# Version 10 Unix

> 10th Edition of Research Unix alias UNIX Time-Sharing System

**Wikidata**: [Q106062229](https://www.wikidata.org/wiki/Q106062229)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Version_10_Unix)  
**Source**: https://4ort.xyz/entity/version-10-unix

## Summary
Version 10 Unix, also known as UNIX Time-Sharing System V10, is the 10th edition of Research Unix. It was a research operating system developed at Bell Labs that succeeded Version 9 Unix and was later replaced by UNIX System III.

## Key Facts
- Version 10 Unix is the 10th edition of Research Unix, also known as UNIX Time-Sharing System V10
- It succeeded Version 9 Unix as the next iteration in the Research Unix series
- It was replaced by UNIX System III in the evolution of Unix operating systems
- The rc command line interpreter was created for Version 10 Unix and later used in Plan 9 operating systems
- It has a Wikipedia page titled "Version 10 Unix" with content in English
- It is classified as an operating system and is distinct from AT&T UNIX

## FAQs
### Q: What is Version 10 Unix?
A: Version 10 Unix is the 10th edition of Research Unix, also known as UNIX Time-Sharing System V10. It was a research operating system developed at Bell Labs that succeeded Version 9 Unix and was later replaced by UNIX System III.

### Q: What operating system replaced Version 10 Unix?
A: UNIX System III replaced Version 10 Unix in the evolution of Unix operating systems.

### Q: What is rc and how is it related to Version 10 Unix?
A: rc is a command line interpreter that was created for Version 10 Unix and later used in Plan 9 operating systems. It was developed in 1989.

## Why It Matters
Version 10 Unix represents an important milestone in the evolution of Unix operating systems at Bell Labs. As the 10th edition of Research Unix, it continued the tradition of experimental development that characterized the Research Unix series. While it was eventually replaced by UNIX System III, Version 10 Unix contributed to the ongoing research and development of Unix concepts and features. The operating system's development of tools like the rc command line interpreter demonstrates its role in advancing Unix technology, with some innovations like rc finding continued use in later systems such as Plan 9. Understanding Version 10 Unix helps provide context for the broader history of Unix development and the transition from research-focused Unix versions to more commercially-oriented variants.

## Notable For
- Being the 10th edition in the Research Unix series
- Introducing the rc command line interpreter, which later influenced Plan 9
- Representing the final Research Unix version before the transition to UNIX System III
- Continuing the experimental development tradition of Bell Labs Unix research
- Maintaining the distinction from AT&T UNIX while advancing Unix concepts

## Body
### Development and Position in Unix History
Version 10 Unix was developed at Bell Labs as part of the Research Unix series. It followed Version 9 Unix and represented the 10th iteration in this research-focused line of Unix operating systems. The system was developed during a period when Unix was evolving both as a research platform and as a commercial product.

### Technical Contributions
One of the notable technical contributions from Version 10 Unix was the development of the rc command line interpreter. Created in 1989, rc was specifically designed for Version 10 Unix and later found use in Plan 9 operating systems, demonstrating the lasting influence of innovations from this Research Unix version.

### Relationship to Other Unix Variants
Version 10 Unix is classified as distinct from AT&T UNIX, maintaining the separation between the research-oriented Unix developments at Bell Labs and the commercial Unix products from AT&T. This distinction was important in the broader Unix ecosystem, where different versions served different purposes and audiences.

### Legacy and Replacement
The operating system was eventually replaced by UNIX System III, marking a transition point in Unix history from the research-focused versions to more standardized and commercially-oriented Unix systems. This replacement reflected the changing needs and directions of Unix development during this period.