Sunday, 16 October 2016

Chapter 6 Understanding lnput
Impute is any data and instructions entered into the memory of a computer

  • the instructions that can be entered into the computer in the form of programs,commands and user responeses
An input device is any hardware component that allows users to enter data and instructions into a computer . For example, keyboard, mouse ,pen input and etc.

Keyboard

  • keyboard is an input device that contains keys that uses press to enter data and instructions into a computer
  • for the insertion point is a symbol on the screen that indicates where the next character you type will apper
Mouse

  • A mouse is a pointing device that fits under the palm of our had comfortably
  • some  of the mouse is wired or wireless
Other Pointing Devices

  • for the other pointing devices trackball is a stationary pointing device with a ball on top or side
  • beside that, a touchpad is a small , flat ,rectangular pointing device that is sensitive to pressure and motion
  • a pointing stick is a pressure-sensitive pointing device shaped like a pencil eraser that is positioned between keys on a keyboard
 Pen Input

  • with pen input that touch a stylus or digital pen on a slat surface to write , draw , or make selections
Game controllers

  • video games and computer games use a game controller as the input device that directs movements and actions of on-screen objects
  • for example gamepads , joysticks and wheels ,light guns , dance pads and motion-sensing controllers
Digital cameras

  • a digital camera is a mobile device that allows users to take pictures and store them digitally into the memory card 
Voice Input 

  • voice input is the process of entering input by speaking into a microphone
  • voice recognition is the computer capability of distinguishing spoken words
  • audio input is the process of entering any sound into the computer, for example  speech , music and sound effects
  • music production software allows users to record compose, mix , and edit music and sound
Video input

  • video input is the process of capturing full-motion images and storing them into a computer storage medium
  • for example web cam is a typeof digital video camera that enables a use to capture video and  still images , send e-mail messages with video attachments , add live images to instant messages ,broadcast live images over the interm]net and make video telephone calls
  • video conference is a meeting between two or more people by using internet
Scanners ad reading devices is also one of a input device

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