A beamer, also known as a projector, is an electronic device that projects an image onto a screen or wall. It is commonly used in classrooms, conference rooms, and movie theaters to display visual information to a large audience. A beamer works by illuminating an image through a light source and then projecting it through a lens onto a surface.
Modern beamers can display high-definition images and videos, and many come with built-in speakers for audio. They typically connect to a computer, tablet, or other mobile device through HDMI, VGA, or USB cable. Some beamers also offer wireless connectivity options, making it easier to connect with multiple devices on different platforms.
Beamers come in different sizes and prices, with more advanced models costing several thousand dollars. They are available from a range of manufacturers such as Sony, Epson, and BenQ. Additionally, some beamers are designed for specific purposes such as home theater, gaming, and business presentations.
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