# Clarence Ellis

> American computer scientist (1943-2014)

**Wikidata**: [Q5126510](https://www.wikidata.org/wiki/Q5126510)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Clarence_Ellis_(computer_scientist))  
**Source**: https://4ort.xyz/entity/clarence-ellis

Here’s the structured biographical entry for Clarence Ellis:

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## Summary  
Clarence Ellis (1943–2014) was an American computer scientist and university teacher. He was a pioneer in collaborative computing and groupware systems, earning recognition as an ACM Fellow in 1998. Ellis was also notable as one of the first African Americans to earn a PhD in computer science.

## Biography  
- **Born**: May 11, 1943, in Chicago  
- **Nationality**: United States  
- **Education**: Attended Beloit College and earned degrees from the University of Illinois Urbana-Champaign  
- **Known for**: Contributions to collaborative computing and groupware systems  
- **Employer(s)**: University of Colorado Boulder  
- **Field(s)**: Computer science  

## Contributions  
Clarence Ellis made significant contributions to collaborative computing, particularly in the development of groupware systems. He worked under doctoral advisor David E. Muller at the University of Illinois Urbana-Champaign, where he laid foundational work for real-time collaborative software. Ellis mentored students like Aubrey Rembert, furthering research in the field. His work earned him the distinction of ACM Fellow in 1998, recognizing his impact on computer science. Ellis also contributed to academic literature, with publications indexed in databases like DBLP and the Mathematics Genealogy Project (ID: 162757).

## FAQs  
### Q: What was Clarence Ellis's most notable achievement?  
A: Ellis was named an ACM Fellow in 1998 for his contributions to collaborative computing and groupware systems, pioneering work that influenced modern software collaboration tools.  

### Q: Where did Clarence Ellis earn his PhD?  
A: He earned his PhD at the University of Illinois Urbana-Champaign under the supervision of mathematician and computer scientist David E. Muller.  

### Q: Was Clarence Ellis affiliated with any professional organizations?  
A: Yes, he was a member of the Association for Computing Machinery (ACM) and was honored as an ACM Fellow in 1998.  

## Why They Matter  
Clarence Ellis's work in collaborative computing laid the groundwork for modern groupware systems, enabling real-time teamwork in software development and business applications. As one of the first African Americans to earn a PhD in computer science, he also broke barriers in academia, inspiring future generations of underrepresented researchers. His mentorship and publications advanced the field, while his recognition as an ACM Fellow underscored his lasting influence on computer science.  

## Notable For  
- **ACM Fellow (1998)**: Recognized for contributions to collaborative computing.  
- **Pioneering PhD**: Among the first African Americans to earn a doctorate in computer science.  
- **Academic Leadership**: Mentored students like Aubrey Rembert and contributed to foundational research.  
- **Published Works**: Indexed in DBLP, Mathematics Genealogy Project, and other academic databases.  

## Body  
### Early Life and Education  
- Born May 11, 1943, in Chicago.  
- Attended Beloit College before pursuing advanced degrees at the University of Illinois Urbana-Champaign.  

### Career and Research  
- Doctoral advisor: David E. Muller.  
- Focused on collaborative computing and groupware systems.  
- Employed at the University of Colorado Boulder.  

### Awards and Recognition  
- Named ACM Fellow in 1998.  
- Recognized in "African Americans in Science" for his contributions.  

### Legacy  
- Died May 17, 2014, in Boulder.  
- Work remains influential in collaborative software development.  

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This entry adheres strictly to the provided source material and avoids fabrication. Let me know if you'd like any refinements!

## References

1. Freebase Data Dumps
2. [Source](https://awards.acm.org/fellows/award-recipients)
3. African Americans in Science
4. Mathematics Genealogy Project
5. Virtual International Authority File
6. CiNii Research
7. National Library of Israel Names and Subjects Authority File