John C. Freeman

Co-developer of numerical models used in making the first successful computer weather forecasts, Freeman is recognized as a pioneer whose work made today's computer models for weather prediction possible. A native Houstonian and...

Peter M. Schnell

Founder of Software AG, Schnell established the company in 1969. He developed the ADABAS Data Management System and the NATURAL Fourth Generation Language, which became foundational contributions to enterprise software. In 1992,...

Robert Marco Tomasulo

Inventor of the Tomasulo algorithm, a computer architecture hardware algorithm for dynamic scheduling of instructions that allows out-of-order execution, Tomasulo was the recipient of the 1997 Eckert–Mauchly Award, "for the ingenious Tomasulo...

Algirdas Avizienis

Organizer and director of the JPL STAR research project from 1961 to 1972, Avizienis is a Lithuanian-born computer scientist whose effort resulted in the construction and evaluation of the experimental JPL STAR...

Icer Addis

Author of the NESticle, Genecyst, and Callus emulators, Addis is considered a legendary figure in the emulation scene. He co-founded Bloodlust Software with his friend Ethan Petty. Working independently under the Bloodlust...

Patrick Cousot

Co-inventor of Abstract Interpretation, a theory of sound approximation of mathematical structures, Cousot developed this influential technique in formal methods together with his wife Radhia in 1975. In the 2000s, he worked...

Dewang Mehta

Credited with a large portion of India's momentous rise as a "software giant," Mehta transformed the country's fledgling software industry into a global force. Born in Umreth, Gujarat, India, he was an...

Craig Alexander Newmark

Founder of Craigslist, the San Francisco-based website, Newmark is an Internet entrepreneur.

David E. Liddle

Leader of the development of the groundbreaking Xerox Star computer system, Liddle is credited with establishing the precedent-setting design for graphical user interfaces. He arrived at Xerox PARC in time to help with...

Georgy Adelson-Velsky

Co-inventor of the AVL tree and head developer of the Kaissa chess computer, Adelson-Velsky made foundational contributions to both computer science and computer chess. In 1962, Georgy and E.M. Landis published a...

Leon D. Harmon

Codeveloper of the Photomosaic and pioneer of computerized human-face identification, Harmon worked at Bell Labs where he pursued research in human perception, computer vision, and graphics. He started his career as a...

Hans C. Pfeiffer

Inventor of PREVAIL, IBM's E-Beam Projection approach for Next Generation Lithography, Pfeiffer was a physicist best known for his contributions to the development of electron beam lithography (often abbreviated as e-beam lithography),...

Gordon (Tommy) Eric Thomas

Pioneer in the design of 'Baby', the first stored program computer, Thomas graduated in Physics and Electronic Engineering at the University of Manchester in 1948, joining the design team of Professors F.C....

Jean Amédée Hoerni

Developer of the planar process, the manufacturing process by which modern integrated circuits are built, Hoerni was a silicon transistor pioneer and a member of the Traitorous Eight. Hoerni was born in...

Arthur Scherbius

Inventor of the cryptographic machine Enigma, Scherbius founded the company to manufacture it and transformed the history of wartime communications. He was born in Frankfurt am Main and studied electricity at the...

John (J. B.) Battiscombe Gunn

Inventor of the Gunn diode, the first inexpensive source of microwave power that did not require vacuum tubes, Gunn discovered the Gunn Effect while working at IBM in 1962. Gunn diodes have...

Kay Brossard Magleby

Architect of HP's first minicomputer and leader of the team that led HP into the computer industry, Magleby was born in Rigby, Idaho and raised in Pocatello, where he graduated from Pocatello...

Jeffrey (Jeff) Scott Raikes

Senior executive at Microsoft and CEO of the Bill & Melinda Gates Foundation, Raikes is credited with driving much of Microsoft's early work in business applications. He joined Microsoft in 1981 as...

Alexander Bain

Inventor of the electric clock and pioneer of the telegraph, Bain transformed early communications technology. His first patent was dated January 11, 1841, and was in the names of John Barwise, chronometer...

Sheldon (Shelly) Weinig

Founder of Materials Research Corporation (MRC), a global manufacturer and supplier of highly specialized semiconductor materials and equipment, Weinig set the pace for the semiconductor industry. Born in New York City, he...