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2. Overhead projector - Wikipedia

   en.wikipedia.org/wiki/Overhead_projector

   An overhead projector (often abbreviated to OHP ), like a film or slide projector, uses light to project an enlarged image on a screen, allowing the view of a small document or picture to be shared with a large audience. In the overhead projector, the source of the image is a page-sized sheet of transparent plastic film (also known as ...

3. LCD projector - Wikipedia

   en.wikipedia.org/wiki/LCD_projector

   An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is a modern equivalent of the slide projector or overhead projector. To display images, LCD ( liquid-crystal display) projectors typically send light from a metal-halide lamp through a prism or series of dichroic ...

4. Rear-projection television - Wikipedia

   en.wikipedia.org/wiki/Rear-projection_television

   Rear-projection television ( RPTV) is a type of large-screen television display technology. Until approximately 2006, most of the relatively affordable consumer large screen TVs up to 100 in (250 cm) used rear-projection technology. A variation is a video projector, using similar technology, which projects onto a screen .

5. I replaced my TV with the Anker Nebula projector - AOL

   www.aol.com/news/replaced-tv-anker-nebula...

   The juice wasn’t worth the squeeze. I wanted my room to feel less cluttered, and the television was a big part of the problem. I decided to replace it with an Anker Nebula Capsule portable ...

6. Opaque projector - Wikipedia

   en.wikipedia.org/wiki/Opaque_projector

   Opaque projector. An episcope which was used in a University of Cambridge lecture hall in the late 1800s. The opaque projector, or episcope is a device which displays opaque materials by shining a bright lamp onto the object from above. The episcope must be distinguished from the diascope, which is a projector used for projecting images of ...

7. List of obsolete technology - Wikipedia

   en.wikipedia.org/wiki/List_of_obsolete_technology

   Overhead projector and slide projector: Video projector: Primarily for continued use of older materials. Some teachers find the overhead projector more convenient for lectures depending on their teaching style. Phonograph and phonograph record: Audio cassette, 8 track tape, CD, digital audio: Used to play older or archived recordings.