Computer Science with Python for Class 11 (textbook for CBSE) by Preeti Arora

This book, Informatics Practices with Python for Class XI (065), has been prepared in accordance with the latest CBSE syllabus for the 2023-24 academic session. The book focuses on teaching Python language to help students learn programming concepts and develop problem-solving skills and RDBMS operations to better organize and implement efficient database systems. With easy-to-understand examples, self-explanatory diagrams and other such tools, the student learns to design the logic for a program and then implement that program using Python. Besides tested, debugged and error-free codes with screenshots, ample concise and practical example programs derived from real-life situations have been provided in the book. CTM (Commit to Memory), Learning Tips and Points to Remember for easy recall of important terms and concepts are other notable features of the book. Strictly adhering to the CBSE curriculum and guidelines, the book has been divided into four units: Unit I: Introduction to Computer System (Chapter 1) Introduction to Computer and Computing: Evolution of Computing Devices; Components of a Computer System and their Interconnections; Input/Output Devices; Concept of Computer Memory, Units of Memory, Types of Memory—Primary and Secondary; Data Deletion, its recovery and related Security Concerns; Software: purpose and types—System and Application Software, Generic and Specific-Purpose Software. Unit II: Introduction to Python (Chapters 2 to 6) Basics of Python Programming; Python Interpreter—Interactive and Script Mode; Structure of a program, Indentation; Process of writing a program, running it and print statements; Data Types; Data Type Conversion; Tokens—Keywords, Identifiers, Constants, Variables; Operators—Types of Operators, Precedence of Operators; Debugging; Conditional Statements, Looping Constructs, Operations and Functions in Lists and Dictionaries.