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INPUT DEVICES

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  1. INPUT DEVICES NURIZAH RAMLI 10D0124 DTE

  2. WHAT IS INPUT? • Any data or instruction entered into the computer is known as INPUT. • An input device helps you to communicate with the computer. • To enter information and issue commands, you use input devices. • Examples of input devices: • Keyboard • Mouse • Scanner • Microphone • Digital Camera and Web Camera

  3. KEYBOARD • The keyboard is the most common and widely used input device. • It is made up of buttons called 'keys'. The keys are arranged into sections: • • Alphabet keys • • Function or F keys (F1, F2, F3) • • Numeric keys (one set above the alphabet keys and • a numeric keypad on the right) • • Arrow keys • • Command keys (insert, delete, home, end, page up/down)

  4. PICTURE OF A KEYBOARD

  5. MOUSE • A mouse is an input devices that fits comfortably under the palm of your hand. • A mouse is a pointing device. • We use mouse to control the movement of the mouse pointer on the screen and to make selections from the screen. • The bottom of a mouse is flat and contains a mechanism that detects the movement of a mouse.

  6. TYPES OF MOUSE • optical mouse • Mouse in which the ball is replaced by an optical system (light-emitting diode and sensor); it has no movable parts. • wheel mouse • Mechanical or optical mouse that contains a scroll wheel. • cordless mouse • Mechanical or optical mouse connected to the computer by infrared or radio signals.

  7. PICTURE OF A MOUSE

  8. SCANNER • A scanner is a light-sensing input device that reads printed text and graphics and then translates the results into a form the computer can use. • The image or text can be saved or changed on the computer.

  9. TYPES OF SCANNER • bar code reader • Device that uses an optical scanning process to decode information contained in bar codes. • optical scanner • Equipment that converts a document’s graphics or texts into digital data.

  10. PICTURES OF SCANNER Optical scanner Bar code reader

  11. MICROPHONE • microphone • Device that converts electric pulses into broadcast or recorded sounds. • A microphone allows you to record your voice to the computer. • It also lets you speak to other people using computers or even on the telephone. • A microphone is also called a mic.

  12. PICTURE OF A MICROPHONE

  13. DIGITAL CAMERA AND WEB CAMERA • Web camera • Miniature digital camera used to transmit video images in real time or for videoconferencing over the Internet. • digital camcorder • Portable video camera in which the recording tape is replaced by a processor, which records and stores sounds and images in digital format. • digital camera • Camera that contains a sensor and a microprocessor rather than film; it records and stores images in digital form, which can then be viewed on a screen.

  14. PICTURES OF CAMERA DIGITAL AND WEB CAMERA

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