National+4+Input+-+Process+-+Output

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 * Input** What information will the program require?


 * Process:** What does the program need to do to change the input or produce the output.


 * Output:** What type of information is the user expecting back from the program.


 * Tasks**

Create an input, process and output diagram like the one below for the following programs.

**Program 1 - Controller Sales** A game shop wants to know how much money they make in one day on xbox controllers. The user enters the amount of controllers they have sold in one day. The program multiplies the amount of controllers they have sold by how much one controller costs. The program then shows the users the total amount they have earned. **Program 2 - Coffee Card** A cafe has started a promotion where if a customer spends more than £10 then they get a free coffee card.A program has been created to decide whether a customer has been awarded this card. The user enters the amount the customer has spent. The program then decides if the user has spent more than £10. The program then displays the decision. **Program 3 - Caldulates Room Volume** An architect has asked to have a program that finds the volume of a room.The user will enter the data needed into the program and the program will display the volume this at the end. Write the input, process and output diagram for this. You will need to know how to find the volume of a room to complete this exercise.