Preeti Arora Class 12 Computer Science: Chapter-Wise Breakdown Chapter 1: Review of Python Basics
Correcting syntax errors, executing manual dry runs, and determining the exact console output of nested structures. Chapter 2: Functions
User-defined functions, positional vs. default arguments, keyword arguments, local vs. global scope resolution (LEGB rule), and function execution stacks. Coding Example: global scope resolution (LEGB rule), and function execution
Runtime errors, tracking exceptions, structural execution blocks ( try , except , else , finally ), and raising explicit instances via the raise statement.
Tokens, data types (mutable vs. immutable), dynamic typing, operators, decision-making control statements ( if-elif-else ), and looping blocks ( for , while ). quick keyword searches
Writing robust scripts that prevent program termination during improper data input or zero-division scenarios. Chapter 4: Data File Handling
def calculate_total(price, tax=0.18): # tax is a default argument """Computes net price with statutory tax.""" return price + (price * tax) print(calculate_total(1000)) # Outputs: 1180.0 Use code with caution. Chapter 3: Exception Handling details chapter-wise concepts
The final evaluation structure divides 100 marks into two distinct components: and 30 Marks for the Practical Assessment . The Preeti Arora textbook organizes its content to systematically map against the official units defined by the CBSE: Unit Number Core Chapters Covered Marks Weightage Unit 1 Computational Thinking and Programming – 2 Chapters 1 to 5 Unit 2 Computer Networks Unit 3 Database Management Chapters 7 & 8 Total Theory Framework 8 Chapters Complete 70 Marks
Students frequently search for the of this book to facilitate split-screen coding, quick keyword searches, and portable revision on laptops or tablets. This article provides a comprehensive roadmap of the Preeti Arora Class 12 syllabus, details chapter-wise concepts, highlights official distribution metrics, and outlines authentic digital access methods. CBSE Class 12 Computer Science Blueprint & Weightage