New article: obituary of Niklaus Wirth






Bertrand Meyer: Obituary for Niklaus Wirth, in Formal Aspects of Computing, volume 37, issue 2, pages 1-11, published 3 March 2025, available here (publisher’s site). Shortly after Niklaus Wirth — Turing Award winner for his many seminal contributions including Pascal, Algol W, Modula, virtual machines, Lilith/Ceres, railway diagrams, PL/360, seminal textbooks…  — passed away last … Read more




A remarkable group photo






On 13-15 September 1999 a symposium took place in St Catherine College in Oxford,  in honor of Tony Hoare’s “retirement” from Oxford (the word is in quotes because he has had several further productive careers since). The organizers were Jim Woodcock, Bill Roscoe and Jim Davies. The proceedings are available as Millenial Perspectives in Computer … Read more




Niklaus Wirth and the Importance of Being Simple






[This is a verbatim copy of a post in the Communications of the ACM blog, 9 January 2024.] I am still in shock from the unexpected death of Niklaus Wirth eight days ago. If you allow a personal note (not the last one in this article): January 11, two days from now, was inscribed in … Read more




Some contributions






Science progresses through people taking advantage of others’ insights and inventions. One of the conditions that makes the game possible is that you acknowledge what you take. For the originator, it is rewarding to see one’s ideas reused, but frustrating when that happens without acknowledgment, especially when you are yourself punctilious about citing your own … Read more




Ten traits of exceptional innovators






Imagine having had coffee, over the years, with each of Euclid, Galileo, Descartes, Marie Curie, Newton, Einstein, Lise Leitner, Planck and de Broglie. For a computer scientist, if we set aside the founding generation (the Turings and von Neumanns), the equivalent is possible. I have had the privilege of meeting and in some cases closely … Read more




Handshake with a clown






In the circus business, the Zavatta family is a legend. From father to son and grandson, a Zavatta has for decades been the foremost clown of his generation, first in Italy, then in French North Africa, then in France proper. None was ever more famous than Achille Zavatta, who carried the family name through the … Read more