Multimedia is information that is presented to the user in multiple formats. As opposed to a strictly textual representation, a multimedia presentation frequently contains audio, video, pictures, and sometimes even smells.

De to the use of high bandwidth technologies such as audio and video, multimedia presentations are almost always vastly larger than their pure text counterparts.

No, but the term multimedia is sometimes confused with the medium that houses the presentation. Although CD-ROM's are a frequent storage medium for the delivery and viewing of multimedia presentations, because of their large capacity for data, they are unrelated to the presentation itself.

A multimedia presentation can be downloaded over the Internet, stored on a hard disk, or even encoded onto a memory stick. It is the usage of multiple forms of data other than text that makes a work a multimedia presentation, not the data medium that contains it.