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 ...

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 ...
Hackaday

An Entire RISC-V Operating System In 2000 Lines

While Microsoft and Apple don’t release the source code for their operating systems, a good estimate is that it takes around 50 million lines of code to run these software behemoths. The Linux kernel ...
Tidbits

Emulation, Virtualization, and Rosetta 2: A Blend of Old, New, and Yet To Come

Over the decades, Apple has managed several successful processor and operating system migrations with a combination of emulation and virtualization. Emulation lets a computer run code intended for a ...
TechNewsWorld

UPDATE: Longhorn Exposed at Windows Developer Conference

Hoping to steer its next-generation Windows operating system — code-named Longhorn — into the developer community, Microsoft has released previews of the software. The actual Longhorn operating system ...