it is more acceseble and low in price compaire to other projectors
it is more acceseble and low in price compaire to other projectors
The overhead projector was invented in the 1960's.
Using projector can look neat and professional. Masking way can be used to hide the content that you haven't say them. Then you can reveal one piece of information at a time when you talk about it.
The projector can reach a pretty high temperature if left on for a while. So I think the main danger of an overhead projector is simply the heat. ;)
My guess is that with LCD and DLP projector coming down in price, we will be seeing less and less of the overhead. When a video projector is used with an interactive whiteboard or tablet the possibilities are limitless.
projectionist
retroproyector
You don't need a slide projector or an overhead projector.
Advantage Enables a lot of people to be able to see something even from a distnace Disadvantage Image quality may not be as good when projected.
This is referred to as an opaque overhead projector, or sometimes simply as an "opaque projector." This is in contrast to the regular overhead projector which must have transparencies to project, an opaque projector can project an image of opaque objects such as the paper pages of a book.
What are the advantage and disadvantage of fidelio?"
Advantage and disadvantage of workshop