overhead projectorsI was visiting a hospital, and passed by a seminar room where my eye caught the items in the photo, sitting on a custom stand in the corner.

Remember these? Used to be, they were so ubiquitous that they were instantly recognizable: an overhead foil projector and a circular magazine slide projector.

These days, no one uses them anymore… it’s been years since I even saw one of these. It’s PowerPoint everywhere. In fact this seminar room had a new LCD projector fixed to the ceiling. But these academic institutions are conservative: they throw nothing out. These useless devices may well linger there for years. And so, we are afforded a peek into a not all that distant past..