Clarence Ellis (computer scientist), Date of Birth, Place of Birth, Date of Death
TweetClarence Ellis (computer scientist)
American computer scientist
Date of Birth: 11-May-1943
Place of Birth: Chicago, Illinois, United States
Date of Death: 17-May-2014
Profession: computer scientist
Nationality: United States
Zodiac Sign: Taurus 
About Clarence Ellis (computer scientist)
- Clarence "Skip" Ellis (May 11, 1943 – May 17, 2014) was an American computer scientist, and Emeritus Professor of Computer Science and Cognitive Science at the University of Colorado at Boulder.
- While at the CU-Boulder, he was the director of the Collaboration Technology Research Group and a member of the Institute of Cognitive Science.
- Ellis was the first African-American to earn a Ph.D.
- in Computer Science (1969), and the first African-American to be elected a Fellow of the ACM (1997).
- Ellis was a pioneer in Computer Supported Cooperative Work (CSCW) and Groupware.
- He and his team at Xerox PARC created OfficeTalk, one of the first groupware systems.
- Ellis also pioneered Operational Transformation, which is a set of techniques that enables real-time collaborative editing of documents.
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