The Tablet PC is a notebook (laptop) without a keyboard. It's a full-scale PC with a rotating hard disk. If you take any of today's very thin and light, high-end notebooks, rip off the keyboard, flip over the screen and add a digitizer, you've got what is basically a Tablet PC.
The Tablet PC:
|Combines the simplicity of paper with the power of the PC
||Combines the rich features of a notebook with the simplicity of a pen
||A natural form of computing
||An adaptable, ergonomic form factor||an 8.5x11 tablet that weighs around 2.25 pounds|