Is The EBCDIC code is the most widely used coding system?

No, EBCDIC (Extended Binary Coded Decimal Interchange Code) is not the most widely used coding system. The most prevalent character encoding today is ASCII (American Standard Code for Information Interchange) and its extended versions, as well as Unicode, which supports a vast range of characters from different languages. EBCDIC is primarily used in mainframe environments, particularly associated with IBM systems, but its usage is much more limited compared to ASCII and Unicode.