Programming since 1966. Some computers and systems used: IBM 1620, 7094, 360, 370, PDP 8, 10, 11, Prime, Motorola 6811, Nvidia/CUDA, Intel Xeon, IBM Quantum Computers. Some of the languages used: IBM Assembly, Fortran II, IV, DEC Macro 10, Lisp, Prolog, Snobol, C, Matlab, Mathematica, qiskit. Favorite language: C++. Least unfavorite OS: Linux.