Explain Synchronous and Asynchronous Transmission with examples. Mention advantages, disadvantages and difference between them.

Synchronous Transmission :

• In synchronous transmission data is sent in form of blocks or frames.

• Synchronous transmission is the full-duplex type transmission.

• Synchronization between sender and receiver is compulsory.

• There is no gap present between data.

• Examples : Chat rooms, telephonic conversations, video conferencing.

Advantages of Synchronous Transmission :

• It is more efficient foe transmitting large volumes of data.

• It has higher speed than asynchronous transmission.

• It has less possibility of errors.

• It is used for high speed communication.

Disadvantages of Synchronous Transmission :

• If an error occurs, the complete set of data is lost.

• The characters are transferred at irregular intervals.

• Process is more complex.

• Not cost effective because hardware are more expensive.

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Asynchronous Transmission :

• In asynchronous Transmission data is sent in form of byte or character.

• This transmission is the half-duplex type transmission.

• In this transmission start bits and stop bits are added with data.

• It does not require synchronization.

• Examples : Emails, Forums, Letters.

Advantages of Asynchronous Transmission :

• If error occurs in a character then other sequence of character are not affected.

• It does not require synchronization.

• It is cost effective.

• It is simple to implement.

Disadvantages of Asynchronous Transmission :

• Speed of transmission is limited.

• It has higher overhead.

• It is not efficient for large volumes of data.

• Data is lost in this transmission.

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Difference between Synchronous and Asynchronous Transmission :