Powerpoint projectors - beamer presentations / projector presentation / boardroom projections
Powerpoint projectors are essentially
video projectors with a data input. These are often referred
to as "data projectors", although in the modern age the two
terms are interchangeable as it is almost impossible to buy a video
projector which is not also a data projector.
Powerpoint projectors come in various
different types and resolutions which we will explain next.
The follow terms used to describe projectors actually refer to the
projection technology used in creating the image: LCD, DLP,
CRT & LCOS. For the purposes of most powerpoint
presentations which technology is used is irrelevant and therefore
we will skip any further explanation for the moment (more detail can
be found here).