MS Windows 7

Windows 7 Starter:

Windows 7 Starter is the edition of Windows 7 that contains the fewest features. It is only available in a 32-bit version and does not include the Windows Aero theme. Windows Aero - Authentic, Energetic, Reflective, and Open - is a set of interface and design guidelines that were introduced by the Windows Vista operating system.

Windows 7 Home Basic:

Windows 7 Home Basic is available in certain countries. Some Windows Aero options are excluded along with several new features.

Windows 7 Home Premium:

This edition contains features aimed at the home market segment, such as Windows Media Center, Windows Aero, and multi-touch support.

Windows 7 Professional:

This edition is targeted towards enthusiasts and small-business users.

Windows 7 Enterprise:

This edition targets the enterprise segment of the market and is sold through volume licensing to companies which have a Software Assurance contract with Microsoft.

Windows 7 Ultimate:

This edition contains the same features as Windows 7 Enterprise, but unlike the Enterprise edition, it is available to home users on an individual license basis.

OPERATING SYSTEM

An operating system is an organized collection of programs that is very powerful as it controls the overall operations of a computer. That is, it manages the system resources, runs programs is response to commandos from the operating system also forms a foundation on which applications software - such as Word processing Spreadsheet, and Computer Aided Design and Accounting programs are developed and executed. Examples for operating system are WINDOWS. 95/98/XP, Windows NT/2000, UNIX, OS/2, SOLARIS, Windows Vista, and LINUX,

To use any computer the operating system should be present in the RAM. This software is stored on a secondary storage media like a Hard Disk or CD (Compact Disk) or pen Drive. The computer reads this medium and contents are transferred to the RAM. This process of loading the Operating system from the secondary storage onto the RAM is known as booting.