Portable computers have all but replaced old-fashioned slide projectors and over head
projectors as the source of presentations. Instead of using 35mm photographic slides
or 8.5 by 11 inch overhead transparencies, more and more people are using software to
create colorful slide shows and animated presentations. These images can be shown
directly from the computer's disk and displayed on the PC's screen or projected on a
wall or large screen.
To get these presentations onto the "big screen" data projectors are becoming increa-
singly common. A data projector plugs into one of the computer's ports and then
projects the video output oto an external surface.
Newer models use digital light processing (DLP) technology to project brighter, crisper
images. DLP devices use a special microchip called a digital micromirror device, which
actually uses mirrors to control the images display. Unlike LCD-based projectors, DLP
units can display clear images in normal lighting conditions.
projectors as the source of presentations. Instead of using 35mm photographic slides
or 8.5 by 11 inch overhead transparencies, more and more people are using software to
create colorful slide shows and animated presentations. These images can be shown
directly from the computer's disk and displayed on the PC's screen or projected on a
wall or large screen.
singly common. A data projector plugs into one of the computer's ports and then
projects the video output oto an external surface.
Newer models use digital light processing (DLP) technology to project brighter, crisper
images. DLP devices use a special microchip called a digital micromirror device, which
actually uses mirrors to control the images display. Unlike LCD-based projectors, DLP
units can display clear images in normal lighting conditions.
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