Are you kidding? How did we ever use this primitive technology for so long? And why are some people still using it? Every Thursday, CTS will highlight the good, the bad, and the ugly of technology from days gone by in our #TBT Technology blog. Enjoy reliving the good old days!
Overhead projectors
A classroom classic, the overhead projector was a simple yet wonderful system for projecting images, text and drawings onto an appropriate screen. Transparent sheets of acetate were used in place of paper to enable presenters to transpose their presentation onto the screen in front of the class. Although likely still in use in some classrooms, these projectors have likely been rendered obsolete by modern projection technology and computers.
