Operating Systems
 NO     OPERATING SYSTEM                                                DESCRIPTION         
   1        LINDOWS In the year 2003 a new operating system is launched by microsoft which is a good 
      combination of Windows and Linux to make windows more interactive GUI with the 
      powerful capabilities of UNIX and Linux.
2      WINDOWS XP In the year 2001 Microsoft has launched ultra interactive and more powerful operating
      system with more and user-friendly advanced options as compared to Windows 98,Me 
      and 2000. It is named as Windows XP (windows Experience) in which first "Win Whistler"
      is alunched by Microsoft as a Beta version then "Ms Windows XP" is launched by
       Microsoft and then 'Windows XP Billgates Version" is launched.
3      WINDOWS ME In the year 2000 Microsoft has launched another interactive and more powerful operating
      system with more advanced options as compared to Windows 98. The newer and best
      feature is System Restore which takes you computer again in undo state and Past
      Tense state of windows.It is called Windows Millennium Edition because it has been
      launched in the millennium of the year 2000. It has some new programs like Microsoft 
      Windows Media Player 7 (with skin changing capability) and Microsoft Movie Maker.
4     WINDOWS 2000  This is the most powerful operating system used in today's computers. This operating
      system has a large variety of system and networking tools for networking.It has a variety
                      of multimedia, system tools and faster Internet accessing options. It was launched  by
                 Microsoft in the year 1999. It is more powerful and advanced than Windows 98 and 
      Windows NT. It has advanced and easier networking tools for controlling webservers. 
                      It enables the administrator to make a website with great functionality and powerful and 
                 fast access. It has also given more security than Windows NT.    
5       WINDOWS 98      The Windows 98 named operating system is much greater and powerful than Windows 
                      95. It contains some new features, basic skills and extra tips and solutions for using the
                         the Internet such as to run any program in windows 98 you have a choice of single click 
                    to open just as in the Internet when you click on the hyperlink.    
6       WINDOWS 95     Windows 95 is the first 32-bit operating system which has multi-processing and
      multi-tasking because many user can use it and do many jobs at a time.It provides many
      facilities such as internet and multimedia. It provides many other types of accessories
      using interactive GUI. It is more powerful and advanced operating system  as compared
      to Windows 3.1 . It was the first 32-bit GUI operating system in used computers.
7       WINDOWS NT    Windows NT is used for networking where many terminals,workstations and VDUs are
    working together and connected with one main server which loads Windows NT. It has
    many tools and options for controlling Network and its client's computer. It is only  used
      for Networking ,web-hosting and in Server Administration.    
8       WINDOWS 3.1 Windows 3.1 is the old GUI operating system run on the DOS it works like windows
      but it is also 16-bit operating system and it is only supports 256 colors. It was launched
      by Microsoft in 1985 which is the first GUI of Microsoft which is now obsolete.
9           MS-DOS         Bill Gates who is the chairperson of Microsoft Corporation has launched the first
      operating system for non-IBM computer which loads by only one floppy or harddisk that’s
       why it is called Disk Operating System (DOS). It is very slower than windows and do only
      one job at a time and with a single user because it is a 16-bit operating system.
10           PC-DOS      Microsoft company has launched the another operating system for IBM PCs which works
      and operates just like MS-DOS but used in IBM's PC that’s why it is called PC-DOS.
11            LENUX LENUX is the latest operating system just like Windows 2000 and Windows Me.It is more
      powerful and advanced operating system than Windows2000 and Windows Me.It supports
      a vast variety of internet options from accessing,browsing to web making,serfing and 
      controlling. It has more powerful, fast and interactive GUI than Windows but it is much 
      difficult to understand and operate as compared to Windows.    
12             WAN        WAN is also an old operating system used for networking like LAN but it covers large
      area of networking and different small LANs or network systems in other organizations,
      buildings, cities and countries that’s why it is called Wide Area Network.  
13             UNIX    UNIX is an old GUI operating system used on networking and web development systems.
    It is the only old operating system used in today's computers. It was developed by Bell
      Laboratories. Today it is only used in web development and server managements.
14            XENIX    This operating system was used on old,slow and big computers such as IBM mainframes
      and mini-computers. Today it is now obsolete.      
15           CPM/40    It is an old operating system which was used on different old computer.  
16              TOS           Tape Operating System is same booting feature just like as DOS but it was loaded by 
         magnetic tape that's why it is called TOS. It is also obsolete.