Class 11 Computer Science — Chapter 6: FLOW OF CONTROL

What you'll learn

• ▸Flow of Control
• ▸Selection using Conditional Statements
• ▸The `if` Statement
• ▸The `if..else` Statement
• ▸The `if..elif..else` Chain
• ▸Nested `if` Statements
• ▸Indentation in Python
• ▸Repetition and Looping

Chapter Summary

--- PAGE 1 --- CHAPTER 6 FLOW OF CONTROL 6.1 Introduction In Figure 6.1, we see a bus carrying the children to school. There is only one way to reach the school. The driver has no choice, but to follow the road one milestone after another to reach the school. We learnt in Chapter 5 that this is the concept of sequence, where Python executes one statement after another from beginning to the end of the program. These are the kind of programs we have been writing till now. SCHOOL BUS “Don’t you hate code that’s not properly indented? Making it [indenting] part of the syntax guarantees that all code is properly indented.” – G. van Rossum School Figure 6.1: Bus carrying students to school Let us consider a program 6-1 that executes in sequence, that is, statements are executed in an order in which they are written. The order of execution of the statements in a program is known as flow of control. The flow of control can be implemented using con…

Practice Questions from this Chapter

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1. Explain flow of control simply. Get Solution →
2. Show decision making in games. Get Solution →
3. Illustrate conditional logic with a story. Get Solution →
4. What is the term for the order in which statements are executed in a program? Get Solution →
5. According to the chapter, what are the two types of control structures that Python supports? Get Solution →
6. Which Python statement is used to implement the concept of decision making or selection? Get Solution →
7. In Python's if-elif-else structure, what does 'elif' stand for? Get Solution →
8. What does Python use to associate statements into a single block of code? Get Solution →

Did you know?

• 💡 The first programmable machine was a musical automaton in the 9th century.
• 💡 Early traffic lights in London used gas lamps and required a human operator.
• 💡 Computers make decisions using 'Boolean logic,' invented by George Boole in the 1800s.
• 💡 Ancient Greek engineers built complex water clocks with automatic control mechanisms.
• 💡 A vending machine uses sophisticated decision-making logic to dispense items.

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