Access control is particular restriction of entry to any physical, technical, or virtual space that ensure unauthorized access of persons or things. Access control is used in physical, technical, telecommunication, computer, data, and other relevant field. So it’s vary from type to type, place to place. In physical access control we mean, restriction on unauthorized entry into particular geographical location. Border guard, security guard of different building or locations can use access control methods both manually or technically. Manual access control methods include physical presence of both controller and enterer. But, modern technology invents so many finest instrument that ensure unauthorized access control into any geographical location. It is more reliable and easy to use. It will provide exact information of every entry and exit. Several devices like turn stile, mantrap, fingerprint, eye scanner, and voice detector used to geographical access control system.