While I can understand the meaning of encoding and decoding from Wikipedia, I cannot understand why they need every programming language? And if the answer is related to the ability to read data from an external source, such as a database, then why do many of them use different coding schemes?
Ex Python has ASCII encoding. By default, Java relies on the underlying OS. DB2 database has IBM-1252
Most people like to work with text.
However, computer storage can only work with bytes.
Encoding is the process of converting text to bytes.
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