Flowcharts & its Symbols-Problem Solving

 Class 9th     Chapter # 01

• Flowcharts Definition: It is a graphical representation of the steps to solve a problem.
• Importance of Flowcharts in Problem Solving: It is more effective to visualize a solution graphically than a text.
• It also makes it effective to verify whether a solution is correct or not.
• Determining Requirements for a Flowchart: 
• Inputs: It means taking data from the user.
• Processing: These steps are used for performing calculations & storing the results of calculations.
• Input ⇒ Process⇒ Output
• Decision Making: To determine whether a statement is true or false & taking appropriate steps accordingly.
• Outputs: These are used to display information & usually this information exhibits processed results.
• Flowchart Symbols: Flowcharts use special shapes to represent different types of actions or steps in a process.
• Symbol                       Name               Description

        ➔                               Flowline            Flow of steps.

        ▢                               Terminal           It indicates start and end of flowchart.

      

        ▅                              Process             It represents operations to change values.

         

       🔷                             Decision            It shows conditional operations.

    

        ▰                              Input/ Output    It indicates input & output.

  

       ⬮                               Connector         It connect two pages.