Wednesday, September 4, 2013

Input and Output Devices ~ ^_^

  
The Components of a Computer :
HARDWARE
  • Input Device : Allows you to enter data and instructions    into a computer.
  • Output Device : Hardware component that conveys information to one or more people.
  • System Unit : Case that contains the electronic components of the computer that are used to process data.
  • Storage Device : Records(writes) and/or retrieves(reads) items to and from storage media.
  • Communications Device : Enables a computer to send and receive data ,instructions and information to and from one or more computers or mobile devices. 
SOFTWARE 
  • System Software :
  1. Operating system
  2. Utility program 
  • Application Software 

What is Input ??

  • Input is any data and instructions entered into the memory of a computer.


(Example...)

What is Input Devices ??
An input device is any hardware 
component that allows users to enter data and instructions 
into a computer.

Examples

1. Keyboard

2. Pointing device
Mouse
• Trackball
• Touchpad
• Pointing stick

3. Microphone

4. Scanner

5. Webcam

6. Touch screens

7. Joystick

8. Digital Camera

9. Reading devices
Optical Character Recognition (OCR)
• Optical Mark Recognition (OMR) 
• Magnetic-Ink Character Recognition (MICR)
• Biometric input device



What Is Output?
  • Output is data that has been processed into a useful form.

Output Devices ? What is that ?
  • An output device is any type of hardware component that conveys information to or more people.


(Examples of output devices ..) 

 
That's all for this entry! =)

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