What is an operating system?

-          An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. The operating system is a vital component of the system software in a computer system. Application programs require an operating system to function.

There are many different kinds such as:

Microsoft:

-          Windows XP: Starter, Home edition, Professional.

-          Windows Server: 2008,2003.

-          Windows Vista: Starter, Home edition, Professional, Ultimate.

-          Windows 7 : Starter, Home edition, Professional, Ultimate.

Linux:

-          Ubuntu.

-          Edubuntu.

-          Kubuntu.

-          Lubuntu.

 To install an operating system you need to do the following steps:

First: Pre-Installation:

1-      Decide what you would like to do and find out the minimum + maximum requirements.

2-      Back up your data, in case an error happens in the installation process.

3-      Boot up.

Second:  Installation.

1-      Start the installation

2-      Choose which installation you want, a clean one or an upgrade.

3-      Partition your hard drive.

4-      Follow the instruction and fill with information when it needed.

5-      Reboot.

Third: Post-Installation.

6-     Check the drivers from control panel (device manager).

7-     Configure the security setting such as updates and firewall.

8-     Install an anti-virus to avoid damage.