An electronic keypad is a device that allows users to input information using a set of buttons or keys. These keypads are commonly found in security systems, such as door locks and alarm panels, where they enable users to enter a code to gain access. They can also be used in various applications, including ATMs and point-of-sale systems, providing a convenient way to enter data. Electronic keypads can be either standalone devices or integrated into larger systems. They often feature a numeric layout, but some may include additional function keys. Many modern keypads use technologies like membrane switches or capacitive touch to enhance durability and ease of use.