Ok, I'm having another conversation with my professor about whether or not DOS is really an OS (Which, if it isn't would mean that everything through Win95 is not an OS). I have posted links stating ...

PC-DOS 1.00 would lead to Microsoft becoming computing's top dog Microsoft continues to embrace open source. The source code and annotations provide insight into the operating system's earliest days.

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 ...