After a slight delay, watchOS 2 is now available for Apple Watch owners. The new update will bring a few new features and improvements to the wearable OS.
Check out Trivia Tuesday's awesome infographic pedigree of Microsoft operating systems, from MS-DOS and OS/2 all the way up to Windows 8, and everything in between. Yes, even Zune.
25 years ago today, IBM and Microsoft announced OS/2, the PC operating system that was designed to replace DOS but failed to do so, thanks mostly to Microsoft's efforts to improve Windows.