What is an "access control" system in security?

An "access control" system in security is fundamentally designed to manage and regulate who can gain entry to or exit from a facility at specific times. This system ensures that only authorized individuals can access certain areas, thereby enhancing the overall security of the premises.

Access control typically involves various components such as keycards, biometric scanners, or security personnel who verify identity and grant access based on predetermined criteria. This systematic regulation is crucial for protecting sensitive areas within a facility, such as server rooms, financial offices, or high-security zones, thereby preventing unauthorized access and potential security breaches.

The other options do not accurately reflect the primary function of an access control system. Monitoring employee performance, managing inventory, or tracking safety drills, while important, serve different operational purposes and do not specifically pertain to controlling access within a security context.