Jobs, who returned at the head of the company last year after a liver transplant, users expect to sell these products, with which they have failed in recent years, other technology companies.

The iPad is the biggest launch of Apple since the iPhone appeared three years ago, and rivals the phone as the most anticipated product in the history of the company.

After months of speculation on the Internet and among investors, Jobs took the stage in a crowded exhibition in San Francisco, and its known ability showman started presenting the details of device characteristics.

The iPad is a touch pad on the screen as big as the real life, lets you surf the Internet, a calendar and agenda, and is "amazing" to play films and television programs, he said.

Its thickness is half inch and 9.7 inch screen and its battery lasts 10 hours, a period that extends to a month in standby mode.

Despite all the hype, analysts do not believe that is necessarily easy to sell. Yet to see the interest of users for a device that is halfway between a smartphone and a laptop, although there have been devices such as electronic readers which have driven the electronics market.

Going down iPod sales, Apple is looking for another engine of growth, and hopes that this "tablet" is.