The purpose of an access control system is to manage and regulate entry to a physical or digital space. It ensures that only authorized individuals are granted access while preventing unauthorized entry. By employing various authentication methods such as keycards, biometrics, or passwords, access control systems protect assets, maintain security, and safeguard sensitive information. They enable organizations to control and monitor user permissions, restricting access to specific areas or data based on individual roles or clearance levels. Access control systems enhance overall safety, prevent security breaches, deter theft or vandalism, and maintain data integrity, thereby safeguarding both physical and digital resources.