Donald (Don) M. Eigler

The first researcher to use a scanning tunneling microscope tip to arrange individual atoms on a surface, Eigler is noted for his achievements in nanotechnology. In September 1989, he famously spelled out...

Wei Yen

Major contributor to the Cydra-5 mini-supercomputer, Yen is a software developer and entrepreneur who has been involved with several companies, including as chairman and founder of AiLive. He and his brother David...

Tim Roughgarden

Noted for his work in network data loss, Roughgarden introduced novel techniques that quantified the lost efficiency associated with the uncoordinated behavior of network users who acted in their own self-interest, building...

Clifford Alan Pickover

Member of the team that worked on design-automation workstations and developed code for IBM's IntelliStation, Pickover is an American author, editor, inventor, and columnist in the fields of science, mathematics, and science...

Edward Albert Feigenbaum

Known as the "father of expert systems," Feigenbaum is a computer scientist working in the field of artificial intelligence. Feigenbaum completed his undergraduate degree, and a Ph.D., at Carnegie Institute of Technology (now...

Robert (Bob) E. Lorenzini

Co-designer and developer of a crystal growing furnace, Lorenzini joined Rheem Semiconductor in 1960, the first spin-off from Fairchild Semiconductor, where he was involved in the design and development of that furnace....

Douglas Donald Troxel

Developer of COMPAREX, an industry-standard mainframe product, Troxel founded SERENA Consulting in 1980 and grew it into a publicly traded software company without venture capital. Raised on a farm near Lake City, Iowa,...

Charles Sanders Peirce

As early as 1886, Peirce saw that logical operations could be carried out by electrical switching circuits, the same idea that was used decades later to produce digital computers. An American philosopher,...

John T. Chambers

CEO of Cisco, Chambers joined the company in 1991 as senior vice president, Worldwide Sales and Operations. When he assumed the role of CEO in January 1995, the company grew from $1.2...

Roger Sippl

Co-developer of the relational database Informix (INFORMation on unIX) and co-founder of Relational Database Systems (RDS), Sippl earned a B.S. in computer science from the University of California at Berkeley. He and...

Helmut Theodor Schreyer

Co-developer of the Z3, one of the first computers, Schreyer also developed an electrical circuit to convert decimal to binary numbers. He was a German inventor and the son of the minister...

Wietse Zweitze Venema

Writer of the Postfix email system and TCP Wrapper, Venema is a Dutch programmer and physicist recognized as an authority on Internet security. Postfix is a free and open-source mail transfer agent...

Katherine (Kathy) Anne Yelick

Co-inventor of Unified Parallel C (UPC), a programming language extension designed for high-performance computing on large-scale parallel machines, Yelick is an internationally recognized expert in high performance computing. Yelick has served as a...

Amar Mukherjee

Pioneer in Switching Theory and the first to develop an algorithm for the minimization of EXOR-AND-type logic networks, Mukherjee was internationally recognized for his contributions to Hardware Algorithms for Non-numeric Computation, VLSI...

Marlyn Meltzer (née Wescoff)

One of the original programmers of the ENIAC, the world's first electronic computer, Meltzer was selected for this role in 1945. A graduate of Temple University in 1942, she was hired by...

Krishnendu (Krish) Chakrabarty

Pioneer researcher on the design automation and testing of complex chips with application to microfluidic biochips, Chakrabarty has served as a Professor of Electrical and Computer Engineering at Duke University in Durham,...

Evelyn Boyd Granville

Part of the IBM team responsible for formulating orbit computations and computer procedures for NASA's Projects Vanguard and Mercury, Granville was also one of the first African-American women to receive a Ph.D....

Jim Knopf (aka Button)

Considered by many to be one of the "fathers" of shareware (so named by fellow software veteran Peter Norton), Knopf worked as an IBM software engineer in Seattle, Washington, where he wrote...

Judea Pearl

A pioneer of the probabilistic approach to artificial intelligence and the development of Bayesian networks, Pearl is an Israeli American computer scientist and philosopher. His work demonstrated empirical success in numerous applications...

Richard Lawrence Grimsdale

Designer and developer of the world's first transistorized computer, the Metrovick 950, Grimsdale was born in Australia, returned to England with his parents, and later studied electrical engineering at Manchester University, graduating...