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Projectors
Key Considerations
Resolution
Resolution refers to the number of dots of light that appear on
a screen or a projection to make up a projected image. Take care
to note the "native" resolution of the projector you're
interested in - while a projector may be able to work with several
different notebook computer resolutions, there is one native resolution
at which it works best.
Choosing the
right resolution for your projector is as easy as knowing the resolution
of your notebook. Don't forget, though, that if you plan on upgrading
your notebook after getting a new projector you're best off buying
a projector with a fairly high resolution that will match newer
laptops.
Your presentation
won't come to a screeching halt if your notebook and projector don't
have the same resolution. Virtually all models can accept higher
or lower resolution images than their native resolution, using interpolation
to either expand or compress the pixels that compose the image.
However, expect
to lower your standards a bit for for such interpolated images,
since this will usually degrade the quality of the image. The most
common resolutions, from cheapest to most expensive, are VGA (480x640),
SVGA (800x600), XGA (1024x768), and SXGA (1,280x1,024).
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