What is the difference between a "point-and-shoot" and a "DSLR" camera?

What is the difference between a "point-and-shoot" and a "DSLR" camera?

Mark Comon (Vice President, Paul's Photo, Torrance, CA) gives expert video advice on: What is the difference between a "compact" and a "big zoom" digital camera?; Will a DSLR or a point-and-shoot camera give me higher quality photos? and more...

What's the difference between a point-and-shoot or compact-style digital and the SLR-style digital? The compact camera goes into your pocket, very simple to use, easy, very quick, easy, simple to use. The disadvantages are you're limited on your lens and you're limited on what the camera can do.The SLR-type camera can be just as easy to use but it gives you the ability to change all of the settings and change the lens. Takes a much better picture. It takes a better picture because remember we talked earlier? The imaging chip on this one is a little bit larger than a standard postage stamp where the imaging chip on your small cameras is a little bit smaller than the fingernail on your pinkie finger. Huge difference in the amount of picture quality and the amount of image you can capture. Pinkie finger. Postage stamp-sized image. Even though they're both ten megapixels the picture quality on the screen and the picture quality on your print will be miles apart.