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Summary: A data projector is a piece of hardware used to display images or screen shots from a computer to a wall or big screen. Find out how data projectors work through a VGA or RCA connection with help from a computer and network administration specialist in this free video on data projectors.
"Hello my name is Mark Daly and today I'm going to talk about how a data projector works. A data projector is a piece of hardware used to display images or screen shots from your computer or laptop to a wall or a big screen. The way a data projector works is through a VGA or SVIDEO or RCA connection from the computer to the data projector. Data projectors today are pretty portable, they're not much bigger than the laptops. Some common uses for a data projector would be to take your laptop with a presentation on it into a conference room and be able to display your screen or your presentation in a much larger format on a wall or a big screen. Data projectors of course need a power source and an image input source which would be from your computer or your laptop. And that is how a data projector works."
eHow Article: How Does a Data Projector Work?