What are the different types of locking devices?

Locking devices come in various types, including padlocks, deadbolts, and smart locks. Padlocks are portable and often used for securing gates or lockers, while deadbolts provide enhanced security for doors by requiring a key or thumb turn to unlock. Smart locks utilize electronic mechanisms and can be controlled via smartphones, offering keyless entry and remote access. Other types include combination locks and sliding bolt locks, each serving specific security needs.