what is the purpose of encoding?
Encoding takes some data, and turns it into something else. Sometimes encoding can be usued to make files smaller, security wise(safer). converting to a readable format, etc.
Let me re-frame the answer by KonardZuse. Encoding is basically converting your data from one form to the other for the purposes of standardization, speed, secrecy, security, or saving space by shrinking size. say i have a data 111 and i want to send it to you. i dont want anyone to interfere and learn the data. so i insert '0' after every '1'. then the data becomes "101010". Now just you and me know that i have added '0'. even if the data is hacked by someone else he can't find the information. there are still many other applications on encoding.
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