# Dartmouth Time Sharing System

> time-sharing operating system

**Wikidata**: [Q4348530](https://www.wikidata.org/wiki/Q4348530)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Dartmouth_Time-Sharing_System)  
**Source**: https://4ort.xyz/entity/dartmouth-time-sharing-system

## Summary
The Dartmouth Time Sharing System (DTSS) is a time-sharing operating system developed by Dartmouth College. It is a specific instance of system software designed to manage computer hardware resources, notably running on the GE-200 series and GE-600 series platforms. The system entered service on May 1, 1964, and was retired in 1999.

## Key Facts
- **Classification:** Time-sharing operating system (instance of system software).
- **Developer:** Dartmouth College.
- **Service Period:** Entered service on May 1, 1964; retired in 1999.
- **Hardware Platforms:** GE-200 series and GE-600 series.
- **Common Abbreviations:** DTSS, Dartmouth timesharing system.
- **Website:** http://dtss.dartmouth.edu/
- **Multilingual Aliases:** 达特茅斯分时系统 (Chinese), 達特茅斯分時系統 (Traditional Chinese).
- **Wikipedia Presence:** Available in 8 languages including English, German, Spanish, French, Japanese, Korean, and Finnish.

## FAQs
### Q: Who developed the Dartmouth Time Sharing System?
A: The Dartmouth Time Sharing System was developed by Dartmouth College. It serves as a historical example of an operating system created by an academic institution to manage hardware resources.

### Q: What hardware platforms did the Dartmouth Time Sharing System support?
A: This operating system was designed to run on the GE-200 series and GE-600 series of computer hardware.

### Q: How long was the Dartmouth Time Sharing System in operation?
A: The system had a lifespan of approximately 35 years. It officially entered service on May 1, 1964, and was retired in 1999.

## Why It Matters
As an operating system, the Dartmouth Time Sharing System represents a critical implementation of system software designed to manage computer hardware resources. Operating systems solve the fundamental problem of coordinating complex hardware components—such as processors, memory, and storage—and allocating them to various applications or users. By abstracting the complexity of the underlying GE-200 and GE-600 series hardware, DTSS provided a usable environment for computing, embodying the essential role of an OS in making hardware usable for broader academic and computational tasks.

## Notable For
- **Long Operational Lifespan:** The system is notable for its extensive service period, spanning from 1964 to 1999.
- **Academic Origin:** It is a significant example of an operating system developed directly by a higher education institution (Dartmouth College) rather than a commercial software company.
- **Time-Sharing Implementation:** It is a distinct instance of a "time-sharing operating system," a type of OS that allows multiple users to access the computer resources concurrently.

## Body
### Identity and Classification
The Dartmouth Time Sharing System (DTSS) is a time-sharing operating system. In the hierarchy of software, it is an instance of an **operating system**, which is a subclass of system software. Operating systems act as the intermediary between computer hardware and applications, providing a consistent environment for program execution.

**Aliases and Nomenclature**
The system is known by several names and abbreviations across different contexts:
*   **Common Abbreviations:** DTSS, Dartmouth timesharing system.
*   **International Titles:** 达特茅斯分时系统, 達特茅斯分時系統.

### History and Development
The development and lifecycle of the Dartmouth Time Sharing System are marked by specific milestones:
*   **Developer:** The system was created by **Dartmouth College**.
*   **Service Entry:** The system officially entered service on **May 1, 1964**.
*   **Retirement:** After a run of several decades, the system was retired in **1999**.

### Technical Platform
The Dartmouth Time Sharing System was built to operate on specific hardware architectures. It functioned as the management layer for the following computing platforms:
*   **GE-200 series**
*   **GE-600 series**

### Digital Presence and Documentation
The system maintains a digital footprint through various knowledge bases and archives:
*   **Official Website:** Documentation and historical information are hosted at `http://dtss.dartmouth.edu/`.
*   **Wikipedia and Wikidata:** The entity has a Wikipedia title of "Dartmouth Time-Sharing System" and is categorized under "Dartmouth Time Sharing System" on Wikimedia Commons. It has a sitelink count of 8, appearing in languages such as English (en), German (de), Spanish (es), French (fr), Japanese (ja), Korean (ko), and Finnish (fi).
*   **Identifiers:** The system holds the Freebase ID `/m/02z1sx`.

## References

1. Freebase Data Dumps. 2013