output devices [1]![click to hear](/images/speaker.jpg)
Electronic devices used to view or print the results of data processing done on a computer.
video monitor ![click to hear](/images/speaker.jpg)
Device with a cathode ray surface that displays computer-generated graphics and texts visually.
centering control ![click to hear](/images/speaker.jpg)
Button that adjusts the position of the image on the screen.
horizontal control ![click to hear](/images/speaker.jpg)
Button that adjusts the width of the image.
vertical control ![click to hear](/images/speaker.jpg)
Button that adjusts the height of the image.
power switch ![click to hear](/images/speaker.jpg)
Mechanical device that turns the monitor on or off.
brightness control ![click to hear](/images/speaker.jpg)
Button that increases or decreases the contrast between the light and dark parts of an image.
power indicator ![click to hear](/images/speaker.jpg)
Signal light indicating that the screen is on.
contrast control ![click to hear](/images/speaker.jpg)
Button that adjusts the black and white part of an image.