Yes, the Trip Festival’s conjunction of drugs, rock, and technology—acid and a.c. outlets!—was jarring. But it turned out to be, significantly, a quintessential display of the fusion that shaped the personal computer era: technology, counterculture, entrepreneurship, gadgets, music, art, and engineering. From Stewart Brand to Steve Jobs, those ingredients fashioned a wave of Bay Area innovators who were comfortable at the interface of Silicon Valley and Haight-Ashbury.

