# Fernando J. Corbató

> American computer scientist (1926–2019)

**Wikidata**: [Q92625](https://www.wikidata.org/wiki/Q92625)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Fernando_J._Corbató)  
**Source**: https://4ort.xyz/entity/fernando-j-corbato

## Summary
Fernando J. Corbató was an American computer scientist known for his pioneering work on time-sharing operating systems. He led the development of the Compatible Time-Sharing System (CTSS) at the Massachusetts Institute of Technology, an early and influential system that transformed computer interaction. His contributions significantly advanced the accessibility and utility of computers.

## Biography
*   Born: July 1, 1926, Oakland
*   Died: July 12, 2019, Newburyport
*   Nationality: United States
*   Education: Bachelor of Science from California Institute of Technology (1950), Doctor of Philosophy from Massachusetts Institute of Technology (1956)
*   Known for: Compatible Time-Sharing System
*   Employer(s): Massachusetts Institute of Technology
*   Field(s): computer scientist, university teacher, time-sharing

## Contributions
Fernando J. Corbató's most significant contribution was his leadership in the development of the Compatible Time-Sharing System (CTSS) at the Massachusetts Institute of Technology. Initiated in 1961, CTSS was an early and influential time-sharing operating system designed for the IBM 7090 mainframe. This system allowed multiple users to simultaneously access a single computer, a radical departure from the previous batch processing method where users had to wait for their programs to run sequentially. CTSS made computers more interactive and accessible, fundamentally changing how people interacted with computing resources. This work laid crucial groundwork for modern operating systems and the concept of interactive computing, enabling the development of personal computing and networked environments. Corbató's efforts with CTSS demonstrated the feasibility and benefits of shared computing resources, paving the way for widespread computer usage and development.

## FAQs
### Q: What is Fernando J. Corbató primarily known for?
A: Fernando J. Corbató is primarily known for his pioneering work on time-sharing operating systems, particularly leading the development of the Compatible Time-Sharing System (CTSS) at MIT. This system allowed multiple users to interact with a single computer simultaneously.

### Q: Where did Fernando J. Corbató work and study?
A: Fernando J. Corbató was employed by the Massachusetts Institute of Technology. He earned his Bachelor of Science degree from the California Institute of Technology in 1950 and his Doctor of Philosophy degree from the Massachusetts Institute of Technology in 1956.

### Q: What notable awards did Fernando J. Corbató receive?
A: Fernando J. Corbató received several prestigious awards, including the Turing Award in 1990, the Computer History Museum Fellow award in 2012, and the Harry H. Goode Memorial Award in 1980. He was also an ACM Fellow and a member of the National Academy of Engineering.

## Why They Matter
Fernando J. Corbató matters because his work fundamentally transformed the way humans interact with computers. Before his development of the Compatible Time-Sharing System (CTSS), computers were largely inaccessible, operating in a batch processing mode where users submitted tasks and waited for results. CTSS, an early and influential time-sharing operating system, revolutionized this by allowing multiple users to simultaneously access and interact with a single mainframe computer. This innovation made computing resources far more efficient, collaborative, and user-friendly. Corbató's vision and leadership in this area laid the essential groundwork for modern interactive computing, graphical user interfaces, and the very concept of personal computers. Without his contributions, the evolution of operating systems and the widespread adoption of computing as we know it today would have been significantly delayed or taken a different path, making him a pivotal figure in computer science history.

## Notable For
*   Recipient of the Turing Award in 1990 for his pioneering work on time-sharing operating systems.
*   Led the development of the Compatible Time-Sharing System (CTSS), an early and influential time-sharing operating system at MIT.
*   Inducted as a Computer History Museum Fellow in 2012.
*   Member of the National Academy of Engineering (1976) and an ACM Fellow (1994).
*   His work on time-sharing made computers more interactive and accessible, laying groundwork for modern operating systems.

## Body

### Personal Life and Education
Fernando J. Corbató was born on July 1, 1926, in Oakland. He passed away on July 12, 2019, in Newburyport, due to diabetes. He was a citizen of the United States. Corbató earned his Bachelor of Science degree from the California Institute of Technology in 1950. He continued his education at the Massachusetts Institute of Technology, where he received his Doctor of Philosophy degree in 1956. His doctoral advisor at MIT was John C. Slater.

### Career and Contributions
Corbató was a computer scientist and university teacher, primarily employed by the Massachusetts Institute of Technology. He was interested in time-sharing, a field in which he made significant contributions. His most notable work includes the Compatible Time-Sharing System (CTSS), an early and influential time-sharing operating system developed at MIT in 1961 for the IBM 7090 mainframe. This system was crucial in enabling multiple users to interact with a single computer simultaneously, a paradigm shift from previous batch processing methods. His work on CTSS is recognized for its impact on computer accessibility and interaction. He also had doctoral students, including Jerry Saltzer (1966) and Akira Sekino.

### Awards and Recognition
Corbató received numerous accolades for his work:
*   W. Wallace McDowell Award (1966)
*   Harry H. Goode Memorial Award (1980)
*   Turing Award (1990)
*   ACM Fellow (1994)
*   Computer History Museum Fellow (2012)

### Memberships and Affiliations
Fernando J. Corbató was a member of several prestigious organizations:
*   American Academy of Arts and Sciences
*   National Academy of Engineering (inducted 1976)
*   Association for Computing Machinery (ACM Fellow, 1994)

His archives are held at the Computer History Museum and the Massachusetts Institute of Technology Libraries. He participated in World War II.

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## References

1. [Source](https://www.computerhistory.org/fellowawards/hall/fernando-corbat/)
2. [Fernando Corbató, a Father of Your Computer (and Your Password), Dies at 93](https://www.nytimes.com/2019/07/12/science/fernando-corbato-dead.html)
3. [Source](https://amturing.acm.org/award_winners/corbato_1009471.cfm)
4. [Source](https://awards.acm.org/fellows/award-recipients)
5. [Source](https://www.computer.org/volunteering/awards/goode)
6. [Mathematics Genealogy Project](http://www.genealogy.ams.org/id.php?id=104805)
7. [Mathematics Genealogy Project](http://www.genealogy.ams.org/id.php?id=104301)
8. Mathematics Genealogy Project
9. International Standard Name Identifier
10. CiNii Research
11. [Dr. Fernando J. Corbato](https://www.nae.edu/29551/wd)
12. [Source](http://www.computerhistory.org/collections/catalog/102658041)
13. [Source](https://archivesspace.mit.edu/repositories/2/resources/866)
14. SNAC
15. Freebase Data Dumps. 2013
16. Virtual International Authority File
17. [Source](https://oralhistory.library.ucla.edu/catalog/21198-zz002jxzjm)