John Ousterhout
Creator of the Tcl/Tk development environment
About John Ousterhout
Born 1954. John Ousterhout is an American computer scientist, engineer, programmer, university teacher, physicist and academic, known for Magic (software), Tcl and Tk (framework).
John Kenneth Ousterhout (, born October 15, 1954) is an American computer scientist. He is a professor of computer science at Stanford University. He founded Electric Cloud with John Graham-Cumming.
Ousterhout was previously a professor of computer science at University of California, Berkeley, where he created the Tcl scripting language and the Tk platform-independent widget toolkit, and proposed the idea of coscheduling. Ousterhout led the research group that designed the experimental Sprite operating system and the first log-structured file system. Ousterhout also led the team that developed the Magic VLSI computer-aided design (CAD) program.
Education and career He received a Bachelor of Science (B.S.) in physics from Yale University in 1975, and his Ph.D. in computer science from Carnegie Mellon University in 1980.
Ousterhout received the Grace Murray Hopper Award in 1987 for his work on electronic design automation CAD systems for very-large-scale integrated circuits. For the same work, he was inducted in 1994 as a Fellow of the Association for Computing Machinery. Ousterhout was elected a member of the National Academy of Engineering in 2001 for improving our ability to program computers by raising the level of abstraction.
In 1994, Ousterhout left Berkeley to join Sun Microsystems Laboratories, which hired a team to join him in Tcl development. After several years at Sun, he left and co-founded Scriptics, Inc. (later renamed Ajuba Solutions) in January 1998 to provide professional Tcl development tools. Most of the Tcl team followed him from Sun. Ajuba was purchased by Interwoven in October 2000. He joined the faculty of Stanford University in 2008.
Selected works
A Philosophy of Software Design, (Yaknyam Press, 2018, )
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Important facts
People in John Ousterhout's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped John Ousterhout's
Frequently asked questions
Who is John Ousterhout?
creator of the Tcl/Tk development environment
When was John Ousterhout born?
John Ousterhout was born on 15 October 1954 in Solano County.
What is John Ousterhout's occupation?
John Ousterhout is a computer scientist, engineer, programmer, university teacher, physicist and academic.
What is John Ousterhout known for?
John Ousterhout is known for Magic (software), Tcl and Tk (framework).
What nationality is John Ousterhout?
John Ousterhout is American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). John Ousterhout. https://biography.guide/john-ousterhout/
MLA: "John Ousterhout." Biography.guide, https://biography.guide/john-ousterhout/.
Chicago: "John Ousterhout." Biography.guide. https://biography.guide/john-ousterhout/.
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