Are Overhead Projectors Still Used Today? A Look at Their Enduring Legacy and Niche Relevance
The rhythmic hum, the distinctive glow emanating from the lens, the faint scent of heated plastic – these sensory cues are deeply ingrained in the memories of many who experienced education or business presentations in the late 20th century. The overhead projector, or OHP, was once the undisputed king of visual aids. Its arrival heralded …