This document discusses different types of operating systems including embedded, stand-alone, and server/network operating systems. It provides examples of embedded operating systems like Windows Embedded CE, Windows Phone 7, iPhone OS, Google Android, Embedded Linux, and Symbian OS. Examples of stand-alone operating systems given are DOS, Macintosh OS, Windows 2000 Professional, and Windows 7. Server/network operating systems examples include Netware, Windows NT Server, Windows 2000 Server, UNIX, Linux, and Solaris.