Input/Output Devices

Input Devices

MOUSE

• A mouse is a pointing device that consists of an object held under one of the users hands with one or two buttons and a scrolling wheel.
• The mouse's motions translates into a motion of cursor on a display.

KEYBOARD

•The keyboard remains the most commonly used for direct  input into computers

•A keyboard has characters engraved or printed on the keys and each press of a key corresponds to a single symbol

•Most keyboard keys produce letters, numbers or signs, others keys produce actions or commands

WEBCAM

Tablet

• A tablet allows users to create and draw images, watch videos play games listen to music.
• The tablet is usually used by business men.

                Microphone

• A microphone converts sounds into electrical waves.
• Microphones are used in telephones, kareoke systems, tape recorders etc. For webcam it is essential to have a microphone so you can talk to the person you are sharing the webchat with and so that the person can hear you.

      
A  webcam is a camera that is connected to a computer, either directly or wirelessly
                    

              

                 Webcam

      

• They are known for their low costs and flexibility
• They can be used for business and pleasure.

         TOUCH SCREEN

 

•A Touch Screen is a visual display that can detect the presence and location of a touch within the display area.

•It works by touching the screen with a finger or hand.

             SCANNER

 •A scanner is a device that scans images, printed text, handwriting or an object and changes it to a digital image.

    GAMES CONTROLLER

•A games controller is used with games or entertainment  systems used to control an object or character. 

•http://www.youtube.com/watch?v=9MOIkSceV6k


         Output Devices

                   Printer

• A printer is able to print the data stored in a computer it is connected to.
• It can print documents, pictures and graphics usually on paper.
• It is connected to a computer through a USB device.
• Your images or data can be printed in black or colour depending on ur printer.

                    

Monitor

• A monitor is a screen that displays output from a computer.
• It allows the user to see programs they are vieweing on the computer.
• It shows images, videos, animations and graphics.

            

Sound

• Speakers are already installed into your computer but have low quality sound.
• You can purchase better speakers and plug them into your computer for better clearer sound.
• Speakers features usually consist of a LED pwer indicator, a headphone jack, controls for volume and a remote volume control.