Microsoft open-sources “the earliest DOS source code discovered to date”

For students of early PC history, this isn’t even the first piece of 86-DOS history that has been newly rediscovered this ...
Tom's Hardware on MSN

45 years later, earliest DOS source code transcribed from a stack of old printouts found in garage

Microsoft VP confirms transcribed document “is perfect and recompiles byte for byte to the original binaries.” ...
How-To Geek on MSN

5 open-source operating systems everyone mistakes for Linux

FreeBSD, Haiku, and other systems everyone mistakes for Linux are actually their own OS outside of the system that you are ...

My 5 favorite open source operating systems that aren't Linux

Looking for non-Linux open-source options? From ghosts of past operating systems to fascinating works in progress, here are ...