Most video security cameras today are digital color CCD cameras or digital color CMOS cameras.  How do you know which to purchase?  Is one better than the other?  What does CCD and CMOS mean?   Read on to find out the answers to these questions and more.

First let’s describe a digital video security and surveillance system.  It normally consists of three components; the camera(s), the Digital Video Recorder, and a monitor(s).  The camera’s function in this system is to capture a video image created by light reflectance and transform it into an electronic image based on electrical impulses.  Both live and recorded material is played back by the DVR and may be seen by watching the monitor.