HP 30 series

Last updated

HP-30 series
HP 33C calculator-2.jpg
The HP-33C
Type Programmable scientific
Manufacturer Hewlett-Packard
Introduced1978
Discontinued1983
Calculator
Entry mode RPN
Precision10 display digits exponent ±99
Display type LED
Display size1 line
CPU
Processor Saturn [1] (Lewis)
Programming
Programming language(s) RPN key stroke (fully merged)
Firmware memory? KB of ROM
Interfaces
Portsno
Other
Power supply2×1.5V AA cell batteries or power supply
Weight6 oz (170 g) to 8 oz (230 g)
Dimensions141×75×29mm

The HP-30 or Spice series are RPN scientific hand-held calculators introduced by Hewlett-Packard in 1978. Some models are programmable.

Contents

The HP-32E HP 32E calculator - pi in display.jpg
The HP-32E

Overview

Perhaps the HP-30 series, Spice, was to be released as a replacement for the aging HP-20 series. [2] [3] It has no expandability. The display provided better readability by increasing the digit size and adding commas.

The entry-level models were the HP-31E and 32E, which were not programmable, but even the 31E provided a self-check function. [4]

The HP-37E and 38E/C were the financial models of the Spice series.

The battery of these calculators can be changed without using tools. The housing is closed by screws. [5]

Programming

The HP-33E/C (49 steps plus subroutines), [6] HP-34C (70 steps) [7] and 38E/C (99 steps) [3] are programmable. The C-suffixed models have a continuous memory.

The production of the 31E ended in 1980, [8] production of the other Spice models ended in 1983. [7] This calculator is well regarded in terms of quality, key stroke feel and daily usability for engineers.

Simulators and emulators

Features

See also

References

  1. ↑ "HP CPU and Programming". Museum of HP Calculators. Retrieved 2022-02-27.
  2. ↑ "30 Series Technology and Packaging". www.hpmuseum.org. Retrieved 2022-02-27.
  3. 1 2 3 "HP-38C Features". Museum of HP Calculators. Retrieved 2022-02-27.
  4. ↑ "HP-31E". Museum of HP Calculators. Retrieved 2022-02-27.
  5. ↑ "HP-Models". thimet.de. Retrieved 2022-02-27.
  6. ↑ "HP-33E/C". Museum of HP Calculators. Retrieved 2022-02-27.
  7. 1 2 "HP-34C" . Retrieved 2022-02-27.
  8. ↑ "HP-31E".
  9. ↑ "HP-32E". Museum of HP Calculators. Retrieved 2022-02-27.
  10. ↑ "HP-37E Features". Museum of HP Calculators. Retrieved 2022-02-27.
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