Homework Help: Questions and Answers: What device served as the inner workings of television sets until flat-screen technology became standard in the 2000s?
A. kinescope
B. DBS
C. cathode ray tube
D. coaxial cable
Answer
First, let’s understand the question: We need to identify the main display technology used in TVs before flat screens became common. This would be the technology used in traditional “box” TVs from the 1950s through the 1990s.
Given Options: Step-by-step Answering
a) Kinescope
- Kinescope refers to a method of recording television programs by filming the screen of a television monitor. It is not a device used in television sets but rather a way to record them.
b) DBS:
- DBS stands for Direct Broadcast Satellite, which is a method of transmitting satellite television. It is related to television broadcasting, not the internal workings of the TV set.
c) Cathode Ray Tube (CRT)
- The cathode ray tube (CRT) is a technology used in older television sets. It consists of an electron gun that beams electrons onto a phosphorescent screen to create images. This was the dominant technology for television sets before flat-screen technology became the standard.
d) Coaxial Cable
- Coaxial cable is a type of electrical cable used for transmitting video, audio, and data. It is used for connecting devices but is not part of the internal workings of the television set itself.
Final Answer:
Based on the above analysis, the correct answer is:
C. Cathode Ray Tube (CRT)
CRT was indeed the technology that powered traditional TV sets until flat-screen technologies (LCD, Plasma, LED) became mainstream in the 2000s.
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