In general, access control is any type of control that regulates the entrance of a person in a given object. For instance, the PIN code of your credit card is a type of everyday control that precedes the access to your bank account. The control can be done by a human being or it may be performed by a computerized machine using a suitable software program. This phenomenon is also widely used in everyday life to control the entrance and the exit of people in a certain building. Moreover, control of the access in a place is done in the workplace in order to check the punctuality of the workers.
Types of access control
As we already mentioned, there are various types of access control. The first type is the control found in the residential buildings in big cities. Every big building has installed a proper access system that prevents people who are non-residents of the building to enter in it without a suitable permission given by some of the residents. The second type of entrance control is the control used in big companies. The management of every company usually installs systems for controlling the access of their employees. Thus, the employer always has the needed information about the punctuality and reliability of every single worker. Moreover, the company may have additional systems for attendance control in various rooms of the building, which usually protect the important documents and money from potential robbers. Additional types of control of the access are ATMs, car locks, hotel locks and many more. The function of all of them is to secure confidential, serious and important information or equipment.
How does the access control work?
People who want to preserve and keep their important documents and possessions safe must immediately install some type of access control. The background operations of this process are pretty complex; nevertheless, the big picture that is presented in front of us is very simple. For instance, every single employee in a company has an identification card that helps them enter the building. The worker uses the card, registers his entrance and freely attends to his workspace. The background processes that happen behind this seemingly very easy action are far more complex. For example, every entrance is added to a log list automatically on a computer. The computer registers the attendance of the employee and it gives a command to the doors to be opened. After that, the doors are supposed to be closed and ready for another employee.
Computer access control
Access control is an action which is very often used for protection of the important files on computers. For instance, if the user has some files that need to be hidden from the rest of the users, they can easily limit the access to those files by giving a simple command. The access will be denied every time the user does not provide the correct user name and password. Thus, whenever you want to keep some things in the dark on your computer, you should immediately use control of the access to the documents in question. The process is easy, practical and very helpful.