Apple announces new versions of the iPad and iPad mini

The iPad Air is 1 pound, as opposed to 1.4 pounds for its predecessor, and narrower.  (Marcio Jose Sanchez / Associated Press)

Apple Chief Executive Tim Cook holds the thinnest-yet iPad.  (Justin Sullivan / Getty Images)

At a London Apple store, an employee demonstrates the new iPad Air for a tech journalist.   (Facundo Arrizabalaga / Associated Press)

An attendee looks at the new Mac Pro during Tuesday’s Apple announcement at the Yerba Buena Center for the Arts in San Francisco.  (Justin Sullivan / Getty Images)

Checking out the products at the San Francisco Apple event.  (Marcio Jose Sanchez / Associated Press)

An Apple employee displays the new iPad mini.  (Marcio Jose Sanchez / AP)

Apple Chief Executive Tim Cook speaks during an Apple announcement at the Yerba Buena Center for the Arts on Tuesday in San Francisco. The tech giant announced its new iPad Air, a new iPad mini with Retina display, OS X Mavericks and highlighted its Mac Pro.  (Justin Sullivan / Getty Images)

Phil Schiller, Apple’s senior vice president of worldwide product marketing, introduces the iPad Air on Tuesday in San Francisco.  (Marcio Jose Sanchez / Associated Press)

Phil Schiller, Apple’s senior vice president of worldwide product marketing, demonstrates the thin profile of the new iPad Air compared with the previous version (at 0.3 inches thick, it’s 20% thinner).  (Justin Sullivan / Getty Images)

Eddy Cue, Apple’s senior vice president of Internet software and services, speaks about apps before a new product introduction Tuesday in San Francisco.  (Marcio Jose Sanchez / Associated Press)

Phil Schiller, Apple’s senior vice president of worldwide product marketing, introduces the new iPad Air.  (Justin Sullivan / Getty Images)