SYNCHRONOUS DATA TRANSMISSION:
The type of transmission in which there is a continuous stream of data signals coupled with time-based signals for an efficient data transfer is called Synchronous Data transmission.
This transmission is done to ensure that the transmitters, as well as the receiver, are in coordination with each other.
ASYNCHRONOUS DATA TRANSMISSION:
The type of transmission in which there is a voluntary start bit is sent to mark the beginning of a data transfer is called Asynchronous data transmission. In this transmission, the whole process of data transfer is governed by the start and stop bits.
Difference between Synchronous and Asynchronous transmission
|Basis||SYNCHRONOUS DATA TRANSMISSION||ASYNCHRONOUS DATA TRANSMISSION|
|Basic function||In Synchronous data transmission, the data is sent in the form of PACKETS or FRAMES||In this data transmission, the data is sent ONE CHARACTER or A BYTE at a time.|
|Speed of Transmission||Synchronous data transmission is FASTER as compared to Asynchronous data transmission||Asynchronous data transmission is comparatively slower than Synchronous data transmission|
|Time interval||a CONSTANT time interval is followed||There is no time interval to be followed.|
|Cost||It is very EXPENSIVE||Asynchronous data transmission is quite ECONOMICAL.|
|Common examples||Chat rooms and telephonic conversations||E-mails and Letters|