Synchronous Vs. Asynchronous Transmission: Explore the difference between Synchronous and Asynchronous Transmission
Synchronous and Asynchronous Transmission are types of serial data transmission methods. Both transmission methods are based on clock pulses that are used for synchronization. Let’s explore some major differences between synchronous and asynchronous transmission.
What is Synchronous Transmission?
Synchronous data transmission is a type of data transfer that carries a frequent stream of data in the form of signals along with timing signals generated by an electric clock that ensures the synchronization of the sender and receiver. Synchronous transmission allows data to be transmitted in fixed intervals in the form of frames or blocks.
What is Asynchronous Transmission?
Asynchronous transmission is a type of data transmission which works on start and stop bits. In Asynchronous transmission, each character contains its start and stop bit and irregular interval of time between them.
Difference Between Synchronous and Asynchronous Transmission
| S.No. | Synchronous | Asynchronous |
| 1. | In Synchronous transmission a common clock is shared by the transmitter and receiver to achieve synchronisation while data transmission. | In Asynchronous transmission each character contains its own start and stop bits. |
| 2. | In Synchronous transmission data is sent in frames or blocks. | In Asynchronous transmission data is sent in the form of bytes or characters. |
| 3. | Synchronous transmission is faster, as a common clock is shared by the sender and receiver. | Asynchronous transmission is slower as each character has its own start and stop bit. |
| 4. | Synchronous transmission is costlier. | Asynchronous transmission is cheaper. |
| 5. | It is easy to design. | It is complex. |
| 6. | In synchronous transmission there is no gap between the data as they share a common clock. | In asynchronous transmission there is a gap between the data due to the start and stop bit feature. |
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