What is Data Transmission Method ?

What is Data Transmission Method ?
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Answer : There are several ways to send data from source to destination. There are two ways of data transmission based on how many bits of data can be sent at a time. Namely: 1. Parallel data transmission : The transmission in which data is exchanged in parallel is called parallel data transmission. In this method data is sent through multiple cables. Normally 8 bit , 16 bit or 32 bit data can be transmitted in this transmission. This method is not cost effective as the distance is high and this method costs a lot of wires. The parallel method is used to send data to the printer. Serial Data Transmission : The transmission in which data or information is exchanged in 1 bit periodically is called serial data transmission. In this method, eight bits of data are sent simultaneously. If the distance from the source to the destination is greater then there is no other way but to use this method. When data is being transmitted from one computer to another, there must be an understanding between the two computers so that they can understand the beginning and end of the signal bit. If the recipient computer does not understand the beginning and end of the bit, it will not be able to recover data from that signal. The method used to coordinate different bits when sending this signal is called synchronization. Serial data transmission can be divided into three parts based on synchronization. E.g. asynchronous transmission synchronous transmission isacronus transmission.   
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