# TI-84 Plus series

> line of calculators

**Wikidata**: [Q393223](https://www.wikidata.org/wiki/Q393223)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/TI-84_Plus_series)  
**Source**: https://4ort.xyz/entity/ti-84-plus-series

## Summary
The TI-84 Plus series is a line of graphing calculators manufactured by Texas Instruments, an American multinational semiconductor company. The series includes various models such as the TI-84 Plus, TI-84 Plus Silver Edition, and TI-84 Plus CE. These calculators are classified as graphing calculators and are capable of running alternative operating systems, such as the open-source KnightOS.

## Key Facts
*   **Manufacturer:** Texas Instruments (an American company founded on December 6, 1930, headquartered in Dallas, United States).
*   **Product Type:** Graphing calculator / Calculator model series.
*   **Included Models:** TI-84 Plus, TI-84 Plus Silver Edition, and TI-84 Plus CE.
*   **Operating System Compatibility:** Capable of running KnightOS, an open-source Unix-like operating system.
*   **Industry Classification:** Electronics and semiconductor industry.
*   **Corporate Context:** As of 2021, Texas Instruments employed approximately 31,000 people.
*   **Library of Congress ID:** sh2004007339.

## FAQs
### Q: Who manufactures the TI-84 Plus series?
A: The TI-84 Plus series is manufactured by Texas Instruments, an American multinational semiconductor design and manufacturing company headquartered in Dallas.

### Q: What models are included in the TI-84 Plus series?
A: The series includes the standard TI-84 Plus, the TI-84 Plus Silver Edition, and the TI-84 Plus CE.

### Q: Can the TI-84 Plus series run operating systems other than the default?
A: Yes, the series supports KnightOS, which is an open-source Unix-like operating system designed for calculators.

## Why It Matters
The TI-84 Plus series serves as a prominent tool within the electronics and education sectors, produced by Texas Instruments, a major entity in the semiconductor industry established in 1930. As a specialized line of graphing calculators, these devices bridge the gap between basic computation and advanced mathematical processing.

The series is significant for its extensibility; it supports third-party software development, exemplified by its compatibility with KnightOS, a Unix-like operating system. This capability allows the hardware to function beyond its factory settings, offering a platform for open-source development and customization. The longevity of the product line is supported by Texas Instruments' extensive infrastructure, which includes thousands of employees and deep industry experience in electronics manufacturing.

## Notable For
*   **Classification:** Categorized as both a specific calculator model and a broader model series of graphing calculators.
*   **Extensibility:** Distinguished by the ability to run alternative operating systems like KnightOS.
*   **Heritage:** Produced by Texas Instruments, a foundational company in the semiconductor industry with a history dating back to 1930.
*   **Model Variations:** Features distinct editions such as the "Silver Edition" and "CE" variants.

## Body
### Overview and Classification
The TI-84 Plus series is a line of calculators classified as a "model series" and "graphing calculator." It functions as a subclass of calculators generally. The line is commercially known by several aliases, including the TI-84 Plus, TI-84 Plus Silver Edition, and TI-84 Plus CE.

### Manufacturer Profile
The series is produced by **Texas Instruments** (TI).
*   **Foundation:** TI was founded on December 6, 1930.
*   **Location:** The company is headquartered in Dallas, United States (coordinates: 32.91, -96.7525).
*   **Industry:** The company operates in the electronics and semiconductor industries.
*   **Scale:** As of the fiscal year ending December 31, 2021, Texas Instruments reported having 31,000 employees.

### Software and Capabilities
The hardware of the TI-84 Plus series is designed to support system-level customization. It is verified to run **KnightOS**, an open-source, Unix-like operating system tailored for calculators. This feature positions the device as a programmable platform for users requiring functionalities beyond the standard manufacturer OS.

### Identification and Records
The series is cataloged in several major databases:
*   **Library of Congress Authority ID:** sh2004007339
*   **National Library of Israel J9U ID:** 987007564086105171
*   **Freebase ID:** /m/02wtvn
*   **Yale Lux ID:** concept/999c03b0-1908-4c90-bcf4-d1f942d66f78

Official resources and community content are available through the `education.ti.com` website and Wikimedia Commons categories under "TI-84 Plus."

## References

1. [Source](https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap)
2. Freebase Data Dumps. 2013
3. National Library of Israel Names and Subjects Authority File