keypad

noun

1. a separate section on some computer keyboards, grouping together numeric keys and those for mathematical or other special functions in an arrangement like that of a calculator.
2. a panel similarly keyed and used in conjunction with a television set, electronic banking machine, or other electronic device.

noun

1. a small keyboard with push buttons, as on a pocket calculator, remote control unit for a television, etc
2. computing a data input device consisting of a limited number of keys, each with nominated functions