Microsoft open-sources 86-DOS 1.00, the ancestor of Windows

The source code for 86-DOS 1.00, the OS that eventually became MS-DOS and Windows, is now available on GitHub.

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

Want a blast from the past? Microsoft just open-sourced its very first operating system, offering a rare insight into the ...
Hosted on MSN

I've been covering Microsoft, DOS, and Windows since the 1980s, and Microsoft turning 50 is more important than you think

It was 1989, and I was obsessed with the Mac. Apple's portable, 9-inch-screen computer was an exciting graphical leap, and I wanted to use it for everything. But I wasn't using it. Instead, I, like ...
Ars Technica

Microsoft turns 50 today, and it made me think about MS-DOS 5.0

On this day in 1975, Bill Gates and Paul Allen founded a company called Micro-Soft in Albuquerque, New Mexico. The two men had worked together before, as members of the Lakeside Programming group in ...
Ars Technica

Remembering MS-DOS 5.0, my first Microsoft product, on the company’s 50th birthday

When I built my first PC in the summer of 1991, it was a 286-12MHz machine w/1Meg of DIP RAM, EGA and a 40M IDE HDD. This had one of those chipsets that could to UMBs and EMM on 286 CPUs. Later ...
TechSpot

The Windows 95 setup was text-based for a good reason, Microsoft employee reveals

In a nutshell: When trying to install Windows 95 for the first time, PC users were presented with a dull text interface and no graphics. DOS could indeed "do graphics," but the Windows team decided to ...
PC World

Microsoft Windows hits 40 years old: A visual walk down memory lane

On November 20th, 1985, a then not-so-big company called Microsoft announced that Windows was commercially available. Read the full story of the Microsoft operating system below. Windows 1 to 11: The ...