Electronic mail is a facility, analogous to postal mail, in which computers are used to compose, deliver, and receive
messages. Traditional electronic mail systems rely solely on text as the medium of communication. A multi-media
electronic mall application, Mail, combines the media of Rich Text, voice, images, and electronic documents to facilitate
With Mail, these various media can be integrated into a single message. The variety of available media and the complexity
of the messages that result from their combination make it important for Mail to have a simple user interface. It was
possible to develop a simple, graphically-based interface that would accommodate Mail's message complexity.
The integration of these diverse media is made practical by the rich operating environment in which Mail runs. Modern
advances in hardware, operating systems, libraries, and servers make possible this powerful multi-media electronic mail