ISRO Computer Science (CSE) 2013 - Question 19

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What is the maximum number of characters (7 bits + parity) that can be transmitted in a second on a 19.2 Kbps line. This asynchronous transmission requires 1 start bit and 1 stop bit.

  • A. 192
  • B. 240
  • C. 1920
  • D. 1966

Answer: C. 1920

Explanation: Total bits per char = 1 (start) + 7 (data) + 1 (parity) + 1 (stop) = 10 bits. Rate = 19200 / 10 = 1920 char/sec.

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