Walt Mossberg: How to survive 'digital tidal wave'

Tech columnist encourages use of new tools to show expertise

SAN JOSE, Calif. — The primacy of the desktop computer as the dominant digital device for both consumers and businesses is over, technology columnist Walt Mossberg told attendees at the annual California Realtor Expo last month.

In every industry, "the digital tidal wave is disrupting the way we do business," he said.