A desktop environment is a collection of software designed to give functionality and a certain look and feel to an operating system.This article applies to operating systems which are capable of running the X Window System, mostly Unix and Unix-like operating systems such as Linux, Minix, Solaris, FreeBSD, and Mac OS X. Microsoft Windows is incapable of natively running X applications; however, third-party X servers like Cygwin/X, Exceed, or Xming are available.