Glenn Ricart

Leader of the team that wrote the code for the first implementation of TCP/IP for the IBM PC, Ricart is recognized as an Internet pioneer who started using one of the original...

Eugene (Gene) L. Delves

Co-founder of the organization known today as Accenture, Delves was one of five men whose 1954 efforts marked the first successful installation and use of a computer in the industry. In 1954,...

Arthur Scherbius

Inventor of the cryptographic machine Enigma, Scherbius founded the company to manufacture it and transformed the history of wartime communications. He was born in Frankfurt am Main and studied electricity at the...

John W. Haanstra

Instrumental in the launch of the IBM System/360, Haanstra served as Chairman of the influential SPREAD Task Group (Systems Programming, Research, Engineering and Development) and President of the IBM General Products Division...

Radhia Cousot

Co-inventor of Abstract Interpretation, Cousot was a French computer scientist who, together with her husband Patrick, developed an influential technique in formal methods based on three main ideas. 1) Any reasoning/proof/static analysis...

Shigeru (Steve) Nakayama

Key player in introducing U.S. semiconductor equipment technology to Japan, Nakayama has made lasting contributions to the international semiconductor industry. Born in Chicago, he grew up in Palo Alto, CA, where he attended...

Hans-Joachim Queisser

Inventor of a high-power luminescent diode — an infrared light emitting diode (LED) that now forms the basis of almost every household remote control device — Queisser was a solid-state physicist also...

John Bardeen

Co-inventor of the transistor and the only person to have won the Nobel Prize in Physics twice, Bardeen was an American physicist and electrical engineer. He received the prize first in 1956...

Thomas Parke Hughes

Co-founder of the Society for the History of Technology, Hughes was an American historian of technology and an emeritus Professor of History at the University of Pennsylvania, as well as a visiting...

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...

Patrick Joseph McGovern

Founder of Computerworld and the International Data Group (IDG), McGovern built one of the world's largest technology media companies, with subsidiaries in technology publishing, research, event management, and venture capital. McGovern was born...

Calvin Northrup Mooers

Known for his work in information retrieval and for the programming language TRAC, Mooers was a native of Minneapolis, Minnesota. He attended the University of Minnesota and received a bachelor's degree in...

Frances (Betty) Elizabeth Holberton

One of the six original programmers of ENIAC, the first general-purpose electronic digital computer, Holberton made foundational contributions to the history of computing. During World War II, while the men were fighting,...

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...

James (Jim) Rymarczyk

Key role player in advancing virtualization technology at IBM, Rymarczyk spent over 43 years with the company, from May 1968 to January 2012, retiring as an IBM Fellow in 1996. He joined...

Shuman Ghosemajumder

Creator of the first real-time collaborative graphic design application, Ghosemajumder is a Canadian technologist, entrepreneur, and author. He was born in Stuttgart, Germany and grew up in London, Ontario, Canada. In 1996 he...

Frederick Jelinek

Pioneer of speech recognition, Jelinek was a Czech-American researcher in information theory, automatic speech recognition, and natural language processing, well known for his oft-quoted statement, "Every time I fire a linguist, the...

Elwyn Ralph Berlekamp

Known for his work in information theory and combinatorial game theory, Berlekamp was one of the inventors of the Welch–Berlekamp and Berlekamp–Massey algorithms, which are used to implement Reed–Solomon error correction. While an...

Satish Chandra

Co-developer of a methodology that allows programmers to leverage the oracle's help in writing complex programs, Chandra has worked extensively on program analysis, bug finding, and software verification. He obtained a PhD from...

Seymour Roger Cray

Sometimes called "the father of supercomputing," Cray was a U.S. electrical engineer and supercomputer architect who designed a series of computers that were the fastest in the world for decades, and founded...