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Showing articles with label Calculator.
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HP 35 – 40 years old today
The HP-35 was HP’s first pocket calculator and the first scientific calculator. Its award winning approach brought a range of innovations (first product to have both ICs and LEDs), put many a slide rule on the shelf.
There is some interesting history about the calculator on-line (including the problems based on the lack of precision in the mainframe computers that effected the testing of the calculator).
You can still buy a version today.





