After all, when IBM's Thomas Watson said "computer," he meant "vacuum-tube-powered adding machine that's as big as a house." It's fair to say that few people ever wanted one of those, regardless of the size of their desk.

(IBM did stay in the business, of course. For details, see our retrospective, ".")

Foolish Tech Prediction 2

"Television won't be able to hold on to any market it captures after the first six months. People will soon get tired of staring at a plywood box every night."

Darryl Zanuck, executive at 20th Century Fox, 1946