CRT in the context of security equipment stands for

Cathode Ray Tube

Central Research Transponder

Common Repeater Timing

None of the above

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UPSC CISF-AC-EXE – 2024

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CRT stands for Cathode Ray Tube. This technology was historically used in display screens, including monitors for security camera systems (CCTV) and displays in X-ray baggage scanners.

CRT is a display technology formerly common in various electronic equipment, including security monitoring systems.

While CRT displays have largely been replaced by newer technologies like LCD and LED in modern security equipment, the term and the underlying technology were fundamental in the development of early electronic displays for security applications.

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