Unit 3: Decision Making, Branching, Iteration & Functions

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Decision Making, Branching, Iteration & Functions

Official MJPRU BCA Unit 3: Decision Making, Branching, Iteration & Functions for BCA-202N (Programming in Python).

Syllabus Topics:Conditional Branching: if Statement, if-else Statement, if-elif-else Ladder ArchitectureNested Decision Structures and Truth Value Testing (Truthy and Falsy Values)While Loop: Entry-Controlled Iteration, Infinite Loops, while-else Construct Execution SemanticsFor Loop: Sequence Iteration, range(start, stop, step) Generator, for-else Construct Execution SemanticsLoop Control Jump Statements: break (Immediate Loop Termination), continue (Skip Current Iteration), pass (Null Statement)List Comprehensions: Compact Syntax [expr for item in iterable if condition], Nested ComprehensionsDictionary and Set Comprehensions: {k: v for ...} and {x for ...}Defining Functions in Python: def Keyword, Function Signature, docstrings (__doc__)Function Parameters and Arguments: Positional Arguments, Keyword Arguments, Default Parameter Trap (Mutable Defaults)Arbitrary Variable-Length Arguments: *args (Positional Tuple) and **kwargs (Keyword Dictionary)Variable Scope & Lifetime: LEGB Rule (Local, Enclosing, Global, Built-in), global and nonlocal KeywordsFunctional Programming Primitives: Anonymous Functions (lambda), map(), filter(), reduce() (functools)

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Introduction to Computers & The IPO Cycle

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Topic 1 · The foundation of modern computing

Introduction to Computers & The IPO Cycle

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Ready to master this concept? Give it a quick read & tap the check!

💡 The Big Picture:A computer is an electronic system that takes raw data as Input, processes it under programmed logic, and produces meaningful Information as Output.

🍪 Everyday Analogy:Think of baking cookies: Flour & Sugar (Input) ➔ The Oven (Processing) ➔ Warm Delicious Cookie (Output)! 🍪

Key Exam Takeaways

·Data = Raw, unprocessed facts without context (e.g. 42, 'apple').
·Information = Structured data with meaning (e.g. 'Temperature: 42°C').
·Hardware is what you can touch; Software is the instructions running inside.

Instant Knowledge Check

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Which of the following represents unprocessed raw facts?

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