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...

William (Bill) James Dally

Co-builder of the J-Machine and the M-Machine — parallel machines emphasizing low overhead synchronization and communication — Dally has served as Chief Scientist and Senior Vice President of Research at NVIDIA, an...

Charles Ingerham Peddle

Main designer of the MOS Technology 6502 microprocessor, the KIM-1 SBC, and the Commodore PET personal computer, Peddle was an American electrical engineer. Born in Bangor, Maine, he worked in a radio...

Peter Kogge

Designer of the Space Shuttle I/O processor — one of the first multithreaded computers and the first to fly in space — Kogge is a computer engineer and 1993 IBM Fellow who...

Wen Tsing Chow

Inventor and fundamental patent holder of programmable read-only memory (PROM), Chow was a Chinese-born American missile guidance scientist and digital computer pioneer. He was born in Taiyuan, Shanxi Province, China, near the...

Arnold T. Nordsieck

Builder of the "differential analyzer"—an analog computer capable of solving complex equations and drawing curves—Nordsieck constructed the device in the 1950s out of $700-worth of war surplus materials. Clones subsequently became the...

Lubomyr T. Romankiw

Co-inventor of a technique that produced the first practical and manufacturable thin film magnetic head, Romankiw helped increase the density of data stored on magnetic disks and dramatically reduced the cost of...

Steven W. Hunter

Systems Architect for Systems x and BladeCenter products at IBM, Hunter was named an IBM Fellow in 2011—the highest honor a scientist, engineer, or programmer at IBM can achieve. He has served...

Pierre Jaquet-Droz

Creator of animated dolls, or automata, devices which some consider to be the oldest examples of the computer, Jaquet-Droz lived in Paris, London, and Geneva, where he designed and built these mechanisms...

John (Jack) Mason Harker

Pioneer of the IBM 350 RAMAC disk storage unit — the world's first hard disk drive — Harker started as a member of the original team that developed the first disk storage...

David (Kitping) K. Lam

Co-inventor of a plasma-produced solid lubricant patented under the title "Fluorine Plasma Synthesis for Carbon Monofluoride," Lam is also the founder of Lam Research Corporation. He has served as Chairman of Multibeam...

Daniel Paul Siewiorek

Designer or co-designer of nine multiprocessor systems and a key contributor to the dependability design of over two dozen commercial computing systems, Siewiorek has served as the Buhl University Professor of Electrical...

Bob (Boe) Overton Evans

At IBM, Evans led the groundbreaking development of compatible computers that changed the industry. He persuaded IBM's chairman, Thomas J. Watson Jr., to discontinue the company's development of a hodgepodge of incompatible...

John Aris

Part of the original team that built the LEO computer, Aris later served as Director of the National Computing Centre (NCC) 1985–90, where he championed the importance and the skills of computer...

Henry Edward Roberts

Designer of the first commercially successful personal computer, Roberts transformed computing in 1975. He founded Micro Instrumentation and Telemetry Systems (MITS) in 1970 to sell electronics kits to model rocketry hobbyists, but...

Stanley Mazor

Co-designer of the world's first microprocessor, the Intel 4004, Mazor also co-patented "Symbol," a high-level language computer. Born in Chicago, Illinois, as a youth his family moved to California, where he attended...

Eiichi Goto

Inventor of the parametron computer, Goto made foundational contributions to early computing in Japan. In 1954, when he was a graduate student of Professor Takahasi's Laboratory, Goto invented a majority logic element, the...

Paul Coteus

One of the chief engineers behind BlueGene/L, which rocked the world of supercomputing when it was introduced in 2004 and quickly earned the title "fastest computer in the world," Coteus led the...

Paul Castrucci

Leader of the team that invented and developed a major paradigm shift in computer storage, Castrucci's work set the stage for current computer memory technology. Born in St. Johnsville, New York on the...

Karl Ferdinand Braun

Inventor of the cathode-ray tube, Braun built the first such device in 1897 — known as the "Braun Tube" in German-speaking countries. During the development of radio, he also worked on wireless...