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Question 94Asked in BPSC TRE 1.0 (2023) Computer Science Class 11-12

To display time in railway stations which digital circuit is used?

  1. ASeven-segment decoder
  2. BEight-segment encoder
  3. C8 : 3 multiplexer
  4. DMore than one of the above
  5. ENone of the above
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Correct answer: (A) Seven-segment decoder

Explanation

Digital clocks at stations show digits on seven-segment displays, which are driven by seven-segment (BCD-to-7-segment) decoders.

From BPSC TRE 1.0 (2023) Computer Science Class 11-12 — Previous Year Paper

This is question 94 of BPSC TRE 1.0 (2023) Computer Science Class 11-12 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.