What is Access Control?

Access control is a term taken from the linguistic world of security. In general, it means the execution of limitations and constrictions on whoever tries to occupy a certain protected property. Guarding an entrance of a person is also a practice of access control. There are many types of access control. Some of them are mentioned in this article. You, the reader of this article, will have several types of access control around you.

Access Control for Computers (Anti-Virus etc)
Nowadays, almost every computer user has a firewall or antivirus running on his computer, a popup blocker and many other programs. All of these are with access control functions. All of these programs guard us from intruders of sorts. They inspect everything trying to enter the computer and let it in or leave it out. Computers have complicated access control abilities. They ask for authentication and search for the digital signatures.

Access Control for Buildings/Landscapes
If you leave your computer chair for a moment and go out of room, you will pass through a door. This door is similar to the window close to it. This is the most famous method of access control in any basic home security.

Take a look at the door's handle. You twist it in order to open or close the door. It is the access control at its very centre. Without this handle the door would be swinging and wouldn't stop anyone from entering the room. Below this handle, there is a sort of lock and a keyhole. This keyhole will stop anyone trying to get through the door. Nowadays, there are different types of keypads and access control systems. In today's world the keys and locks are beginning to look different. With the passage of time, the key locks also got smarter. They can identify the patterns of your physical features, your voice, and fingerprint locks can read your fingerprints.

Huge Market for Access Control
Access control is a rapidly growing market and soon may manifest itself in such ways we cannot even imagine. Nowadays, security access control is a necessary component for businesses. There are many ways to create this security. Some companies hire a security guard to stand in the gateway. There are many security devices that prevent or permit access such as a turnstile. The best most effective access control systems are operated by computers.