Logo is a programming language (logo history, a dialect of LISP) which can be found on Amstrad CPC 664 and 6128 on its CP/M disks. His creator the professor Emeritus Seymour Papert dies at 88 (other authors of logo : Daniel G. Bobrow, Wally Feurzeig and Cynthia Solomon).

Another article on Seymour Papert.

By the way, the LEGO company named its Mindstorms robotics kits in recognition of Seymour Papert's seminal book : Mindstorms: Children, Computers, and Powerful Ideas (ISBN 978-0465046744).