RS232 is a

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URSC ISRO Technical Assistant Electronics 20 August 2017 Official Paper
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  1. serial bus for data communication
  2. parallel bus for data communication
  3. MODEM
  4. interrupt controller

Answer (Detailed Solution Below)

Option 1 : serial bus for data communication
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Serial bus Communication:

  • It is a process of sending data sequentially over a computer bus is called as serial-bus communication.
  • The date is transferred/transmitted bit by bit.

          Ex RS232, RS449, RS485, RS422, RS429 etc

Serial communication is explained with the help of the following diagram:

F1 S.B Deepak 16.03.2020 D3

26 June 1

Parallel bus communication:

It is a process of sending data parallelly or transmitting in a byte or character on several data lines or buses at the same time.

This is explained as shown:

F1 S.B Deepak 16.03.2020 D4

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