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Robert Tappan Morris

b. 1965

American computer scientist; creator of Morris Worm; associate professor at MIT

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About Robert Tappan Morris

Born 1965. Robert Tappan Morris is an American computer scientist, entrepreneur, professor and y Combinator.

Early life and education Morris was born in 1965 to parents Robert Morris and Anne Farlow Morris. The senior Robert Morris was a computer scientist at Bell Labs, who helped design Multics and Unix; and later became the chief scientist at the National Computer Security Center, a division of the National Security Agency (NSA).

Morris grew up in the Millington section of Long Hill Township, New Jersey, attended The Peck School, and graduated from Delbarton School in 1983.

Morris attended Harvard University, and later went on to graduate school at Cornell University.

Morris worm

Morris's computer worm was developed in 1988, during his first year of graduate school at Cornell. He released the worm from MIT, rather than from Cornell. This was to avoid the worm being traced directly back to Cornell, where he was a Ph.D. student at the time. He was the first person to be indicted under this act. In December 1990, he was sentenced to three years of probation, 400 hours of community service, and a fine of $10,050 plus the costs of his supervision. He appealed, but his conviction was affirmed the following March. In 1995, Morris cofounded Viaweb with Paul Graham, a start-up company that made software for building online stores. It would go on to be sold to Yahoo for $49 million, which renamed the software Yahoo! Store. In 1999, Morris received his Ph.D. in Applied Sciences from Harvard for a thesis titled Scalable TCP Congestion Control. That same year, he was appointed as an assistant professor at MIT.

In 2005, Morris cofounded Y Combinator, a seed-stage startup venture capital funding firm that provides seed money, advice, and connections at two 3-month programs per year (with Paul Graham, Trevor Blackwell, and Jessica Livingston). In 2006, Morris was awarded tenure at MIT and became a technical advisor for Cisco Meraki. In 2008, released the programming language Arc, a Lisp dialect, alongside Paul Graham.

In 2010, Morris was awarded the 2010 Special Interest Group in Operating Systems (SIGOPS) Mark Weiser award. In 2015, Morris was elected a Fellow of Association for Computing Machinery (ACM, 2014) for "contributions to computer networking, distributed systems, and operating systems." In 2019, Morris was elected to the National Academy of Engineering.

Work Morris's principal research interest is computer network architectures, which includes work on distributed hash tables such as Chord and wireless mesh networks such as Roofnet.

He is a longtime friend and collaborator of Paul Graham. Along with cofounding two companies with him, Graham dedicated his book ANSI Common Lisp to Morris and named the programming language that generates the online stores' web pages RTML (Robert T. Morris Language) in his honor. Graham lists Morris as one of his personal heroes, saying that Morris is "never wrong."

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Important facts

Birth century
Nationality
Education
Harvard University, Cornell University, Massachusetts Institute of Technology, Harvard School of Engineering and Applied Sciences
Positions held
Full professor
Employers
Massachusetts Institute of Technology
Awards
Mark Weiser Award; ACM Fellow

Family & relationships

Parent
Robert Morris (cryptographer)

People in Robert Tappan Morris's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Robert Tappan Morris's

Frequently asked questions

Who is Robert Tappan Morris?

American computer scientist; creator of Morris Worm; associate professor at MIT

When was Robert Tappan Morris born?

Robert Tappan Morris was born on 8 November 1965 in Massachusetts.

What is Robert Tappan Morris's occupation?

Robert Tappan Morris is a computer scientist, entrepreneur, professor and y Combinator.

What nationality is Robert Tappan Morris?

Robert Tappan Morris is American.

Sources & further reading

Β· Wikipedia: Robert Tappan Morris

Β· Wikidata: Q92647

Β· DBpedia: Robert Tappan Morris

Cite this page

APA: Biography.guide. (2026). Robert Tappan Morris. https://biography.guide/robert-tappan-morris/

MLA: "Robert Tappan Morris." Biography.guide, https://biography.guide/robert-tappan-morris/.

Chicago: "Robert Tappan Morris." Biography.guide. https://biography.guide/robert-tappan-morris/.

Data last updated: 2026-09-20 Β· Spot an error? Report a correction.

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