A projector is an output devicethat projects an image onto a large surface, such as a white screen or wall. It may be used as an alternative to amonitoror television when showing video or images to a large group of people.
Projectors come in many shapes and sizes though they are commonly about a foot long and wide and a few inches tall. They can be mounted on ceilings or maybe freestanding and portable. Ceiling-mounted projectors are typically larger, especially ones that project a long distance (such as 30 feet or more). These projectors are commonly found in classrooms, conference rooms, auditoriums, and places of worship
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