Keyed locks are mechanical devices that secure doors, cabinets, and other entry points. They operate using a metal key that fits into a specific slot, allowing the user to turn the lock mechanism. The design of the lock includes pins that align when the correct key is inserted, enabling the lock to open. These locks come in various types, including deadbolts and padlocks, each serving different security needs. Keyed locks are commonly used in homes and businesses to protect valuables and ensure privacy. Their simplicity and effectiveness make them a popular choice for many security applications.