Video Graphics Array (VGA)

Legacy system and most computers offer this. First introduced in 1987 with IBM PS/2 computers.
Analog Component Video – separate R,G,B Channels.
 

Mechanical – 15pin D-subminiature VGA connector
 

Resolutions covered

  • VGA 640×400px @70 Hz
  • SXGA 1280×1024px @85 Hz
  • upto QXGA 2048×1536px @85 Hz

Supports high definition video 1080p.

Note – Although LCD monitors are digital devices. Most LCD monitors provide VGA ports to support backward integration with legacy computers.


VGA Port (Picture source. User-granted GFDL http://commons.wikimedia.org/wiki/File:VGA_port.jpg)

Digital Visual Interface (DVI)

Designed to support transfer of Digital Video content, as replacement for VGA.
Maximum Resolution 2048x 1536

Note – To support legacy VGA monitors, some DVI interface include analog signals. In such case, a converter is used to connect to a VGA port.


Male DVI Cable (Picture source. http://en.wikipedia.org/wiki/File:Dvi-cable.jpg)

High Definition Multimedia Interface (HDMI)

  • Latest Digital Interface
  • Supports both Audio and Video interface
  • All new products including blue-ray players work on HDMI.
  • Maximum Resolution HDTV 720P and 1080i

 


HDMI Cable (Picture source. http://commons.wikimedia.org/wiki/File:HDMI_connector-male-ar_5to4-fs_PNr%C2%B00270.jpg)

 
Prodigy Electronics, develops various video products for niche applications. Send your enquiry to info@prodigyelectronics.com for more information on Prodigy’s video solutions.