QBASIC Modular Programming

• A modular programming is breaking down the design of a program into individual components (modules) that can be programmed and tested independently.
• A sub procedures is a block of statements that carries out a well-defined task.
• A function procedure is a type of procedure that returns a value whenever it is called.
• Arguments are the parameters passed to the procedure.
• Recursion is a programming technique that allows the programmer to express operations in terms of themselves.
• A global variable is declared inside a procedure, and is not accessible outside the procedure.
• A local variable is declared outside all procedures and is accessible in its scope.