Serial
Transmission
1.
Data is sent bit by bit from one computer to another
2.
Each bit has its clock pulse rate.
3.
Bi-direction
4.
Serial Transmission has two subclasses Synchronous and Asynchronous
5.
Uses One
channel for a bit
Parallel
Transmission
1.
In Parallel Transmission, various bits are sent together simultaneously
with a single clock pulse.
2.
So multiple
channels for multiple bits
Key
Differences Between Serial And Parallel Transmission
1.
Serial transmission requires a single line to communicate and transfer
data whereas, parallel transmission
requires multiple lines.
2.
Serial transmission used for long distance communication whereas,
the parallel transmission used for shorter distance.
3.
Error and noise are least in serial as compared to parallel
transmission. Since one bit follows another in Serial Transmission whereas, in
Parallel Transmission multiple bits are sent together.
4.
Parallel transmission is
faster as the data
is transmitted using multiples lines whereas, in Serial transmission data flows
through a single wire.
5.
Serial Transmission is
full duplex as the
sender can send as well as receive the data whereas, Parallel Transmission is
half duplex since the data is either sent or received.
6.
Serial transmission cables are thinner, longer and economical in
comparison with the Parallel Transmission cables.
7.
Serial Transmission is reliable and straightforward whereas,
Parallel Transmission is unreliable and complicated.
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