Operating systems have many functions: A user interface is a program ... sometimes known as WIMP (Windows, Icons, Menus, Pointers) interface mobile user interface (Mobile UI) command line ...

What was Microsoft’s best Windows operating system of all time ... XP’s Start menu — a straightforward list of apps and functions — still remains the best ever. Ditto for the background ...

First of all, there is no need to panic about this date. Windows 10 will theoretically continue to run indefinitely, as Microsoft is not discontinuing the functionality of the operating system ...