Keypad

==== A **keypad** is a set of buttons containing digits and other symbols but not a complete set of alphabetical letters. If it mostly contains numbers then it is called a **numeric keypad**. Numeric keypads are found on devices such as a calculators, combination locks, telephones and automativ cash machines. It is the most common keypad. A computer keyboard usually contains a small numeric keypad with a calculator-style arrangement of buttons to allow efficient entry of numbers.

Numeric keypads usually operate in two modes: when Num Lock (button which changes between the two modes) is off, keys 8, 6, 2, 4 act like the arrow keys and 7, 9, 3, 1 act like Home, PgUp, PgDn and End; when Num Lock is on, the keys produce their corresponding numbers. These, however, are not the same as the ones at the top of the keyboard, as they do not produce symbols when combined with the Alt-key.