PowerPoint is a presentation program developed by Microsoft that is commonly used for business and educational presentations. Presentations are comprised of slides that can contain text, images, audio, and video. The basic functions of PowerPoint include creating and formatting slides, adding transitions between slides, and performing slide shows. Common tools include shapes, tables, charts, and media insertion. Basic editing includes navigating slides, copying/pasting content, and arranging elements. Slide shows can be customized with features like headers/footers, notes, and screen recording.