In order of popularity: Windows XP Windows Vista Mac OS X Linux FreeBSD Solaris HP-UX
Operating systems as a concept aren't criticized by sensible people, as there is simply no viable alternative for what they do.
Windows XP/7 is most commonly used. Linux Mint is good example of free GNU/Linux based OS.Mac OS X is only used on Apple computers.Windows XP and 7 are two most commonly used, but (arguably,...
hardware, firmware, kernel, memory manager, input output manager, file manager and application layer
Yes, it is a PC operating system released by Microsoft in October 2009.
The top three operating systems in terms of market share are Windows, Mac OS X, and Linux.