Traditionally there were analog based security camera systems and these served well as a home security surveillance device. They used tape drives to store the images and multiplexers to allow several cameras to be monitored at the same time. However, technology has moved on and IP based cameras provide better quality images, ease of storage and ease of viewing images. Learn why you need to look at CCTV IP Cameras to enhance your home security.
Source:CCTV IP Cameras - Do I Need One For My Home Security?