CH.7 - EXERCISES.pdf

1. A list of instructions – commands that are grouped under a common name is called a procedure.
2. The main advantage of a procedure is that we can call it by its name at any point of the program execution without having to write again its full set of commands.
3. To create a public procedure, we should define it inside the procedure definition.
4. The definition of the procedure begins with to command followed by its name and finishes with end command.
5. The name of a procedure must not contain any spaces.
6. There are 3 categories of procedures: regular, parametric and super.
7. The regular procedures do not use any parameters as input.
8. Parametric procedures use symbolic names to represent their inputs that are called parameters or arguments.
9. A parametric procedure is possible to use more than one parameter as input.
10. A variable is a symbolic name which is given to a location of computer memory in which we can store a value.
11. The value of a variable can be changed during the program execution.
12. When we want to read the value of a variable, we should place in front of its name the colon (:) symbol.
13. When we want to assign a new value to a variable, we should place in front of its name the make command.
14. By using the make command, we can assign a new value to a variable.
15. The super procedures are a category of procedures that call other sub-procedures.