The presentation of text, graphical images, moving images (animation, video clips), and sound in a single package, to create an effect greater than the sum of the parts.

A graphical browser such as Mosaic can be used as a multimedia presentation device, due to its ability to launch external programs to display data of any type.

This has become a buzzword referring to almost any form of computing which deals with anything more than basic text, but at its core, multimedia means the coherent presentation of data in a fashion that uses as many senses as possible to convey an idea.