# HP-18C

> Hewlett-Packard financial calculator

**Wikidata**: [Q5635544](https://www.wikidata.org/wiki/Q5635544)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/HP-18C)  
**Source**: https://4ort.xyz/entity/hp-18c

## Summary
The HP-18C is a financial calculator manufactured by the American information technology company Hewlett-Packard. Introduced in 1986, it is classified as a specialized electronic device designed for financial calculations. It serves as a distinct model within Hewlett-Packard's portfolio of computer hardware.

## Key Facts
*   **Product Type:** Financial calculator (subclass of calculator).
*   **Manufacturer:** Hewlett-Packard, an American information technology company.
*   **Introduction Date:** 1986 (derived from visual resource metadata).
*   **Manufacturer Origin:** United States.
*   **Manufacturer Headquarters:** Palo Alto, California.
*   **Manufacturer Founding:** Hewlett-Packard was founded on July 2, 1939.
*   **Library of Congress ID:** sh87000634.
*   **Freebase ID:** /m/03ck9_.

## FAQs
### Q: What type of device is the HP-18C?
A: The HP-18C is a financial calculator, which is a specific subclass of electronic calculators designed for business and financial computations.

### Q: Who manufactured the HP-18C?
A: The device was manufactured by Hewlett-Packard, a major American information technology company founded in 1939.

### Q: When was the HP-18C introduced?
A: According to archival image data associated with the device, the HP-18C was introduced in 1986.

### Q: What industry does the manufacturer of the HP-18C belong to?
A: Hewlett-Packard operates within the computer hardware, software, and information technology industries.

## Why It Matters
The HP-18C represents a specific era of dedicated business electronics produced by Hewlett-Packard (HP), a pioneering company in the United States technology sector. While modern computing is often dominated by general-purpose software, devices like the HP-18C were essential tools for professionals in finance, offering dedicated hardware for complex calculations prior to the ubiquity of smartphones and advanced spreadsheets.

Manufactured by HP—a company founded in 1939 in Palo Alto and instrumental in the rise of Silicon Valley—the calculator reflects the company's expansion beyond laboratory instruments and computers into personal productivity tools. The device falls under the category of "financial calculator," distinguishing it from scientific or graphing calculators, indicating its specific utility for time-value-of-money, amortization, and other business math applications. The inclusion of a dedicated Library of Congress authority ID (sh87000634) further underscores its recognition as a distinct and cataloged subject within information science and historical archives.

## Notable For
*   **Classification:** Specifically designated as a "financial calculator," distinct from general-purpose or scientific models.
*   **Pedigree:** Produced by Hewlett-Packard, a founder of the Silicon Valley hardware industry.
*   **Timeline:** Introduced in 1986, placing it within the mid-1980s era of portable business electronics.
*   **Cataloging:** Assigned a unique Library of Congress Authority ID (sh87000634), verifying its standing in bibliographic records.

## Body
### Product Identity and Classification
The HP-18C is identified structurally as a "calculator" with a specific subclassification as a "financial calculator." It is an electronic device created for the purpose of performing mathematical functions relevant to the finance industry.

### Manufacturer: Hewlett-Packard
The device is a product of **Hewlett-Packard** (often referred to as HP).
*   **Company Status:** An American information technology company.
*   **Founding:** The company was established on July 2, 1939.
*   **Location:** Headquartered in Palo Alto, United States.
*   **Industry Scope:** HP operates across the computer hardware, software, and broader information technology industries.
*   **Scale:** Historical data indicates the company maintained a significant workforce, with 302,000 employees recorded in 2014.

### Historical Context
Based on visual and archival metadata provided in structured sources, the HP-18C was **introduced in 1986**. It is associated with the "Pioneer" series architecture often utilized by HP during that period, though the strict source text confirms only the introduction year and manufacturer.

### Identifiers and Data Sources
The entity holds several unique identifiers across knowledge graphs and library systems:
*   **Wikidata:** Associated with the English Wikipedia title "HP-18C" and Commons category "HP-18C."
*   **Library of Congress:** Authority ID `sh87000634`.
*   **National Library of Israel:** J9U ID `987007536789705171`.
*   **Freebase:** Machine ID `/m/03ck9_`.

## References

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