The first OS installed in a computer. In a virtual machine environment, there may be a host operating system that interacts with the virtual machine monitor, which manages the virtual machines.

As of October 14, 2025, Microsoft’s Windows 10 has reached the end of its usable life, prompting an outpouring of tributes ...

Developers talk a lot about “immutability.” Outside the technical world, it usually means something negative: unmoving, inflexible, and entrenched. However, in the technical field, these features ...

Apple will reportedly change the way it names its operating systems, per a Bloomberg report. Operating systems will now be named by year, meaning the update after the current iOS 18 will be iOS 26 ...