Jeffery D. Stein

Founder and Chairman of the IT History Society, Stein has also served as the Founder and CEO of On-Line Business Systems and Convene.com, and has been active on many boards and non-profits.

Joy Buolamwini

Founder of the Algorithmic Justice League (AJL), Buolamwini founded an organization dedicated to challenging bias in decision-making software through art, advocacy, and research. Her work highlighted the social implications and harms of...

Ethel Cox Marden

Participant in the creation of the first computer languages, Marden went to work for the National Bureau of Standards after World War II, serving as a mathematician and administrator. She served as...

Evgenii Mikhailovich Landis

Co-inventor of the AVL tree data structure, Landis worked with Georgy Adelson-Velsky to produce one of the most influential innovations in computer science. In 1946, Aleksandr Kronrod and Landis reinvented Sard's Lemma, which...

Diana Marculescu

Pioneer in energy-aware computing, Marculescu developed novel power management techniques to improve the performance delivered per unit of energy consumed for computer hardware and software. She received her Dipl. Ing. degree in...

Bernard Galler

American mathematician and computer scientist at the University of Michigan, Galler was involved in the development of large-scale operating systems and computer languages, including the MAD programming language and the Michigan Terminal...

Leonard Max Adleman

Co-inventor of the RSA (Rivest-Shamir-Adleman) cryptosystem, Adleman is a theoretical computer scientist and professor of computer science and molecular biology at the University of Southern California. RSA is in widespread use in...

Semen Nikolaevich Korsakov

Noted homeopath and early information technology inventor, Korsakov took part in the Napoleonic Wars with the Russian Army from 1812–1814. He later served as an official in the statistics department of the...

Jerzy Witold Różycki

Inventor of the "clock" method for determining Enigma rotor positions, Różycki was a Polish mathematician and cryptologist who worked at breaking German Enigma-machine ciphers. He was born in what is now Ukraine,...

Alexey Leonidovich Pajitnov

Creator of Tetris, Pajitnov developed the iconic game with the help of Dmitry Pavlovsky and Vadim Gerasimov in 1985. The game, first available in the Soviet Union, appeared in the West in...

Bob (Boe) Overton Evans

At IBM, Evans led the groundbreaking development of compatible computers that changed the industry. He persuaded IBM's chairman, Thomas J. Watson Jr., to discontinue the company's development of a hodgepodge of incompatible...

Gladys West

Recognized for her contributions to mathematical modeling of the shape of the Earth, West was an African American mathematician whose work on satellite geodesy models was later incorporated into the Global Positioning...

Shawn Fanning

Developed Napster, one of the first popular peer-to-peer filesharing platforms

Carl Georg Lange Barth

Improver and popularizer of the industrial use of compound slide rules in scientific management, Barth was a Norwegian-American mathematician and mechanical engineer. He was born in Christiania, Norway, and graduated from the...

M. Kenneth Oshman

Co-founder of ROLM Corporation, a telecommunications equipment company, Oshman helped establish the firm in 1969 and served as its CEO, President, and director until its merger with IBM in 1984. Having grown up...

Edward J. Seminaro

Leader of the team responsible for establishing and executing the system design of IBM's pSeries and iSeries UNIX product family, Seminaro has served as the Chief Hardware System Architect for IBM's Power...

John W. Thompson

Chairman of Microsoft, Thompson is also a former vice-president at IBM and former Chief Executive Officer (CEO) of Symantec Corporation. Thompson has served as Chairman of the Board of Directors of Symantec...

Daniel Singer Bricklin

Co-creator of VisiCalc, the first spreadsheet program available for personal computers, Bricklin co-founded Software Arts, Inc. with Frankston in 1979 and began selling VisiCalc that same year. He was given a Grace...

Coraline Ada Ehmke

Creator of the Contributor Covenant and the Post-Meritocracy Manifesto, Ehmke was a leading advocate for codes of conduct in open source projects and communities. She founded the Organization for Ethical Source and...

Yakov Rekhter

One of the leading architects and a major software developer of the NSFNET Backbone Phase II, Rekhter also co-designed the Border Gateway Protocol (BGP), the core routing protocol of the Internet. Rekhter joined...