# HP-15C

> Programmable scientific calculator produce by Hewlett-Packard

**Wikidata**: [Q1565774](https://www.wikidata.org/wiki/Q1565774)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/HP-15C)  
**Source**: https://4ort.xyz/entity/hp-15c

## Summary
The HP-15C is a programmable scientific calculator produced by Hewlett-Packard, designed for advanced mathematical calculations and programming capabilities.

## Key Facts
- It is a programmable scientific calculator manufactured by Hewlett-Packard
- Introduced in 1982 (based on the image caption)
- Features a liquid-crystal display
- Classified as a calculator device
- Produced by Hewlett-Packard, an American IT company founded in 1939
- Has been cataloged in multiple reference systems including Library of Congress and National Library of Israel

## FAQs
### Q: What is the HP-15C?
A: It's a programmable scientific calculator produced by Hewlett-Packard.

### Q: When was the HP-15C introduced?
A: It was introduced in 1982.

### Q: What company manufactures the HP-15C?
A: Hewlett-Packard manufactures the HP-15C.

### Q: What type of display does the HP-15C have?
A: It features a liquid-crystal display.

## Why It Matters
The HP-15C represents a significant advancement in scientific calculator technology, offering programmability alongside advanced mathematical functions. It was designed to meet the needs of engineers, scientists, and professionals requiring sophisticated computational capabilities beyond standard calculators. The calculator's programmability allowed users to create custom functions and solutions, making it particularly valuable for complex mathematical problems and technical applications. Its long production run and continued availability demonstrate its enduring utility and the high standards of engineering established by Hewlett-Packard in calculator design.

## Notable For
- It was one of the first programmable scientific calculators with advanced mathematical capabilities
- Maintained production for decades, demonstrating its long-term utility and reliability
- Featured a liquid-crystal display technology
- Was manufactured by Hewlett-Packard, a leading American technology company
- Included programming capabilities that allowed users to create custom mathematical functions

## Body
### Technical Specifications
The HP-15C utilizes a liquid-crystal display technology for its screen. It was manufactured by Hewlett-Packard, an American information technology company that operated from 1939 to 2015. The calculator was introduced in 1982 and is classified as a programmable scientific calculator.

### Manufacturing Context
Hewlett-Packard, the manufacturer, had its headquarters in Palo Alto, California. The company was founded on July 2, 1939, and was involved in the computer hardware and software industries. At various points in its history, HP employed between 48,000 and 302,000 people.

### Cataloging and Identification
The HP-15C has been cataloged in multiple reference systems:
- Library of Congress authority ID: sh92006690
- National Library of Israel J9U ID: 987007541798405171

### Design and Functionality
As a programmable scientific calculator, the HP-15C offered users the ability to create custom mathematical programs and functions. This feature distinguished it from standard calculators and made it particularly valuable for technical professionals who needed specialized computational tools. The calculator's design emphasized functionality and reliability, characteristics that contributed to its long production run.

## References

1. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
2. National Library of Israel Names and Subjects Authority File