The man who founded the world's largest PC company thinks the best is still to come after a quarter-century of the IBM PC. Twenty-five years have passed since IBM launched its version of the personal computer. Apple Computer may have captured the attention of early computer hobbyists with its first products, but IBM's PC made the business world sit up and realize that personal computers could be much more than toys. Michael Dell started off using PCs to create homework shortcuts, the way many young people at the time discovered the new devices. Few people, including Dell's parents, realized exactly...