Family Ties

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Completing the Work

Henry Prevost Babbage, Charles Babbage’s youngest surviving son, published his father’s scattered papers as Babbage’s Calculating Engines (1889) and had a demonstration piece of the Analytical Engine’s mill built from the original drawings; in 1910 it computed and printed multiples of pi, the closest the Engine ever came to running. → Charles Babbage: The Visionary Architect

Horst Zuse, Konrad Zuse’s eldest son and a computer scientist at TU Berlin, became the historian of his father’s machines and built a working Z3 replica for the Zuse centenary in 2010; it stands in the Konrad-Zuse-Museum in Hünfeld. → Konrad Zuse and the Z3

Re-betting the Company

Thomas Watson Jr. took over IBM from his father in 1956 and bet twice the company’s annual revenue ($5 billion) on the System/360, the largest bet-the-company decision in the industry’s history. It won him the mainframe age. His memoir is titled Father, Son & Co. → IBM: The Company

Adriano Olivetti inherited his father Camillo’s typewriter factory and re-bet it on electronics: the transistorized Elea 9003 mainframe (1959) made Italy briefly competitive with IBM. His death in 1960 unmade the bet; the division was sold to General Electric in 1964. → Camillo and Adriano Olivetti

Gene and Carl Amdahl founded Trilogy Systems together in 1980 (with Clifford Madden), raising $230 million for wafer-scale integration. The technology was not manufacturable, and Trilogy became one of the era’s largest venture-funded failures. → Gene Amdahl and the System/360

Failed Succession

Fred Wang was installed as president of Wang Laboratories by his father An Wang in 1986, over the visible dismay of the professional executives. Losses mounted; in 1989 the dying founder personally fired his son, and the company was bankrupt within three years. → Dead End: Wang Labs

Sam and Leonard Tramiel ran Atari for their father Jack after he bought the company in 1984, Sam as president, Leonard over software. The ST line had its decade, but the company lost the platform wars and was sold in 1996. → Jack Tramiel and Commodore

The Paradigm Flip

Jakob Uszkoreit co-authored “Attention Is All You Need” (2017), the Transformer paper that made obsolete much of the rule-based language technology his father Hans Uszkoreit had spent four decades building; the skeptics of self-attention included his own father. Grandfather Hans-Georg was a GDR culture functionary the family fled; three generations, three worldviews. → Hans Uszkoreit and German Language Technology

William Newman, son of Max Newman, who drove the mechanization of the Lorenz attack at Bletchley Park, flipped from his father’s cipher-breaking mathematics to interactive computer graphics: he co-wrote the standard textbook (Principles of Interactive Computer Graphics, 1973) and worked at Xerox PARC. → Tommy Flowers and Colossus

Parents and Children

Conway Berners-Lee and Mary Lee Woods both programmed the Ferranti Mark 1, the first commercially sold computer. Their son Tim grew up at a dinner table where computing was the natural conversation, and invented the World Wide Web. → Tim Berners-Lee and the World Wide Web

Annabella Milbanke prescribed rigorous mathematics for her daughter Ada as an antidote to the “Byron madness” of her runaway poet father. The therapy produced the first published computer algorithm. → Ada Lovelace and the Analytical Engine

Oliver Strachey broke ciphers in both world wars (the Abwehr decrypts at Bletchley Park circulated as ISOS, “Illicit Services, Oliver Strachey”); his son Christopher wrote the first computer-generated literature and co-founded denotational semantics. → Christopher Strachey

Alistair Ritchie was a Bell Labs switching engineer and co-author of The Design of Switching Circuits (1951); his son Dennis MacAlistair Ritchie joined the same institution and wrote C there. → Dennis Ritchie and the C Language

The Inverted Case: Son Builds for Father

Blaise Pascal, nineteen years old, built the Pascaline (1642), the first calculating machine with automatic carry, to ease the arithmetic of his tax-official father. The most famous early computing device was a gift up the generational ladder, not down. → Before the Computer: Mechanical Calculation

Dynasties

From Boole to Hinton: George Boole, whose 1847 algebra of logic underlies all digital computation, is the great-great-grandfather of Geoffrey Hinton, whose backpropagation work underlies deep learning. One family brackets the field. → Geoffrey Hinton and Deep Learning, George Boole and Boolean Logic

The Ferrantis: Sebastian Ziani de Ferranti founded the family electrical firm in 1882; under his son Sir Vincent it built the Ferranti Mark 1, the first commercially sold computer, and a third generation ran the company into the 1980s. → The Manchester Baby

Couples and Whole Families

The Blums at Carnegie Mellon: Manuel Blum (Turing Award 1995), his wife Lenore, and their son Avrim served simultaneously on one top computer science faculty, likely the only nuclear family ever to do so. → Manuel Blum: From Complexity to CAPTCHA

Ken and Roberta Williams built Sierra On-Line from their kitchen table: she designed the games that invented the graphic adventure genre, he programmed and ran the company. Married in 1972, still shipping games together in 2023. → Ken and Roberta Williams

Hans Uszkoreit and Feiyu Xu met in Saarbrücken as professor and student, became research partners and spouses, and later built AI labs in Beijing side by side, she at Lenovo, he as founder. → Hans Uszkoreit and German Language Technology

Siblings

Esther and George Dyson, children of the physicist Freeman Dyson, split computing between them: Esther chaired ICANN at its founding and became a leading technology investor; George wrote Turing’s Cathedral, the standard history of von Neumann’s IAS machine. → The Domain Name System, Von Neumann Architecture