It's been a month of seismic change for the tech sector. Hewlett-Packard, the largest computer and printer mak...er in the world, may begin to transition away from hardware by jettisoning its PC division. Meanwhile, Apple is facing the end of an era, with the announcement that visionary leader Steve Jobs is relinquishing his role as CEO. Knowledge@Wharton asked Wharton management professors Saikat Chaudhuri and David Hsu to discuss the outlook -- and future opportunities -- for HP and Apple.