A demo, short for demonstration, is a presentation or showcase of a product, service, or concept. It is often used in various fields, including technology, music, and marketing, to give potential customers or audiences a clear understanding of what is being offered. Demos can take many forms, such as live presentations, video recordings, or interactive experiences. In the tech industry, for example, software companies often create software demos to highlight features and benefits of their applications. Similarly, musicians may produce music demos to share their sound with record labels or fans. Overall, demos serve as a valuable tool for communication and engagement.