Everybody who walks into a supermarket is familiar with closed-circuit television. Step through the doors, look up and wave, and ta-dah! You’re on television! If you’ve ever wanted to learn more about this beneficial technology, you’ve come to the right place.CCTV was first used in Germany during World War II for observing the launch of V-2 rockets. The systems are still used today at launch sites to record flights and to detect causes of malfunction. However, according to Wikipedia, the technology first gained use in the security sector when the city of Olean, New York installed a CCTV network on its main business street. Other banks and stores (including your local supermarket) soon followed suit. Read the rest of this entry »