HP-35
First pocket scientific calculator / From Wikipedia, the free encyclopedia
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This article is about the first HP pocket calculator. For the calculator introduced in 2007, see HP 35s. For the pistol, see Browning Hi-Power.
The HP-35 was Hewlett-Packard's first pocket calculator and the world's first scientific pocket calculator:[1] a calculator with trigonometric and exponential functions. It was introduced in 1972.
Quick Facts Type, Introduced ...
Type | Scientific |
---|---|
Introduced | 1972 |
Discontinued | 1975 |
Calculator | |
Entry mode | RPN |
Display type | Red LED seven-segment display |
Display size | 15 digits (decimal point uses one digit), (±10±99) |
Programming | |
Memory register | Four-register operational stack with one memory register. |
Other | |
Power supply | Internal rechargeable battery or 115/230 V AC, 5 W |
Weight | Calculator: 9 oz (260 g), recharger: 5 oz (140 g) |
Dimensions | Length: 5.8 inches (150 mm), width: 3.2 inches (81 mm), height: 0.7–1.3 inches (18–33 mm) |
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