1. BRIDGE COURSE of INFORMATION & COMMUNICATION TECHNOLOGY
ACTIVITY – 3
UNDERSTAND THE VARIOUS COMMON ELEMENTS OF THE OPERATING SYSTEM

2. Agenda of this activity
Describe basic functions of an Operating System.
Describe the parts of window's Desktop environment.
Make the use windows Start Menu.
Effectively use windows applet like media player, calculator etc.
Describe the various tool bars of Windows OS.
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3. What is an Operating System
AN OPERATING SYSTEM IS A COLLECTION OF SOFTWARES THAT MANAGE COMPUTER AND THEIR HARDWARE RESOURCES AND PROVIDES COMMON SERVICES FOR COMPUTER PROGRAME.

4. Our OS acts like a telephone:-The Intermediater
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5. Purpose of an Operating System
Our computer cannot work with out an Operating System.
Operating System acts as intermediater between us and the physical parts of the computer (screen, keyboard, hard disk, printer,...), making it easier to handle.
For example, there is no need for us to know exactly in what part of the hard disk we have saved a certain document we created, the operating systems takes care of it.

6. Examples of popular OS GNU/Linux
Microsoft Windows: Windows 97,Windows XP
Unix
IBM z/OS

7. Tour of Windows XP

8. See this recognize as Windows XP

9. What we see when we start computer-Desktop The Desktop is the on-screen work area on which windows appears.

10. What is an Icon
On the desktop we have icons that allow us to open the corresponding program.
For example, by clicking on the icon internet Explorer will open up.

11. The Bars and Start Button
Task Bar. The task bar is what appears on the bottom of the screen. On the bottom left corner there is the Start button. Next we have the area for shortcuts, then the programs running, and lastly the notification area.
In windows the Task Bar looks like as shown below:-

12. Start Button:-  The Start Button is the button through which we can access the entire breadth of options that Windows XP offers us.

13. The title bar contains the name of the program you are working with (Notepad) as shown in the picture below:-
Title Bar:-
The minimize button shrinks the window
The maximize amplifies the size of the window to the whole screen.
The restore button restores the window to its original state.
The close button closes the window.
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14. Tool Bar, Scroll Bars, Status Bar
The tool bar contains icons to immediatelly execute some of the most often used commands.
The scroll bars allow us to move through out the page in a quick and simple manner. Simply drag the bar with the mouse or click on the arrows.
The status bar is used to give the user certain information.This information varies depending on the window that is opened at the time.
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15. Windows explorer Open the Explorer as follows:
The Windows Explorer is the File Manager. Through it we can delete, see, copy, or move files and folders.
Open the Explorer as follows:
Click on Start
Select All programs
Select Accessories
Select Windows Explorer

16. Windows explorer… See the picture

17. The Windows Explorer´s window

18. Searching:-Search function provided by Windows to locate the file or folder quickly
Click Start
Select on the menu Search

19. The general search page

20. Searching Files or Folders
For adding more specific information about the file or folder you want to search use this:-

21. The Recycle Bin
The Recycle Bin a space reserved to store information that is deleted so that in the event of deleting a file or folder by mistake it is possible to get it back

22. Windows Applet:- Calculator Picture below shows the way to reach calculator
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23. Calculator:- The picture below shows the windows calculator available
Calculator:- The picture below shows the windows calculator available. This performs all sort of basic calculations
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24. Windows Media Player click on this icon

25. Help:- To access help click this icon

26. References 26