37 Year Old Calculator Wins Award
Rarely does a press release make such fascinating reading. The e-mail in question proudly boasts that the venerable HP-35 scientific calculator from, you guessed it, HP has won an award. The “IEEE Milestone in Electrical Engineering and Computing” award, to…
Rarely does a press release make such fascinating reading. The e-mail in question proudly boasts that the venerable HP-35 scientific calculator from, you guessed it, HP has won an award. The “IEEE Milestone in Electrical Engineering and Computing” award, to be precise.
So good is the release that I have just pasted it straight into this post. A few additional facts not mentioned: When it went on sale in 1972, the calculator cost $395, which is around $2000 in today’s money. Despite this, HP still managed to shift 100,000 in the first year. That’s a lot of nerds. Keep reading to find out which tallest mountain in the world the HP-35 has been carried to the top of.
HP-35 Scientific Calculator Awarded IEEE Milestone [HP. Thanks, Jessica!]
Photo: Holger Weihe/Wikipedia
See Also:
- My Dad’s 30 Year Old Calculator Still Going Strong
- Casio Spruces Up Nerdy Calculator Watches
- Breaking: Casio Still Makes Calculators
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The HP-35, named for its 35 keys, was the first handheld calculator to perform transcendental functions such as trigonometric, logarithmic and exponential functions.
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At the time, contemporary calculators could only perform four basic functions – addition, subtraction, multiplication and division.
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The now classic “Reverse Polish Notation” (RPN) first used in the HP-35 has become the most efficient way known to computer science for evaluating mathematical expressions.
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In the first three years after its introduction in 1972, sales of the HP-35 Scientific Calculator exceeded 300,000 units.
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Forbes ASAP named HP 35 as one of the 20 “all time products” that have changed the world.
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It was the world’s first handheld scientific calculator with a LED display.
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HP-35 has traveled to the top of Mt. Everest for use in altitude and navigation calculations.
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HP-35 is regularly used to navigate ships.
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HP-35 has been used by astronauts aboard spacecraft to calculate the exact angle of re-entry into the Earth’s atmosphere.






