cctvTechnology is changing the way we live. It has revolutionized all the fields present. One of the most important concerns of this generation is security. We have security for everything. We use security to protect ourselves and our things. Technology has changed the field of security too. In the beginning, security meant just guards who would stand and monitor the surroundings and protect you. Now with the improvements in technology, we have security cameras which are more cheap and efficient than people. A CCTV Camera or surveillance camera is cheap to install and they are highly efficient. We can also hide the cameras and keep so that no one will know that we are watching. All the cameras will give their signals to a single control room where there are many televisions to produce the output. One person can sit there and watch the surroundings. With the reduction in the available man power these days this seems to be the best alternative. Covert Cameras are also like CCTV but they are more advanced and smaller in size. They can be fixed in almost every place imaginable without people knowing. But these are known to infringe the privacy of people. Moreover, the Wireless CCTV available these days make use of the best technologies available these days.