Formal Parameter - Identified in the sub-program definition, Actual Parameter - Data items passed into subprogram, Local Variable - Only accessed in sub-program where it was declared, Global Variable - Recognised and changed by any code in program, Function - Returns a value, Procedure - Carries out a task, Substrings - word[0:2], Character to ASCII - ord(), ASCII to Character - chr(), Modulus - 12 % 7,

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