Projection systems are devices that display images or videos onto a surface, typically a screen or wall. They work by using a light source, such as a lamp or LED, to project an image created by a computer or video source. Common types of projection systems include LCD (Liquid Crystal Display) and DLP (Digital Light Processing) projectors, each with unique technologies for image clarity and color accuracy. These systems are widely used in various settings, including classrooms, business meetings, and home theaters. They allow for larger-than-life visuals, making presentations and entertainment more engaging. Additionally, many modern projection systems support wireless connectivity, enabling easy access to content from smartphones and laptops.