In the 1980s, the first data projectors weighed more than 40 pounds, using a single cathode ray tube (CRT) to project a monochrome image. When color units came out, they weighed even more because ...

The slide show's history goes back centuries, and actually predates photography. Starting around 1700, traveling "magic lantern" shows -- featuring hand-painted images projected with lamp and ...

1980s: The Data Projector. Photo: Computer Desktop Encyclopedia. A Brief History: A data projector takes signals from a video source, such as a computer or television, and projects an image on a ...

New Delhi: Epson, a leading manufacturer of data projectors, has unveiled the Epson EMP-1810 and EMP-1815 multimedia projectors. In response to the discerning digital display needs of modern ...