A Tablet PC is a notebook
or slate-shaped mobile computer, first introduced by Pen
Computing in the early 90s with their Pen Go Tablet Computer and popularized by
Microsoft.
Its touch screen
or graphics tablet/screen hybrid technology
allows the user to operate the computer with a stylus or digital pen, or a fingertip, instead of a keyboard
or mouse.

The form factor offers a more mobile way to interact with a computer. Tablet
PCs are often used where normal notebooks are impractical or unwieldy, or do
not provide the needed functionality. The foremost tablet PC was introduced by Microsoft
inc. they had offered Computers powered by the Windows XP Tablet PC Edition
operating system, and equipped with a sensitive screen designed to interact
with a complementary pen. Tablet PCs are fully-functional laptop PCs and more.
You can use the pen directly on the screen just as you would a mouse to do
things like select, drag, and open files; or in place of a keyboard to
handwrite notes and communication. Unlike a touch screen, the Tablet PC screen
only receives information from a special pen. It will not take information from
your finger or your shirt sleeve so you can rest your wrist on the screen and
write naturally.

By interacting directly with the screen, rather than with a mouse and
keyboard, the PC becomes more comfortable and easy to use. There is no need to
find a flat space on which to use your PC, nor does a vertical screen become a
dividing wall between you and the person with you whom you are meeting. What's
more, a Tablet PC can even be used while standing up, which is perfect for
professionals on the move such as doctors, foremen, and sales managers.

Windows XP Tablet PC Edition 2005 includes all of the features and
functionality of Windows XP
Professional and Windows XP
Service Pack 2. Tablet PCs do not run Windows CE or Windows XP
Embedded.

A number of manufacturers produce Tablet PC
models that differ in size, processing speed, design, etc. to meet
anyone's need. Three different styles of Tablet PCs are available:

The convertible model Tablet PC
which has an attached keyboard and looks much like a conventional laptop PC.
But you can also rotate the screen 180 degrees and lay it flat over the
keyboard for a more comfortable reading and writing experience.

The slate model Tablet PC is
designed to be slim and ultra-light without the weight and size of a permanent
keyboard. Some models come with a detachable keyboard, and all include
innovative docking solutions that offer access to a full-size monitor,
keyboard, and mouse.

The rugged model Tablet PC is
a tough mobile computer with an industrial-strength shell and shock-mounted
hard drive. Rugged models are ideal for people who use their PC in a
cons