OUTPUT DEVICE Monitor
What is it? <ul><li>The information we obtain from the computer is called an output </li></ul><ul><li>The computer present...
Monitor <ul><li>It is the display screen of a computer </li></ul><ul><li>It is commonly used output device </li></ul><ul><...
Types of Monitor <ul><li>There are several types of monitor: </li></ul><ul><ul><li>Monochrome monitor </li></ul></ul><ul><...
Cathode Ray Tube (CRT) <ul><li>It is the cheapest type of monitor </li></ul><ul><li>It is large and bulky size </li></ul><...
Liquid Crystal Display (LCD) <ul><li>More expensive than the CRT monitor </li></ul><ul><li>It is flatter and less bulky, w...
Picture Quality <ul><li>The quality of the pictures depends on the SCREEN RESOLUTION </li></ul><ul><ul><li>Screen Resoluti...
Colour Monitor <ul><li>Choices of colour monitor </li></ul>VERY HIGH Super Video Graphics Arrays SVGA HIGH Video Graphics ...
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Monitor

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Monitor

  1. 1. OUTPUT DEVICE Monitor
  2. 2. What is it? <ul><li>The information we obtain from the computer is called an output </li></ul><ul><li>The computer presenting this information is called the output device </li></ul><ul><li>It is the display screen of a computer </li></ul><ul><li>There are several output devices: </li></ul><ul><ul><li>Monitor </li></ul></ul><ul><ul><li>Printer </li></ul></ul><ul><ul><li>Plotter </li></ul></ul><ul><ul><li>Speaker </li></ul></ul>
  3. 3. Monitor <ul><li>It is the display screen of a computer </li></ul><ul><li>It is commonly used output device </li></ul><ul><li>Images on a monitor are made up of thousands of tiny coloured dots called PIXELS. </li></ul><ul><li>The monitor is also known as Visual Display Unit (VDU) </li></ul><ul><li>The screen is the surface of monitor which display the text and pictures </li></ul>
  4. 4. Types of Monitor <ul><li>There are several types of monitor: </li></ul><ul><ul><li>Monochrome monitor </li></ul></ul><ul><ul><ul><li>Display text and graphics in white against a black background </li></ul></ul></ul><ul><ul><li>Colour monitor </li></ul></ul><ul><ul><ul><li>Display text and graphics in multiple colours </li></ul></ul></ul><ul><ul><li>Cathode Ray Tube (CRT) </li></ul></ul><ul><ul><ul><li>A specialized vacuumtube in which images are produced when an electron beam strikes aphosphorescent surface </li></ul></ul></ul><ul><ul><li>Liquid Crystal Display (LCD) </li></ul></ul><ul><ul><ul><li>Displays utilize two sheets of polarizing material with a liquid crystal solution between them </li></ul></ul></ul>
  5. 5. Cathode Ray Tube (CRT) <ul><li>It is the cheapest type of monitor </li></ul><ul><li>It is large and bulky size </li></ul><ul><li>Noisy, heavy and generates a lot of heat </li></ul><ul><li>Quickly becoming outdated </li></ul>
  6. 6. Liquid Crystal Display (LCD) <ul><li>More expensive than the CRT monitor </li></ul><ul><li>It is flatter and less bulky, with a higher quality display </li></ul><ul><li>Consumes less electricity and is much lighter </li></ul><ul><li>Become much more popular than CRT monitor </li></ul>
  7. 7. Picture Quality <ul><li>The quality of the pictures depends on the SCREEN RESOLUTION </li></ul><ul><ul><li>Screen Resolution means the number of pixels displayed on the screen </li></ul></ul><ul><li>There are two types of screen resolutions:- </li></ul><ul><ul><li>High-Resolution </li></ul></ul><ul><ul><ul><li>The monitor screen has more pixels </li></ul></ul></ul><ul><ul><li>Low-Resolution </li></ul></ul><ul><ul><ul><li>The monitor screen has fewer pixels </li></ul></ul></ul>
  8. 8. Colour Monitor <ul><li>Choices of colour monitor </li></ul>VERY HIGH Super Video Graphics Arrays SVGA HIGH Video Graphics Arrays VGA MEDIUM Enhanced Graphics Adapter EGA LOW Colour Graphics Adapter CGA RESOLUTION TYPE

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