Microsoft finally open sources DOS 1.0 - and it's so much more than the code

Microsoft finally open sources DOS 1.0 - and it's so much more than the code ...
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.” ...
CNET

Ubuntu Jaunty Jackalope released into the wild

Version 9.04 of the Ubuntu Linux distribution was made available for download on Thursday. The latest iteration of the operating system, code-named Jaunty Jackalope, comes in three versions: desktop, ...
ZDNet

What are open-source operating systems? Everything you need to know

What are open-source operating systems? Underpinning an operating system, for example Windows on your PC or Android on your phone, is many, many lines of code. Allowing anyone to inspect the source ...