What Is The Difference Between Decoder And Encoder?


9 Answers

Anonymous Profile
Anonymous answered
Encoders and decoders are essentially the opposites of each other. An encoder is a device or entity that will encode information in a particular way; compressing, converting or securing it into a different format. A decoder is the device or entity that will remove the information from its previously encoded state and return it to its original format.

Encoding is a popular way of securing data and information; changing the format so that it can only be read by someone with the appropriate decoding equipment or software. The encoding process essentially scrambles all the pieces of the data up and they are then put back together at the other end by the decoder.

For example, people who are sending private information through email have the option to encode the data before sending. This means that if this email was to be read by someone other than the intended target, they will not be able to read it. The same kind of method can be used when transporting files on USB memory pens and other storage devices.

The process of encoding and decoding is used for audio and video content as well. Encoding is particular useful with this form of media because it can compress the size of an audio or video file. This is helpful when storing or sending the information because it consumes less of the memory space on the storage memory.

The role of encoding and decoding with audio and video files is also useful with things that home theatre entertainment systems. Here the encoder will take the multiple channels of audio that are transmitted and condense them into one simple digital stream. This stream is then sent to the decoder where it changed back into the original multiple channel format.
Anonymous Profile
Anonymous answered
An encoder is a circuit that accepts many inputs and generates the output in a coded form.
Where as
a decoder is a circuit with no data input,but accepts only the control inputs and generates many outputs.
Anonymous Profile
Anonymous answered
Encoder is a device which has 2 to the power 'n' inputs and 'n' no. Of output.It means if there are 8 inputs lines in encoder then there will be 3 outputs lines.but in decoder there is reverse process ,i.e. There are 'n' no. Of inputs lines and 2 to the power 'n' outputs lines .
Anonymous Profile
Anonymous answered
Encoder is a circuit with multiple input with generates a unic address at its output that is it convert is an active input signal to a coaded output signal. If only 1 input is activated at a time. Then the encoading state forwareded and can be accomplished with gates. How ever if more them one input is active other same time a priority must be stablish and such a unit is called priority encoader.
EXP. Decimal to b, c, d encoader and octal to binary.

Simple way to say -- encoader convert to binary language and decoader decode to simple language.
Michael Lai Profile
Michael Lai answered
Encoding is the process of converting the original message into a coded one, whereas decoding is the process of taking a coded message and converting it back to the original message. The process can be an algorithm that is applied for decoding and encoding, or they could be different. The words cipher and decipher can be applied in the same way.
amber Jhon Profile
amber Jhon answered
An encoder is the system which is used to put something into code to make it unreadable so that some message can be sent to a party and no other party can read the message. On the other hand, a Decoder is the system which is used to decode or translate the code and make the message again readable. Both encoder and decoder are used where encoding language is applied. For example, if a word TRANSLATION is encoded then it can be written in various forms like NOITALSNART.
Daisy Sarma Profile
Daisy Sarma answered
An encoder is a device that is used to convert a signal or certain data into code. This kind of conversion is done for a variety of reasons, the most common being data compression. Other reasons for using encoders include data encryption for making the data secure and translating data from one code to another new or existing code. Encoders may be analog or digital devices. In analog devices, the encoding is done using analog circuitry, while in digital encoders the encoding is done using program algorithms. Some examples of encoders are multiplexers, compressors, and linear and rotary encoders.    A decoder, on the other hand, functions the reverse of an encoder. It is a device that is used to decode an encoded signal or data. It does this to help retrieve the data that was encoded in the first place. Both encoders and decoders usually function in tandem, i.e., an application that uses an encoder would ideally also require a decoder. There are different types of decoders, e.g. Demultiplexers.

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