 HP-35 (1st version) scientific electronic pocket calculator | |
| 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 | |
| Firmware memory | 768 bytes x 10 bits |
| Memory register | Four-register operational stack with one memory register. |
| Other | |
| Power supply | Internal rechargeable three cell 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) |
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.
- ^ "HP-35 Scientific Calculator Awarded IEEE Milestone". Ieee.org. Archived from the original on 2012-09-05. Retrieved 2012-05-17.