HP 35s
Front view of the HP 35s
|
|
| Type | Programmable Scientific |
|---|---|
| Manufacturer | Hewlett-Packard |
| Introduced | 2007 |
| Design firm | Kinpo Electronics, Inc. |
| Cost | $59.99 USD |
| Calculator | |
| Entry mode | RPN, Infix |
| Precision | 15 digits ±499 exponent (internal) |
| Display type | LCD dot-matrix |
| Display size | 2×14 characters |
| CPU | |
| Processor | Sunplus/Generalplus SPLB31A (with 8502 core) |
| Programming | |
| Programming language(s) | Keystroke (fully merged) |
| User memory | 30 KB |
| Memory register | over 800 |
| Other | |
| Power supply | 2× CR2032 batteries |
| Weight | 125 g (4.4 oz) |
| Dimensions | 158 × 82 × 18.2 mm (6.22 × 3.23 × 0.72 in) |
The HP 35s (F2215A) is the latest in Hewlett-Packard's long line of non-graphing programmable scientific calculators. Although it is a successor to the HP 33s, it was introduced to commemorate the 35th anniversary of the HP-35, Hewlett-Packard's first pocket calculator (and the world's first pocket scientific calculator).
The HP 35s uses either Reverse Polish Notation (RPN) or algebraic infix notation as input.
Other features of the HP 35s include:
The HP 35s has been given a retro look reminiscent of classic HP calculators from the 1970s to the 1990s. However, it provides far more functions, processing power, and memory than most of those earlier models.
The physical appearance and keyboard layout of the HP 35s is very different than that of its immediate predecessor, the HP 33s, but the two calculators are functionally very similar. The primary differences are:
HP has released a free-of-charge 35s emulator for the Windows operating system (and Wine). This was previously only available to teachers for classroom demonstration purposes.
The HP 35s was designed by Hewlett-Packard in conjunction with Kinpo Electronics of Taiwan, which manufactures the calculator for HP in mainland China.
According to HP, the calculator has been engineered for heavy-duty professional use, and has been tested under extreme environmental conditions. It is built using 25 screws for rigidity and ease of maintenance.
The case features many design elements from 1970s HP calculators such as the ground-breaking HP-65, including a black case with silver-striped curved sides, slope-fronted keys, and gold and blue shift keys. The faceplate is metal, bonded to the plastic case. The key legends are printed, rather than the double-shot moulding used in the vintage models.
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