Konrad Zuse

German engineer who, completely independently of British and American computing efforts, built the Z3 (1941), the first working program-controlled general-purpose digital computer. The Z3, destroyed in the bombing of Berlin, never got...

Willis H. Ware

Designer of the IAS and Johnniac computers, Ware was a senior computer scientist emeritus with the RAND Corporation (1952–present) in Santa Monica, California, with which he held various staff and management positions....

Donald Ervin Knuth

Author of the landmark series *The Art of Computer Programming*, Knuth is renowned for his contributions to the analysis of algorithms and the design of programming languages. He has served as Professor...

John Adrian Shepherd-Barron

Pioneer in the development of the cash machine (ATM), Shepherd-Barron joined De La Rue Instruments in the 1960s and in 1965 came up with the concept of a self-service machine that would...

Philippe Kahn

Creator of the first camera phone and founder of Borland Software and other technology companies, Kahn has built an extraordinary entrepreneurial legacy. He founded four successful companies: Fullpower Technologies, Starfish Software, Lightsurf...

Barbara Liskov

A pioneer in object-oriented programming, Liskov's work in programming methodology has affected all aspects of modern computing, including programming languages, object-oriented programming, and software robustness to hacking. She designed CLU, an object-oriented...

Alexander Ivanovich Mikhailov

Co-founder of the Vserosiisky Institut Nauchnoi I Tekhnicheskoy Informatsii (VINITI) and co-author of the concept of Informatics, Mikhailov was a pioneering figure in the study and dissemination of scientific information. He graduated...

George Glaser

President of AFIPS and active leader across many professional organizations, Glaser was noted for his service to the information technology profession as a whole, through his leadership, enthusiastic support, and tireless work...

Alexander L'vovich Brudno

Best known for fully describing the alpha-beta (α-β) search algorithm, Brudno was a Russian Jewish computer scientist who lived in Israel from 1991. He developed the "mathematics/machine interface" for the M-2 computer...

David G. Arscott

Founder board member of the IT History Society and Silicon Valley venture capitalist, Arscott spent his entire professional career investing in private and public technology companies. In 1968, he joined the group...

Carl Sassenrath

Creator of the Amiga Computer operating system kernel, which brought multitasking to personal computers, Sassenrath is also the designer of the REBOL computer language. Born in Eureka, California, he has served as...

Danese Cooper

Known as the "Open Source Diva" for her work in the Open Source movement, Cooper has held many prominent leadership roles within the computer science sector. Cooper managed teams at Symantec and...

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...

Richard (Dick) Chao-Fan Chu

A prolific technical innovator in cooling technology, Chu's patents and publications were recognized outside of IBM as industry standards for the cooling of electronic equipment. Born in Beijing, China, he was the son...

W. Bruce Croft

A leading contributor to research in information retrieval and the theoretical development and practical use of Bayesian inference networks and language modelling for retrieval, Croft has served as a distinguished Professor in...

Murray Campbell

Member of the teams that developed chess machines HiTech and Deep Blue, Campbell is a Canadian computer scientist who has served as a Senior Manager in the Business Analytics and Mathematical Sciences...

Yngvar Lundh

Developer of a new form of distributed, digital PBXs called hub technology, Lundh was a Norwegian engineer and scientist also known for bringing the Internet to Norway and developing some of the...

Jim Tice Ellis

Co-creator of Usenet, Ellis changed how people communicate online. It was 1979 when Ellis and a fellow Duke University student, Tom Truscott, decided to use e-mail programs and university computers to establish...

Charles Ranlett Flint

Founder of the Computing-Tabulating-Recording Company (CTR), which later became IBM, Flint transformed the landscape of business computing. In 1868, Charles Flint graduated from the Polytechnic Institute in Brooklyn, and in 1871 entered the...

Lars Wirzenius

Co-founder of the Linux Documentation Project, Wirzenius has been programming computers since 1984. He worked on Linux documentation, including the Linux System Administrator's Guide, and was the co-moderator of the comp.os.linux.announce newsgroup....