Various versions of Microsoft's Windows operating system have existed since the 1980s. While the operating system got its start on personal computers, today, versions of Windows are available for a ...

The computer's master control program. When a computer is turned on, a small "boot program" loads the operating system. Although additional system modules may be loaded as needed, the main part, known ...

If you have a Mac capable of running Classic (i.e., not an Intel-based Mac) but either reformatted the drive and installed only Mac OS X, or acquired the machine with only Mac OS X installed, you may ...

Qubes OS is a free open-source operating system that’s fully security-oriented. It leverages Xen-based virtualization, which allows the user to create, use and delete easily isolated compartments ...

I remember back in the day when Linux was a challenge, even for computer scientists. It was all text-based; you had to manually format the hard drive, understand how networking functioned, and use the ...

Ahh, Windows 8. If you’ve decided you’re ready to plunk down your hard-earned cash to give this modern UI a shot, you’ll want to spend a few minutes considering just how you take your first steps into ...

There are a few reasons why you might want to install an old version of macOS or Mac OS X. Perhaps you are relying on software you have discovered doesn’t work properly with the newest version of ...