Lynn Conway



Conway in 2006

Born: January 2, 1938 (age 86); Mount Vernon, New York, U.S.
Alma mater: Columbia University

Lynn Ann Conway (born January 2, 1938) is an American computer scientist, electrical engineer and transgender activist.

She worked at IBM in the 1960s and invented generalized dynamic instruction handling, a key advance used in out-of-order execution, used by most modern computer processors to improve performance. She initiated the Mead-Conway VLSI chip design revolution in very large scale integrated (VLSI) microchip design. That revolution spread rapidly through the research universities and computing industries during the 1980s, incubating an emerging electronic design automation industry, spawning the modern 'foundry' infrastructure for chip design and production, and triggering a rush of impactful high-tech startups in the 1980s and 1990s.

Conway grew up in White Plains, New York. Conway was shy and experienced gender dysphoria as a child. She became fascinated by astronomy (building a 6-inch (150 mm) reflector telescope one summer) and did well in math and science in high school. Conway entered MIT in 1955, earning high grades but ultimately leaving in despair after an attempted gender transition in 1957–58 failed due to the medical climate at the time. After working as an electronics technician for several years, Conway resumed education at Columbia University's School of Engineering and Applied Science, earning B.S. and M.S.E.E. degrees in 1962 and 1963.

Early research at IBM

Conway was recruited by IBM Research in Yorktown Heights, New York in 1964, and was soon selected to join the architecture team designing an advanced supercomputer, working alongside John Cocke, Brian Randell, Herbert Schorr, Ed Sussenguth, Fran Allen and other IBM researchers on the Advanced Computing Systems (ACS) project, inventing multiple-issue out-of-order dynamic instruction scheduling while working there. The Computer History Museum has stated that "the ACS machines appears to have been the first superscalar design, a computer architectural paradigm widely exploited in modern high-performance microprocessors."

Gender transition

After learning of the pioneering research of Harry Benjamin in treating transsexual women and realising that gender affirmation surgery was now possible, Conway sought his help and became his patient. After suffering from severe depression from gender dysphoria, Conway contacted Benjamin, who agreed to provide counseling and prescribe hormones. Under Benjamin's care, Conway began her medical gender transition.

While struggling with life in a male role, Conway had been married to a woman and had two children. Under the legal constraints then in place, she was denied access to their children after transitioning.

Although she had hoped to be allowed to transition on the job, IBM fired Conway in 1968 after she revealed her intention to transition. IBM apologized for this in 2020.

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