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2. Closed-circuit television camera - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television...

   These cameras do not require a video capture card because they work using a digital signal which can be saved directly to a computer. The signal is compressed 5:1, but DVD quality can be achieved with more compression (MPEG-2 is standard for DVD-video, and has a higher compression ratio than 5:1, with a slightly lower video quality than 5:1 at best, and is adjustable for the amount of space to ...

3. Closed-circuit television - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television

   In September 1968, Olean, New York, was the first city in the United States to install CCTV video cameras along its main business street in an effort to fight crime. [25] Marie Van Brittan Brown received a patent for the design of a CCTV-based home security system in 1969.

4. Wireless security camera - Wikipedia

   en.wikipedia.org/wiki/Wireless_security_camera

   Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio.

5. Surveillance - Wikipedia

   en.wikipedia.org/wiki/Surveillance

   The vast majority of computer surveillance involves the monitoring of data and traffic on the Internet. [9] In the United States for example, under the Communications Assistance For Law Enforcement Act, all phone calls and broadband Internet traffic (emails, web traffic, instant messaging, etc.) are required to be available for unimpeded real-time monitoring by federal law enforcement agencies.

6. Home security - Wikipedia

   en.wikipedia.org/wiki/Home_security

   With only 17% of homes being equipped with home security systems, many burglars are attracted to homes lacking a system. 95% of break-ins require some type of forceful entry (breaking a window, lock picking, kicking in doors). Some common tools used for break-ins are pliers, screwdrivers, and hammers. This makes it hard to see break-ins coming ...

7. Qube (cable television) - Wikipedia

   en.wikipedia.org/wiki/Qube_(cable_television)

   Qube (stylized QUBE) was an experimental two-way, multi-programmed cable television system that played a significant role in the history of American interactive television. It was launched in Columbus, Ohio, on 1 December 1977. [1]