Paul Courbis


Paul Courbis de Bridiers de Villemor, aka Paul Courbis, is a French programmer, mostly known for reverse engineering the HP-28 and then the HP 48 series of calculators, and writing multiple articles and books disclosing his findings. These books had a surprising success in France.
Very soon, a team of enthusiasts formed, gathering around Maubert Electronic, a small electronics shop in Paris' Latin Quarter, and developing a large number of utilities and games. Most of these programs are still available and can be traced back to the original reverse-engineering published by Paul Courbis.
Paul Courbis was the chief information officer at the French Ordre National des Médecins, he is also working during his spare time on a set of tools to help people administrating Alcatel's PABX. He also publishes various tricks on his web site.

Other works

Published works

  • A HP 48 running on Unix/X11 and used for automatizing the understanding of the 48G internals;
  • Courbis is also the conceptor of the website of the first French computer bookstore on the Internet:
  • a set of tools to help people administrating an Alcatel 4400 PABX
  • The for the
  • Some modules for sybtcl: and

    Unpublished works

  • An expandable RPL interpreter written in object-oriented C.