What is another word for overhead projectors?
Pronunciation: [ˌə͡ʊvəhˈɛd pɹəd͡ʒˈɛktəz] (IPA) 
There are a variety of synonyms for the term "overhead projectors." Some common alternatives include "transparency projectors," "slide projectors," and "projection devices." Transparency projectors specifically refer to devices that project images onto clear plastic sheets, also known as transparencies. Slide projectors, on the other hand, use physical slides to project images onto a screen. Projection devices can refer to any type of projector, including those used for home theater or business presentations. While overhead projectors were once a staple of classroom and business presentations, they have largely been replaced by newer technology such as digital projectors and interactive whiteboards.
