Email inventor Ray Tomlinson dies at 74
Stanford cryptography pioneers Whitfield Diffie and Martin Hellman win ACM 2015 A.M. Turing Award
Discrete Analysis launched, featuring Terence Tao: “The Erdős discrepancy problem”.
MAME is now Free and Open Source Software, “After 19 years, MAME is now available under an OSI-compliant and FSF-approved license!” “As a result, a great majority of files (over 90% including core files) are available under the 3-Clause BSD License but project as a whole is distributed under the terms of the GNU General Public License, version 2 or later (GPL-2.0+), since it contains code made available under multiple GPL-compatible licenses.”
Lessons Learned from 30 Years of MINIX, by Andrew S. Tanenbaum.
KLEE is a symbolic virtual machine built on top of the LLVM compiler infrastructure.
Mathics is a free, general-purpose online computer algebra system featuring Mathematica-compatible syntax and functions. It is backed by highly extensible Python code, relying on SymPy for most mathematical tasks.
555 timer teardown: inside the world’s most popular IC
A Visual Look at 2 Million Chess Games, very nice visualizations.