The Xbox One isn't useful for much, as it's only capable of playing games at resolutions we used to play at back in the 90s, but hey - you can install Windows 95 to your Xbox One now.
YouTuber 'vcfan' had 'Dosbox', a virtual DOS machine app running on his Xbox, where you can run Windows 95 and other software. Not everyone can do this, as you'll need an Xbox One developer unit, but Microsoft is allowing the Universal Windows Platform (UWP) later this year, where more fun might begin.
Wake me up when I can install Windows 10 on an Xbox One, and I be excited - would you want to install a desktop OS with a working mouse and keyboard as a media machine, or something similar?