Unit 4: Classes, Objects, Inheritance & Advanced OOP — Programming in Python

Unit 4 Learning Hub

Classes, Objects, Inheritance & Advanced OOP

Official MJPRU BCA Unit 4: Classes, Objects, Inheritance & Advanced OOP for BCA-202N (Programming in Python).

Syllabus Topics:Object-Oriented Philosophy in Python: Classes as Types, Everything is an ObjectClass Definition: class Keyword, Instance Attributes vs Class Attributes, Self Parameter MechanicsConstructor & Destructor Methods: __init__() Initializer, __new__() Allocator, __del__() FinalizerEncapsulation and Information Hiding: Public Members, Protected (_var Convention), Private (__var Name Mangling)Property Decorators: @property, @setter, @deleter for Controlled Attribute AccessInheritance Architecture: Single Inheritance, Multilevel Inheritance, Hierarchical Inheritance, Multiple InheritanceMethod Resolution Order (MRO): C3 Superclass Linearization Algorithm, ClassName.__mro__, super() FunctionPolymorphism & Duck Typing: 'If it walks like a duck and quacks like a duck, it is a duck'Method Overriding vs Method Overloading: Why Python Does Not Support Native Overloading (Dispatch by Default/args)Operator Overloading & Dunder (Magic) Methods: __str__, __repr__, __add__, __sub__, __mul__, __eq__, __len__, __getitem__Class Composition and Aggregation: HAS-A Relationships vs IS-A InheritanceAbstract Base Classes (abc Module): @abstractmethod Decorator, Enforcing Contractual Subclass Implementations

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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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