Question

The purpose of a start bit in RS232 serial communication protocol is:
1. To synchronize receiver for receiving every byte
2. To synchronize receiver for receiving a sequence of bytes
3. As a parity bit
4. To synchronize receiver for receiving the last byte

Answer 1

Correct Answer - Option 2 : To synchronize receiver for receiving a sequence of bytes

Concept:-

⇒ What is serial communication?

• In telecommunication, the process of sending data sequentially over a computer bus is called as serial communication, which means data will be transmitted bit by bit.

⇒ What is purpose of start bit:-

• Start bit is use to original receiver to receiver every byte i. e bigining of frame.

⇒ What is porpuse of stop bit:-

• It is use to signal receiver the end of frame.

Note:- Parity bit is used in serial communication to data transmission error.