How does a "keypad entry" system function?

A keypad entry system functions by requiring users to enter a specific numeric code to gain access. This method is straightforward and relies on a simple interface where users input their designated access code directly into the keypad. Once the correct code is entered, the system verifies it and grants access if it matches the pre-programmed credentials.

Keypad entry systems are popular because they offer an effective means of control without the need for physical keys or cards, reducing the risk of lost or stolen items. Additionally, they enable easy changes to access codes, enhancing security since codes can be frequently updated as needed. This system is widely used in various environments, from residential settings to commercial facilities, where controlled access is crucial.

Other methods listed, such as swiping a card, verbal identification, or typing a password on a computer, do not pertain to a keypad entry system, as they rely on different forms of authentication. Each of those alternatives presents its own security and operational considerations distinct from the numeric code entry method.