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...

Jay Wright Forrester

Founder of System Dynamics, Forrester was also a pioneer computer engineer and systems scientist whose invention of magnetic core memory transformed computing. Forrester was born on July 14, 1918, on a cattle ranch...

Dean Everett Wooldridge

Co-founder of the Ramo-Wooldridge Corporation, which was awarded the prime contract for overall systems engineering and technical direction of the nation's Intercontinental Ballistic Missile (ICBM) Program, Wooldridge was a prominent engineer in...

László Kalmár

Pioneer in mathematical logic and theoretical computer science, Kalmár defined what are known as elementary functions, number-theoretic functions (i.e. those based on the natural numbers) built up from the notions of composition...

Philibert Maurice d'Ocagne

Pioneer of nomography — the systematization of graphical calculation methods using nomograms — d'Ocagne was a French engineer and mathematician whose scientific personality soon fell into oblivion, leaving only a few milestones...

Anders Hejlsberg

Co-designer of Turbo Pascal, Delphi, and C#, Hejlsberg is a Danish software engineer who has shaped several of the most widely used programming languages and development tools in the history of commercial...

Anthony James Barr

In 1962-63, Tony Barr, as a physics graduate student, wrote a general analysis of variance program and a multiple regression program to run on the IBM1410 computer. These programs were used...

Phaedon Avouris

Innovator of the potential for carbon nanotubes to compete with the long-established silicon transistor for important information technology applications, Avouris is a Greek chemical physicist who has served as an IBM Fellow...

William Gordon Welchman

One of four signatories to an influential letter delivered personally to Winston Churchill in October 1941 asking for more resources for the code-breaking work at Bletchley Park, and teacher of the first...

Alston Scott Householder

Instrumental in introducing the ORACLE computer to Oak Ridge National Laboratory, Householder was also an American mathematician who specialized in mathematical biology and numerical analysis, and was the inventor of the Householder...

Luba Cherbakov

Co-inventor and chief evangelist behind Service-Oriented Modeling and Architecture (SOMA), the industry's first SOA modeling method, Cherbakov is also a 2012 IBM Fellow — the 13th woman (and among only seventeen women)...

Bettina Speckmann

Speckmann headed the Applied Geometric Algorithms group at Eindhoven University of Technology and was a professor in the Department of Mathematics and Computer Science in Eindhoven, Netherlands. Her research focused on computational...

Simon Phipps

Instrumental in IBM's involvement in the Java programming language, Phipps founded IBM's Java Technology Center. A computer scientist and web and open source advocate, he left IBM for Sun Microsystems in 2000,...

Bjarne Stroustrup

Designer and implementer of the C++ programming language, Stroustrup is a computer scientist most notable for the creation and development of the widely used C++. He has served as Professor and holder...

Dakshi Agrawal

Elected IEEE Fellow for contributions to theory, analysis, and design of efficient, secure, and privacy-preserving communication systems, Agrawal has made significant contributions to IBM's intellectual property portfolio as a designated Master Inventor. Agrawal...

Donald Becker

Co-creator of the Beowulf clustering software, Becker is known throughout the international community of operating system developers for his contributions to networking software. The Beowulf clustering software connected many inexpensive PCs to...

Mark Pincus

Co-founder of Zynga, which makes online social games, Pincus also founded Freeloader, Inc., Tribe Networks, and SupportSoft. He has served as CEO of Zynga, which had 235 million monthly active users as...

Jimmy Donal Wales

Co-founder of Wikipedia, Wales is an American Internet entrepreneur who has helped transform how the world accesses information. Wales was born on August 7, 1966, in Huntsville, Alabama. He grew up in a...

Klára (Klari) Dán Von Neumann

Writer of the code used on the MANIAC machine developed by John Von Neumann and Julian Bigelow at the Los Alamos Scientific Laboratory, Klára Dán Von Neumann was also a pioneer computer...

Cordell Green

Founder of the Kestrel Institute and known for his research in knowledge-based software engineering, Green has served as Director and Chief Scientist of Kestrel Institute, which he founded in 1981. He was...