This document defines and compares various multimedia concepts including multimedia, hypertext, hypermedia, hypervideo, and hyperaudio. It discusses how these concepts integrate different media types like text, graphics, audio and video within a digital environment. It also covers three modes of transmitting multimedia data: asynchronous, synchronous and isochronous. The key aspects highlighted are the seamless integration of various media enabled by digital technologies and interactivity allowed by hyperlinks and hypermedia.