Access control is a system which enables an influence toward control access on the way to areas in addition to resources in a known physical facility or computer-based information system. An access control system, surrounded by the field of physical security, is usually seen as the second layer in the safety of a physical structure.
Access control is, in reality, an everyday occurrence. A lock on a car door is basically a form of access control. A PIN on an ATM system at a bank is an additional means of access control. A bouncer position in front of a night club is perhaps a more prehistoric mode of access control (given the evident lack of information technology concerned). The possession of access control is of major significance at what time persons seek toward secure significant, confidential, or responsive information as well as equipment.
