(Closed Circuit TV) A self-contained surveillance system comprising cameras, recorders and displays for monitoring activities in a store or company. Earlier analog CCTV systems used VHS tape; either a single VCR for each camera, a "quad VCR" that recorded four low-res images or a time-lapse recorder that handled multiple cameras. Subsequently, specialized digital video recorders (DVRs) with multiple analog inputs superseded VHS tape machines.
CCTV Cameras are very important in monitoring some places in particular to prevent theft, and for the businesses, control inventory and to maximize productivity. CCTV Security Cameras can are also beneficial in monitoring places which are too risky for people to watch themselves. Some examples are the exteriors of a certain building and other quiet areas.