Difference between Serial and Parallel Transmission

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13-09-2020
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Question

Difference between Serial and Parallel Transmission

Computers Computer Network Digital Electronics

As we know that when there is data transfer between computers/laptops there could be two types of transmission of data i.e, Serial or Parallel. On the basis of different characteristics of both of these transmission we can distinguish between them.

Following are the important differences between Serial and Parallel Transmission −

Sr. No.	Key	Serial Transmission	Parallel Transmission
1	Definition	Serial Transmission is the type of transmission in which a single communication link is used to transfer the data from an end to another.	On other hand Parallel Transmission is the transmission in which multiple parallel links are used that transmit each bit of data simultaneously.
2	Bit transmission	In case of Serial Transmission only one bit is transferred at one clock pulse.	On other hand in case of Parallel Transmission, eight bits transferred at one clock pulse.
3	Cost Efficient	As single link is used in Serial Transmission, comparatively low cost is required for its implementation hence it is cost efficient.	On other hand multiple links need to be implemented in case of Parallel Transmission hence more cost is required and hence it is not cost efficient.
4	Performance	As single bit gets transmitted per clock in case of Serial Transmission, its performance is comparatively lower as compared to Parallel Transmission.	However on other hand as already mentioned that 8 bits get transferred per clock in case of Parallel transmission hence it is more efficient in performance.
5	Preference	As single bit gets transmitted per clock and only single link is implemented in Serial Transmission, it is more preferred for long distance transmission.	However on other hand as multiple bits get transferred and multiple links need to be implemented in case of Parallel Transmission, it is preferred only for short distance.
6	Complexity	Already mentioned due to single link implementation circuit having Serial Transmission is less complex as compared to that of Parallel Transmission.	However on other hand due to multiple link implementation circuit having Parallel Transmission is more complex as compared to that of Serial Transmission.

Nitin Sharma

Published on 09-Jun-2020 12:26:51

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