Windows Operating System

Windows OS includes operating system both 32 and 64 bit ranging from Windows Xp, Windows Vista and Windows Seven. Windows XP is targeted at home usersand offers additional features such as support for Windows Server domains and two physical processors , and is targeted at power users, business and enterprise clients. Windows Vista contains many changes and new features , including an updated graphical user interface and visual style dubbed Windows Aero , a redesigned search functionality, multimedia tools including Windows DVD Maker, and redesigned networking, audio, print, and display sub-systems. Windows 7 is intended to be a more focused, incremental upgrade to the Windows line, with the goal of being fully compatible with applications and hardware with which Windows Vista is already compatible.

Mac Operating System

Macintosh to help make the machine appear more user-friendly and to distance it from other operating systems such as MS-DOS, which was more arcane and technically challenging. Mac OS X's core is a POSIX compliant operating system (OS) built on top of the XNU kernel , with standard Unix facilities available from the command line interface . Apple released this set of software as afree andopen source operating system named Darwin. On top of Darwin, Apple layered a number of components, including the Aqua interface and the Finder , to complete the GUI - based operating system which is Mac OS X.

 

Linux Operating System

Linux is predominantly known for its use in servers, although it is installed on a wide variety of computer hardware, ranging from embedded devices and mobile phones to supercomputers. Linux distributions , installed on both desktop and laptop computers, have become increasingly commonplace in recent years, partly owing to the popular Ubuntu distribution and the emergence of netbooks . The rest of the system usually comprises components such as the Apache HTTP Server, the X Window System, the GNOME and KDEdesktop environments, and utilities and libraries from the GNU Project (announced in 1983 by Richard Stallman ). Commonly-used applications with desktop Linux systems include the Mozilla Firefox web-browser and the OpenOffice.org office application suite