CCTV - CLOSED CIRCUIT TELEVISION. CCTV is having an open aperture. different cctvs:1.DOME 2.BULLET 3.PTZ Pan Tilt and zoom camera 4.Day/Night cctv camera 5.Infrared/night vision cctv camera 6.Network/IP cctv camera 7.Wireless cctv 8.High definition(HD) cctv APPLICATIONS AND ADVANTAGES CCTV camera remains the best utilization use for surveillance purposes. By using different types camera for different purpose we can reduce crimes and disorders to make a positive difference to our lives of our communities.