- The question asks for the correct chronological order of the introduction and prevalence of different TV display technologies. - CRT (Cathode Ray Tube) This was the dominant technology for televisions and computer monitors for many decades, from the mid-20th century until the early 2000s. It is the oldest among the options. - Plasma Display Panel (PDP) Plasma technology emerged as a competitor to CRTs and early LCDs in the late 1990s and became popular for large-screen televisions in the early to mid-2000s. - LED (Light Emitting Diode) In the context of televisions replacing older technologies, LED typically refers to LCD TVs that use LED backlighting instead of traditional fluorescent (CCFL) backlighting. These "LED TVs" became widely available and popular in the late 2000s, offering better contrast, thinner profiles, and energy efficiency compared to CCFL-backlit LCDs and Plasma displays, eventually replacing both in the mass market. (True self-emissive LED displays like MicroLED are newer). - The chronological order of mass-market prevalence is therefore CRT, followed by Plasma (and early LCDs), followed by LED-backlit LCDs (often just marketed as "LED TVs").
Which of the following is the correct chronological order of TV display technologies?
Asked in UPSC CAPF 2013 · Topic: Future Trends in Information and Communication Technology (Augmented Reality (AR), Virtual Reality (VR), Mixed Reality (MR), and Metaverse Concepts)
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Answer: A. CRT, Plasma, LED
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