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| Unit | Chapter Focus | Key Topics | Marks | | :--- | :--- | :--- | :--- | | | Computational Thinking and Programming – 2 | Revision of Python (Class XI), Functions (built-in, user-defined, scope of variable), Exception Handling (try-except-finally), File Handling (Text, Binary, CSV files), Data Structure (Stack implementation using list) | 40 | | II | Computer Networks | Evolution of Networking (ARPANET, Internet), Data Communication (IP address, switching), Transmission Media, Network Devices (Router, Switch, etc.), Network Types & Topologies, Protocols (HTTP, FTP, TCP/IP), Web Services | 10 | | III | Database Management | Database Concepts, Relational Data Model (Keys: Primary, Foreign), Structured Query Language (SQL), Python-MySQL Connectivity | 20 |
Rohan stared at the blinking cursor on his laptop screen. Outside his window in Lucknow, the monsoon rain hammered against the tin shed. Inside, it was just him and 847 unsolved Python problems. Outside his window in Lucknow, the monsoon rain
textbook, known among his peers as the ultimate map for the Python terrain.
Practice is the key to mastering Computer Science. The book offers an exhaustive list of chapter-end exercises, including: Multiple Choice Questions (MCQs) Short Answer Questions Conceptual "Find the Output" problems Full-fledged programming assignments Core Modules and Chapter Overview Practice is the key to mastering Computer Science
While buying a physical copy is recommended for eye health and focus, digital versions (PDFs) are excellent for quick searches and on-the-go study. NCERT Official Site: Provides the base syllabus and standard text. Educational Portals:
felt like an unmapped wilderness. He needed a guide—specifically, the legendary Sumita Arora
Sumita Arora Class 12 Computer Science with Python - Textbook + Practical Book Progress in CS - Combo Set fo 2 Books - 17th/Ed. 2026 Reprint [ORIGINAL