3. 1.KeyboardKeyboard 2.MouseMouse 3.MicrophoneMicrophone 4.ScannerScanner 5.WebcamWebcam 6.Bar code readerBar code reader 7.Optic penOptic pen 8.JoystickJoystick 9.Touch screen monitorTouch screen monitor INPUT DEVICES ARE PROVIDING DATA TO COMPUTER. THE MOST USED ARE: Following

4. 1.Screen or monitorScreen or monitor 2.PrinterPrinter 3.SpeakersSpeakers 4.HeadphonesHeadphones 5.PlottersPlotters 6.FaxFax DEVICES THAT ARE USED THE COMPUTER TO SHOW RESULTS. THE MOST USED ARE: Back

5. Keyboard Is used to

6. Mouse Is used to

7. Microphone Is used to

8. Scanner Is used to

9. Webcam Is used to

10. Bar Code Reader Is used to

11. Optic Pen Is used to

12. Joystick Is used to

13. Touch Screen Monitor Is used to

14. Screen or Monitor Is used to

15. Printer Is used to

16. Speaker Is used to

17. Headphone Is used to

18. Plotters Is used to

19. FAX Is used to

20. Keyboard The keyboard is the most important input device of a computer and used to enter data or information to the computer, is composed of keys: letters, numbers, punctuation marks and special functions.

21. Mouse It is a small input device which can control the movement of a pointer on the screen, sliding on a flat surface. Additionally, certain actions can be executed by pressing a button mouse Click: is press the left button (most often) or the right mouse button and release immediately. Double click: is to make two quick consecutive clicks a mouse button (Usually the left). Equivalent to pressing Enter.

22. Microphone Is an electroacoustic transducer. Its function is to transform (translate) the vibrations due to acoustic pressure exerted on the capsule by the sound waves into electrical energy or record sound from any place or item.

23. Scanner A scanner lets you copy an image or a printed document on your computer.

24. Webcam A web camera (webcam English) is a small digital camera connected to a computer, which can capture images and transmit them via the Internet, either to a web page or one or more computers in private. Webcams are usually formed by a lens, image sensor and the circuitry needed to handle them.

25. Bar Code Reader Scanner using a laser reads a bar code and outputs the number that shows the bar code, no image Bar codes are read from a small spot of light on the bar code symbol printed

26. Optic Pen The optic pen is an ordinary pen that is used on a computer screen or other surface to read them or serve as a pointing device and usually replaces the mouse or with less success, to the digitizer. Is connected to an electric cable and requires special software to operate. Using the pen touches the screen the user can choose the commands of the programs (the equivalent of a mouse click) or by pressing a button on one side of the stylus or pressing it against the surface of the screen.

27. Joystick Is a device used to play on the pc.

28. Touch Screen Monitor Is a screen by tapping directly on the surface allows the entry of data and commands to the device. In turn, acts as output device, showing the results previously entered

29. Screen or Monitor The computer monitor or computer screen, but it is also commonly known as 'screen' is an output device through an interface, shows the results of computer processing.

30. Printer A printer is a computer peripheral that allows you to produce a permanent copy text or graphics of documents stored in electronic form, print them on physical media, usually paper or transparencies, using ink or laser technology

31. Speaker Is an electroacoustic transducer used for sound reproduction. One or more speakers can form a sound barrier.

32. Headphone Hearing aids receive sound through a microphone, which then converts sound waves into electrical signals and then sends the sound to the ear through a speaker

33. Plotters Is a computer printing device for printing vector graphics.

34. FAX Called fax, short for facsimile, a system that allows a remote transmission over the telephone line or graphics written (fax).