The chief executive of Apple, Timothy D. Cook, has a prediction: the day will come when tablet devices like the Apple iPad outsell traditional personal computers.

His forecast has backing from a growing number of analysts and veteran technology industry executives, who contend that the torrid growth rates of the iPad, combined with tablet competition from the likes of Amazon.com and Microsoft, make a changing of the guard a question of when, not if.

Tablet sales are likely to get another jolt this week when Apple introduces its newest version of the iPad, which is expected to have a higher resolution screen. With past iterations of the iPad and iPhone, Apple has made an art of refining the devices with better screens, faster processors and speedier network connections, as well as other bells and whistles — steadily broadening their audiences.

As New iPad Debut Nears, Some See Decline of PCs – NYTimes.com.