Rasmus Lerdorf

Creator of the PHP programming language, Lerdorf also contributed to the Apache HTTP Server and came up with the LIMIT clause, adding it to the mSQL Database in 1995. It is the...

Gary Kildall

Creator of CP/M, the first disk-based OS for microcomputers, Kildall built a precursor to MS-DOS. CP/M became a fertile ground for the development of application software for microcomputers that became precursors to...

Roy Nutt

A major contributor in the creation of IBM's FORTRAN, the first high-level scientific and engineering programming language, Nutt was also an American businessman and computer pioneer who co-founded Computer Sciences Corporation. He...

Daniel (Danny) Mark Lewin

Co-creator of innovative Internet infrastructure services that produced an entirely new industry segment and forever changed the way people and companies distribute content, data, and applications, Lewin co-founded Akamai Technologies. An American-Israeli...

Ivan Edward Sutherland

Pioneer of computer graphics and inventor of Sketchpad, Sutherland received the Turing Award from the Association for Computing Machinery in 1988 for that invention, which became an early predecessor to the sort...

Edward Hance Shortliffe

Pioneer in the use of artificial intelligence in medicine, Shortliffe is best known as the principal developer of the clinical expert system MYCIN, one of the first rule-based artificial intelligence expert systems,...

Makoto Murata

Participant in the W3C XML Working Group that designed XML 1.0, Murata is a Japanese computer scientist who joined the group in 1997. Jon Bosak, James Clark, and Tim Bray were also...

Alan Kotok

Co-developer of what is sometimes called the first video game (Spacewar!), Kotok was also part of the team that wrote the Kotok-McCarthy program which took part in the first chess match between...

Alexey Andreevich Lyapunov

One of the founders of cybernetics and a computer pioneer in Russia, Lyapunov made foundational contributions to the development of computing and cybernetics in the Soviet Union. In 1928, Lyapunov enrolled in Moscow...

Neil Bartlett

Key contributor to IBM's risk analytics business, Bartlett has served as an IBM Fellow, Chief Technology Officer, and Head of Development for the Risk Analytics division of IBM. His innovative work in...

David (Dave) Dana Clark

Chief Protocol Architect in the development of the Internet, Clark is an American computer scientist. He graduated from Swarthmore College, southwest of Philadelphia, in 1966. In 1968, he received his Master's and...

Tom van Vleck

Co-author of the first email program for the Compatible Time-Sharing System (CTSS), one of the first time-sharing operating systems, van Vleck is an American computer software engineer. He worked at MIT on...

Allen Newell

Pioneer in artificial intelligence, Newell made basic contributions to AI and the psychology of human cognition, for which he and Herbert Simon were awarded the ACM's A.M. Turing Award in 1975. He...

Stefan Pappe

Leader of the design for the Common Cloud Management Platform and delivery of IBM cloud solutions to clients, Pappe was named an IBM Fellow in 2011—the highest honor a scientist, engineer, or...

Richard (Rich) Hilleman

Creator of the original Madden Football game for video game consoles, Hilleman is an American computer game and video game producer best known for his work at Electronic Arts. Apart from Madden,...

Oliver Selfridge

An innovator in early computer science and artificial intelligence, Selfridge helped shape the foundations of machine learning and AI. Credited with coining the term "intelligent agents" for software programs capable of observing and...

Brian Warboys

Chief designer of ICL's VME operating system, Warboys went on to become a Professor of Software Engineering at the University of Manchester from 1985 until he retired in September 2007, subsequently being...

Dorcas Muthoni

Founder of OPENWORLD LTD at the age of 24, Muthoni was a Kenyan entrepreneur and computer scientist who established the software consulting company to advance technology's role in African society. Through her...

Heinz Zemanek

Austrian computer pioneer who built the first European all-transistor computer in 1955, Zemanek went on to found the IBM Laboratory Vienna in 1961. The IBM Laboratory Vienna (later known colloquially as the Vienna...

Richard E. Crandall

Developer of the irrational base discrete weighted transform, an important method of finding very large primes, Crandall made significant contributions to computational number theory. He served, at various times, as Chief Scientist...