A digital projector (informally called a PowerPoint projector, after the slideshow-creating program from Microsoft Office) is an electro-optical machine which converts image data from a computer or video source to a bright image which is then imaged on a distant wall or screen using a lens system. Its most common use is to display animated slide shows cabled to it from a computer. Though widely used in offices and schools, it is rarely used at home, where photo slideshows can be burned to DVD and played on a TV set.

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