Estil Hoversten

Co-conceiver of the Internet Stream Protocol (ST), a connection-oriented complement to IPv4 notable for introducing the concepts of packetized voice, Hoversten has served as Senior Vice President of Hughes Network Systems, LLC...

Bill Atkinson

Creator of HyperCard and co-founder of General Magic, Atkinson was also part of the Apple Macintosh development team and creator of the ground-breaking MacPaint application, among others. He also designed and implemented...

Johannes Georg Bednorz

Co-discoverer, with K. Alex Müller, of high-temperature superconductivity in ceramics, Bednorz shared the 1987 Nobel Prize in Physics for this breakthrough. He was born in Neuenkirchen, North Rhine-Westphalia, Germany to elementary-school teacher...

Jack B. Dennis

A pioneer of time-sharing and hacker culture, Dennis is a computer scientist whose research group owned the PDP-1 at MIT — the machine that later became famous in computer science history as...

Doris L. Carver

Researcher of system reengineering, software requirements methodologies, and formal model transformations, Carver directed the Software Engineering Laboratory at LSU, where she published over 80 technical papers and received funding from NSF, NASA,...

Bernard Galler

American mathematician and computer scientist at the University of Michigan, Galler was involved in the development of large-scale operating systems and computer languages, including the MAD programming language and the Michigan Terminal...

Lotfi Askar Zadeh

Best known for his theory of fuzzy logic, Zadeh proposed using a membership function (with a range covering the interval [0,1]) operating on the domain of all possible values. He proposed new...

Curt L. Cotner

Designer and developer of many key features of DB2 for z/OS, Cotner has served as an IBM Fellow and VP/CTO for IBM Data Management. In that role, he held technical and management...

Sam Ruby

Co-developer and principal maintainer of the Feed Validator — a tool used to check the validity of HTML, CSS, XML documents, and RSS feeds — Ruby has made significant contributions to web...

Andrew Stuart Tanenbaum

Author of MINIX, a clone of UNIX for the IBM PC, Tanenbaum wrote the operating system in 1987 to help students and others learn how an operating system worked. In the early 1990s,...

Claude Elwood Shannon

Developer of Information Theory, the basis for the design of communication systems and networks, Shannon also noted the importance of Boolean theory for the design of logic circuits whilst still a student...

Craig W. Reynolds

Creator of the Boids artificial life simulation (1986), Reynolds is an artificial life and computer graphics expert. Reynolds worked on the film Tron (1982) as a scene programmer, and on Batman Returns...

Herbert Reuben John Grosch

Formulator of Grosch's Law, the landmark aphorism about computer economy and speed, Grosch was one of the earliest and most colorful figures in computer science. Born in Canada, he moved to the United...

John Cullinane

Founder of Cullinet, one of the first software companies to go public, Cullinane is recognized as the creator of the packaged software market. His company claimed many industry firsts: first packaged application, first...

Richard Matthew Stallman

Founder of the GNU Project to create a free Unix-like operating system, Stallman also launched the free software movement and was the main author of the GNU General Public License for open...

Albert S. Hoagland

Early designer of random access disk storage, Hoagland played a key role in magnetic head design and recording for the Random Access Method of Accounting and Control (RAMAC) disk drive, the first...

Gordon Matthews

Founder of ECS Communications (later VMX), one of the first companies to pioneer the commercialization of voicemail for corporate use, Matthews was an American inventor and businessman. He also invented systems to...

David M. Young

Founder of the Center for Numerical Analysis at The University of Texas at Austin, Young was also known for establishing the Successive Overrelaxation (SOR) method. Professor Young's career and many contributions almost exactly...

Robert Elliott Kahn

Co-inventor of the Transmission Control Protocol (TCP) and the Internet Protocol (IP), Kahn is sometimes called one of the fathers of the Internet. Kahn was born on December 23, 1938, in Brooklyn, New...

John Norris Maguire

Founder of Software AG of North America, Inc. and overseas distributor of the Adabas system — a commercial relational database management system (DBMS) first developed for IBM 360 computers — Maguire built...