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Example 4: Write an algorithm and draw a flowchart to calculate the factorial of a number.
Algorithm: Flowchart:
Step 1 Start. Start
Step 2 Read the number n.
Step 3 Let i=1, fact=1 Read n
Step 4 Check If i < = n Then Repeat
i = 1, fact = 1
Step 5 and 6 until i=n
Step 5 fact=fact*i
Is
Step 6 i=i+1 No
i < =
Step 7 Print fact n?
Step 8 Stop. Yes
fact = fact*i
Print fact
i = i + 1
Stop
MIND MAPS
A Mind Map is a also a problem-solving technique that allows us to organise ideas, thoughts, or
concepts and their relationship graphically.
In this technique, we pick up the ideas that have common features. These ideas are then grouped
under one category, and the different categories are linked to the main topic using lines or
arrows. Let us draw a Mind Map for Computer:
Railway Station
and Airport
Hardware
Hospitals
Software
Uses of Computer School
Homes
Parts of Computer
Computer
Types of Computers Cost of Computers
Main Frame Computers
Micro Computers
Super Computers Comparing Prices
88 Play (Ver. 2.1)-VI

