Personal computers may be used to create, store, and deliver graphical
presentations. With computer-generated combinations of the five media
(text, images, sound, video, and animation) - that is, multimedia pre
sentations-the effectiveness of message delivery can be greatly increa
sed. The basic tools are (1) a personal computer; (2) presentation sof
tware; and (3) a projector to enlarge the monitor images for audience
viewing. Use of this new method has grown rapidly in the business-conf
erence world, but has yet to gain widespread acceptance at medical mee
tings. We review herein the rationale for multimedia presentations in
medicine (vis-a-vis traditional slide shows) as an improved means for
increasing audience attention, comprehension, and retention. The evolu
tion of multimedia is traced from earliest times to the present. The s
teps involved in making a multimedia presentation are summarized, emph
asizing advances in technology that bring the new method within practi
cal reach of busy physicians. Specific attention is given to software,
digital image processing, storage devices, and delivery methods. Our
development of a urology multimedia presentation - delivered May 4, 19
96, before the Society for Urology and Engineering and now Internet-ac
cessible at http://www.usrf.org - was the impetus for this work. Copyr
ight 1997 by Elsevier Science Inc.