Private company
Callan Data Systems
Logo: Callan Data Systems, Public domain, via Wikimedia Commons3
Callan Data Systems, Inc. was an American computer manufacturer founded by David Callan in Westlake Village, California on January 24, 1980. The company was best known for their Unistar range of Unix workstations, and shut down again in 1985.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
Overview
See how the biggest companies compare on our leaderboards
Callan Data Systems, Inc. was an American computer manufacturer founded by David Callan in Westlake Village, California on January 24, 1980. The company was best known for their Unistar range of Unix workstations, and shut down again in 1985.2
Links
- WikipediaCallan Data Systems
- WikidataQ5021747
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataCallan Data Systems on Wikidata
- 2WikipediaCallan Data Systems on Wikipedia
- 3Wikimedia CommonsCallan Data Systems logo by Callan Data Systems, Public domain