SAN FRANCISCO  The global credit crisis may have caused the decline in consumer and business spending that is assaulting the giants of high tech. But as the dominant technology companies try to emerge from this slump, they may find themselves blaming people like David Title just as much as they blame Wall Street.

Mr. Title, a 35-year-old new-media manager at a film production company in New York, has dropped his cable subscription and moved to watching most of his television online  free. While shopping for a new laptop for his girlfriend recently, he sidestepped more expensive full-featured computers and picked a bare-bones, $200 Asus EeePC laptop, also known as a netbook.

“We’ve reached one of those moments in tech history when there are low-priced and free alternatives that are both user-friendly and reliable enough to make the switch,” Mr. Title said. “Then there’s the extra bonus of saving some cash.”

Silicon Valley has been gripped by a growing sense that the economic retreat might do more than depress earnings. There is too much ingrained optimism here to think that the tech sector will not bounce back, stronger than before.