For the teachers and other professionals in the audience who use overhead projectors regularly, the AVerVision 150 Portable Document Camera could save you some much needed time. Or not. Equipped with ...

Wayne Rash is a longtime technology journalist who has directed product testing centers. He is President of Wayne Rash & Associates, an analysis and editorial services firm located near Washington, ...

Document cameras are amazingly useful tools. These devices let users project the images of a wide variety of items using the video projector without first creating slides or photographs. Since some ...