Lecture on Flowcharts

Introduction

• Topic: Concluding Advanced Display with Flowcharts
• Definition: A flowchart is a pictorial representation of an algorithm using standard symbols or shapes.

Symbols in Flowcharts

• Process Box: Indicates internal operations inside the processor.
• Input/Output Box: Represents input or output operations (getting data or output results).
• Decision Box: Diamond-shaped; poses a binary question (Yes/No, True/False).
• Connector: Allows flowchart to be drawn without intersecting lines or reverse flow.
• Terminator: Marks start/stop operations/programs.
• Flow Lines: Show direction or flow by connecting operations.

Guidelines for Creating Flowcharts

1. Center the diagram on the page.
2. Use appropriate shapes for symbols.
3. Insert text by right-clicking on symbols.
4. Format flowchart as desired with color and spacing.

Practical Example: Temperature Check Flowchart

• Scenario: Security guard checks supermarket customers' temperature.
  • Input: Customer's temperature.
  • Decision: Temperature > 37.5°C means fever; customer should go home.
  • Output: If below 37.5°C, customer can enter.

Steps to Create the Flowchart

1. Heading: "Temperature Check"
2. Terminal: Start
3. Input/Output Box: Read temperature (abbreviated as Temp)
4. Decision Box: Is Temp > 37.5?
   • Yes: Print "Go home"
   • No: Print "Come in"
5. Connector: Bring flow back together
6. Terminal: Stop
7. Flow Lines: Use arrows to connect steps

Tips for Microsoft Word

• Use "No Spacing" to fit text neatly within symbols.
• Use "Insert Shapes" for flowchart symbols.
• Copy/paste symbols for uniformity.
• Use "Shape Outline" for textboxes (usually none).
• Add color to differentiate components (e.g., blue for terminators, green for processes, red for decisions).

Conclusion

• Final product should be centered and clearly readable.
• Preview to ensure proper centering and layout.
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