Keyboards (continued...)                                

    Any keyboard that you buy today is going to contain the following keys:

ESC
The ESC key is located on the upper left corner of the keyboard. It allows the user to break out of the current process. It will close pop-up windows, some programs, and may back you out of an operation that you've changed your mind about.

F1 - F12
There are 12 function keys across the top of the keyboard. Software companies can program the individual keys to perform different functions in each application program.

Print Screen
The print screen key is to the right of the function keys. In DOS and Windows 3.x, the print screen key would send the data (text) on the screen to the printer. In Win9x, the key will send a graphical picture of the screens contents to the clipboard and it can be viewed and manipulated in any graphic program that reads .bmp files.

Scroll Lock
Beside the Print Screen key is the Scroll Lock key. In some programs, this key will lock the cursor in position and allow you to move the screen view elsewhere.

Pause
The Pause key is in the upper right corner of the keyboard. This key will halt a function or process until another key is pressed.

Shift
There is a shift key on either side of the keyboard. Pressing a key while holding down the Shift key, will produce a capital or uppercase letter or the character displayed in the upper half of the key.

Caps Lock
This key is on the left side of the keyboard. It's a toggle key  (on or off) that will produce all uppercase letters when using the alphabet keys.