LEC25. INTRODUCTION TO CCTV

CCTV stands for

• Circuit-closed Television

• Closed-circuit Television

• Close-connected Television

• Circuit-connected Television

It is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors.

• CCTV

• CATV

• Cable TV

• Digital TV

TRUE OR FALSE: CCTV is an off-air TV system and it is not openly transmitted or publicly distributed

• TRUE

• FALSE

The first CCTV system was installed by ____________ at Test Stand VII in Peenemünde, Germany in 1942, for observing the launch of V-2 rockets.

• Sputnik

• ISSR

• Siemens AG

• NASA

The noted German engineer _______________ was responsible for the technological design and installation of the system.

• Thomas Alva Edison

• NIkola Tesla

• Walter Bruch

• William O'Brien

In the U.S. the first commercial closed-circuit television system became available in 1949, called __________.

• Vericon

• Verizon

• iPhone

• CD-R King

During the _______, video surveillance began to spread across the country specifically targeting public areas.

• 1970s

• 1980s

• 1990s

• 2000s

During the 1990s, _______________, which allowed for several cameras at once to record, and introduced time lapse and motion only recording.

• analog multiplexing

• digital multiplexing

• diplexer

• multiplexer

By adding a ______________, we only need one monitor to view four cameras and all four camera images are recorded.

• multiplexer

• diplexer

• VCR

• monitor