VGA CARD

Graphics are an integral part of how we interface, or connect, with our PCs. The graphics we view via computer monitors are displayed with the assistance of a VGA, or video-graphics array, card. 

Definition

• A VGA card is a display adapter that provides base-level VGA resolution.
  

  Function

• A VGA card allows a computer monitor to display pixels, the basic units of image components, at a base level. The base resolution offered by VGA cards is typically at a value of 640 x 480 pixels. Computers with IBM operating systems typically display in VGA when booted up. The graphic cards or hardware drivers then switch on, offering advanced graphics functions.
  
  

  Process

  • VGA cards are plug-in cards that are inserted into the computer's motherboard and convert graphic patterns, or bitmaps, into electronic signals for the monitor's screen. A bitmap, or pixmap, is a binary map in which one bit, or basic computing unit of information, represents one pixel on the screen.
    

  
  

http://www.ehow.com/facts_6863255_function-vga-card_.html
Nudiya Syaif Millah
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