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Symbols Used in Flowcharts
Different symbols are used to draw different types of flowcharts.
Symbol Name Description
It is used to show the start and stop points of the
(Start/Stop)
Oval flowchart. It usually contains the words 'Start' or 'Stop'.
Process It shows a process or action step.
Rectangle
It represents information entering or leaving the
Input/Output
Parallelogram system, i.e., input and output.
Decision It indicates a question or branch in the process flow. It
Diamond is used when there are 2 options (Yes/No).
Flow Line It shows the direction in which the process flows.
Example to calculate simple interest.
Start
Read P for Principal
r for rate
t for time Computational Thinking
Calculate
SI = (P * r * t)/100
Print SI
Stop
A. Complete the algorithm to search on Google for a
question “who developed first code?”
Step 1: Start
Step 2: Start your computer
Step 3: Open a
Step 4: In the address bar, type .com
Step 5: Type as your query
Step 6: Press
Step 7: End
B. Write an algorithm and draw a flowchart to add first 100 natural numbers.
The CT Corner! (Algorithmic Intelligence) 79

