the white collar work force, less than 5% now use computers mostly because of their complexity. macintosh is designed for simplicity, using a palm-sized unit called a mouse. >> it was the first time a machine was personal, it was simple, it was friendly. >> it took the computer out of the exclusive domain of geeks and nerds and people who had memorized those commands and put it on the desk of everybody, untrained non-technical people. >> stores around the country put them on sale today and analysts say it's a good bet that macintosh could soon be the biggest apple of the industry's eye. >> it's got its best years far ahead of it. >> eventually i want to be able to carry my mac around with me, walk away with it in my pocket. >> you really do like that mac. would you trade it for an ibm? >> are you kidding? >> as materials sciences progressed, more and more circuitry keeps getting put on smaller and smaller chips, circuit boards, so the closer together elements on a chip are, the faster the motion of signals