What is the "Sony Playstation Portable" (PSP)?

What is the "Sony Playstation Portable" (PSP)?

The Sony Playstation Portable is basically your hand-held miniature video game system that also runs movies, though in a format that s not compatible with any other medium. It's not like you can buy a movie and play it on your DVD or on your Playstation 3, or anything like that. They only play on the system. They have beautiful movies and some impressive graphics. It uses a little nub type joystick controller that you move characters around with and then it's got the set of control buttons. So it's basically a scaled down simplified video game system, shrinked down to fit in your hand.