Many of us remember the old overhead projector from our school days. Think of a document camera as a contemporary version, capable of taking or relaying an image of whatever is placed beneath its lens ...

Plug the USB cable into your computer's USB port. If you have a Mac, you may need an adapter. If you are using a classroom computer, plug it directly into the computer. If there is a power button, ...

Carlos Soto is an award-winning reviewer and journalist with 20 years of experience covering technology and business within various sectors and industries. In the classroom, document cameras are like ...