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  Computer Science (2024-25)  CLASS XII Code No. 083 Unit 1: Computational Thinking and Programming – 2  ● Revision of Python topics covered in Class XI.  ● Functions: types of function (built-in functions, functions defined in module, user defined functions), creating user defined function, arguments and parameters, default parameters, positional parameters, function returning value(s), flow of execution, scope of a variable (global scope, local scope)  ● Exception Handling: Introduction, handling exceptions using try-except-finally blocks  ● Introduction to files, types of files (Text file, Binary file, CSV file), relative and absolute paths Text file: opening a text file, text file open modes (r, r+, w, w+, a, a+), closing a text file, opening a file using with clause, writing/appending data to a text file using write() and writelines(), reading from a text file using read(), readline() and readlines(), seek and tell methods, manipulation of data in a te...

 Computer Science (2024-25) CLASS XI Code No. 083 Unit 1: Computer Systems and Organisation ● Basic computer organisation: Introduction to Computer System, hardware, software, input device, output device, CPU, memory (primary, cache and secondary), units of memory (bit, byte, KB, MB, GB, TB, PB) ● Types of software: System software (Operating systems, system utilities, device drivers), programming tools and language translators (assembler, compiler, and interpreter), application software ● Operating System(OS): functions of the operating system, OS user interface ● Boolean logic: NOT, AND, OR, NAND, NOR, XOR, NOT, truth tables and De Morgan’s laws, Logic circuits ● Number System: Binary, Octal, Decimal and Hexadecimal number system;conversion between number systems ● Encoding Schemes: ASCII, ISCII, and Unicode (UTF8, UTF32) ● Introduction to Problem-solving: Steps for Problem-solving (Analyzing the problem, developing an algorithm, coding, testing, and debugging), rep...

Informatics Practices (2024-25)  CLASS XI Code No. 065 Unit 1: Introduction to Computer System  Introduction to computer and computing:  evolution of computing devices, components of a computer system and their interconnections, Input/output devices. 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 2: Introduction to Python Basics of Python programming, execution modes: - interactive and script mode, the structure of a program, indentation, identifiers, keywords, constants, variables, types of operator, precedence of operators, data types, mutable and immutable data types, statements, expression evaluation. comments, input and output statements, data type conversion, debugging. Control Statements: if-else, if-elif-else, while loop, for loop  Lists: list operations - creating, in...

 The Kendriya Vidyalaya Sangathan (KVS) PGT CS exam typically covers the following chapters and topics in Computer Science: 1. *Computer Science Basics*:     - Introduction to Computer Science     - History of Computing     - Basic Computer Terminology 2. *Programming Concepts*:     - Programming Languages (C, C++, Java, Python)     - Data Types     - Variables     - Control Structures     - Functions     - Object-Oriented Programming (OOPs) concepts 3. *Data Structures and Algorithms*:     - Arrays     - Linked Lists     - Stacks     - Queues     - Trees     - Graphs     - Sorting and Searching Algorithms 4. *Computer Systems*:     - Hardware Components (CPU, Memory, Input/Output Devices)     - Software Components (Operating System, Application Software)     - Computer Networks (LAN, WAN, Inter...