[consto]

> Nowadays it's almost impossible to uninstall an app completely, because most of them creating files willy nilly. And it's same on all known OSes. The side effect we see is system size growing in time.

Unless I am mistaken, I don't think this is the case for iOS, Android, ChromeOS, FirefoxOS, and many game consoles.

This is really just a problem with desktop and server operating systems, not with operating systems as a whole. It's also getting bettwe with package managers, the Windows Store, and UAC.

[finchisko]

Yes, I forgot to mention mobile OSes. Specially iOS, doesn't keep any app files on disk when app is uninstalled. Android apps tend to keep files regularly on SD card (virtual or real one). Some apps might benefit from this (eg. you don't have to redownload huge map files for navigation app), but paradoxically Sygic Navigation app isn't storing map files on sdcard, but some crappy apps, where it doesn't make sense are. So in practice it's not very different from what we have on PC.