A monitor is display device used in conjunction with your video card to display images.

Monitor Specifications

 The first thing to consider with monitors is the technology of the monitor. Currently the choices are between CRT (cathode ray tube) or LCD (liquid crystal display). The next thing to consider is the cable technology. Again there are two; VGA (video graphics array) or DVI (digital visual interface). DVI is the newer technology. The viewable area of a monitor is another important specification. Monitors are measured in inches, diagonally from corner to corner. The viewable area is usually 1 inch less than the manufacturer’s size specifications. For example with a 17” monitor the viewable area is usually 16”. The last thing to keep in mind with monitors is the resolution that they are capable of producing.

Monitor Problems  

• Black border around image (image doesn’t take up the full screen)

• No picture or power

• Shaky or mis-colored Output

Monitor Troubleshooting  

• Check that the monitor cables are properly and firmly plugged in 

• Swap the power cable on the tower with the one for the monitor

• Adjust the monitor settings using the OSD (on screen display)

• Follow normal video card troubleshooting steps.

Knowledge Check #10

Which of the following is the newer technology with reference to monitors?

a. VGA

b. DVI

Please include your answer to this question in the email that you started previously.

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