Access control is not even close to being a single technique. It’s an extensive variety of techniques and methods at which controller has been put forth over a unit with the capability of responding in some fashion. This collection of techniques comes in different forms, for example construction locks, ATM machines, including PIN variety of credit cards or mobile phones, car locks, automated fingerprint locks, remote locks and eyecontact radiation locks. Nevertheless, the most excessively used type of access controller is the doorway access control. http://shineacs.com/