a plane in Reno, but was detained by security. He said: "I had to stand there and make a bunch of calculations on the **%@*& thing before they would let me board the plane." Note: He missed the plane!

Answer: (1) 1975 (2) Edward Talko (3) Teal Photon (4) Degree (5) 1974; $795 (6) divide; reciprocal; divisor;multiply (7) HP-35 group (8) 1972

Source: K. Hamrick's "The History of the Hand-Held Electronic Calculator," Math. Mag., Oct. 1996