1. Output “Funds not available”
Thinking Logically
Identify the points in a solution where a decision has to be taken
Identify the points in this program where a decision has to be taken. Give an example of code (language of your choice) that would implement this Flow Diagram.
While Pin= False: Pin = input(“Please enter Pin”)
Check Pin
Pin = False
Else:
amount = input(“Enter amount:”)
Pin = True
…… etc
Is PIN correct
Input Card
Start
Stop
Input PIN
Enter amount
Check PIN
Check funds available
Are funds available?
Activate speaker
Output cash
Print receipt
Update balance NO
YES
Output confirmation
Output “Funds not available”
YES

2. Thinking Logically
Identify the points in a solution where a decision has to be taken
In a unit 2 exam, you will need to be able to identify the points in a pseudocoded problem where a decision has to be taken. Throughout the course you have been programming to prepare for this.
In this activity you need to choose at least 3 programs you have written.
Using the table on the following slide identify the various points in your solutions where your program had to make a decision.
Make sure to choose a variety of different programs

3. Decision points in solution
Thinking Logically
Identify the points in a solution where a decision has to be taken
Title of program
What does it do?
Decision points in solution
National_lottery_sim
Program which simulates the national lottery draw by producing 6 random numbers when ENTER is pressed
DECISION POINT 1: Has ENTER been pressed
DECISION POINT 2: Has the random generated number already been picked
DECISION POINT 3: Have 6 unique numbers been drawn
Card Machine Balance
Program that checks a balance in a account and allows a customer to withdraw money from that amount
Decision 1: Is amount smaller than 250?
Greatest Number
Program that allows two numbers to be picked and displays the larger one
Decision 1: Is number 1 greater than number 2?
Water Temperature
Allows a temperature to be entered and shows whether the water is boiling, frozen or normal
Decision 1 : Is the temperature less than zero?
Decision 2: Is the temperature more than a hundred?

4. Output “Funds not available”
Thinking Logically
Determine the logical conditions that affect the outcome of a decision
Determine the various logical conditions that affect the outcome of the decision points in this program.
Is PIN correct
Input Card
Start
Stop
Input PIN
Enter amount
Check PIN
Check funds available
Are funds available?
Activate speaker
Output cash
Print receipt
Update balance NO
YES
Output confirmation
Output “Funds not available”

5. Thinking Logically
Determine the logical conditions that affect the outcome of a decision
In a unit 2 exam, you will need to be able to determine the various logical conditions that affect the outcome of a decision based on pseudocoded examples. Throughout the course you have been programming to prepare for this.
In this activity you need to choose at least 3 programs you have written.
Using the table on the following slide identify the various logical conditions that affect the outcome of decisions in your program.
Make sure to choose a variety of different programs

6. Thinking Logically
Determine the logical conditions that affect the outcome of a decision
Title of program
What does it do?
Logical conditions
National_lottery_sim
Program which simulates the national lottery draw by producing 6 random numbers when ENTER is pressed
IF (ENTER has been pressed) THEN…
IF (New_num_generated == Any previous selected numbers) THEN…
REPEAT UNTIL (Total_unique_num_generated = 6)…

7. Output “Funds not available”
Thinking Logically
Determine how decisions affect flow through a program
Explain how the decisions being made in this program would affect the flow through the program.
If the Pin is incorrect multiple times then the program will take longer to finish, and will keep going in circles until the Pin is correct. If the amount is also wrong it will do the same thing, display an error and circle back around so that it can be entered again. The program would only be most efficient in time-wise if both the Pin and the Amount were valid.
Is PIN correct
Input Card
Start
Stop
Input PIN
Enter amount
Check PIN
Check funds available
Are funds available?
Activate speaker
Output cash
Print receipt
Update balance NO
YES
Output confirmation
Output “Funds not available”

8. Thinking Logically Exam style question
Procedure take from stack(old,item)
If pointer = minimum Then
Stack_empty = True
Else
pointer = pointer – 1
stack[pointer] = old,item
Endif
End Procedure
Maximum
‘If pointer = maximum Then’ checks if the pointer is full or not.