In serial communication, the all data bits are transmitted over a common channel thus proper spacing is required to be maintained in order to avoid interference.Whenever there exists a need for system up-gradation then upgrading a system that uses serial communication is quite an easy task as compared to upgrading a parallel communication system.While multiple links in case of parallel communication allows data transmission at comparatively faster rate. Due to the presence of single communication link the speed of data transmission is slow.Key Differences Between Serial and Parallel Communication And this is the reason why parallel communication is not suitable for long distance transmission, because connecting multiple lines to large distances is very difficult and expensive. This leads to a faster communication between the sender and receiver.Д«ut for connecting multiple lines between sender and receiver multiple connecting unit are to be present between a pair of sender and receiver. And so rather following a sequential data transmission, simultaneous transmission of data is allowed. Here, as we can see that for the transmission of 8-bit of data, 8 separate communication links are utilized. The figure below shows the transmission of 8 byte data using parallel communication technique: Here, despite using a single channel between sender and receiver, various links are used and each bit of data is transmitted separately over all the communication link. In parallel communication the various data bits are simultaneously transmitted using multiple communication links between sender and receiver. But as only a single data bit is transmitted per clock pulse thus the transmission of data is a quiet time taking process. So, it can be connected between two points that are separated at a large distance with respect to each other. It is highly suitable for long distance signal transmission as only a single wire or bus is used. The figure below shows the serial data transmission:

Thereby allowing sequential transfer rather than simultaneous transfer. Basically it does not allow simultaneous transmission of data because only a single channel is utilized. In serial communication the data bits are transmitted serially over a common communication link one after the other. Content: Serial Vs Parallel Communication In this article we will discuss some other factors that differentiates the two. Due to only a single communication link serial communication is comparatively more cost effective than parallel communication.

Onkyo rz serial communication protocol