CBSE Class 11 Computer Science 2023 For Term 1 & Term 2 | Syllabus, NCERT Solutions, Question Papers, Notes

CBSE Computer Science For Class – XI By Reeta Sahoo, Gagan Sahoo

S Chand’s Computer Science For Class XI

Computer Science For Class-XI Study Cum Support Material

NCERT Textbook Computers And Communication Technology Part-2 For Class-11

NCERT Textbook Computers And Communication Technology Part-1 For Class-11

NCERT Computers and Communication Technology Part I Class XI

NCERT Computers and Communication Technology Part II Class XI

• Basic Computer Organisation: Introduction to a 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 & interpreter), application software
• Operating system (OS): functions of the operating system, OS user interface
• Boolean logic: NOT, AND, OR, NAND, NOR, XOR, truth table, De Morgan’s laws and logic circuits
• Number system: Binary, Octal, Decimal, and Hexadecimal number system; conversion between number systems.
• Encoding schemes: ASCII, ISCII, and UNICODE (UTF8, UTF32)
• Emerging trends: Cloud computing, cloud services (SaaS, IaaS, PaaS), blockchains, Artificial Intelligence (AI), Machine Learning (ML), Internet of Things (IoT)

• Introduction to problem-solving: Steps for problem-solving (analyzing the problem, developing an
  algorithm, coding, testing, and debugging). Representation of algorithms using flow charts and
  pseudo code, decomposition
• pseudo code, decomposition
  ● Familiarization with the basics of Python programming: Introduction to Python, features of
  Python, executing a simple “hello world” program, execution modes: interactive mode and script
  mode, Python character set, Python tokens (keyword, identifier, literal, operator, punctuator),
  variables, the concept of l-value and r-value, use of comments
• Knowledge of data types: number (integer, floating point, complex), boolean, sequence (string,
  list, tuple), none, mapping (dictionary), mutable and immutable data types
• Operators: arithmetic operators, relational operators, logical operators, assignment operators,
  augmented assignment operators, identity operators (is, is not), membership operators (in, not in)
• Expressions, statement, type conversion & input/output: precedence of operators, expression,
  evaluation of an expression, python statement, type conversion (explicit & implicit conversion),
  accepting data as input from the console and displaying output
• Errors: syntax errors, logical errors, runtime errors
• The flow of control: introduction, use of indentation, sequential flow, conditional and iterative flow
  control
• Conditional statements: if, if-else, if-elif-else, flowcharts, simple programs: e.g.: absolute value,
  sort 3 numbers and divisibility of a number
• Iterative statements: for loop, range function, while loop, flowcharts, break and continue
  statements, nested loops, suggested programs: generating pattern, summation of series, finding
  the factorial of a positive number etc
• Strings: introduction, indexing, string operations (concatenation, repetition, membership &
  slicing), traversing a string using loops, built-in functions: len(), capitalize(), title(), lower(), upper(),
  count(), find(), index(), endswith(), startswith(), isalnum(), isalpha(), isdigit(), islower(), isupper(),
  isspace(), lstrip(), rstrip(), strip(), replace(), join(), partition(), split()
• Lists: introduction, indexing, list operations (concatenation, repetition, membership & slicing),
  traversing a list using loops, built-in functions: len(), list(), append(), extend(), insert(), count(),
  index(), remove(), pop(), reverse(), sort(), sorted(), min(), max(), sum(); nested lists, suggested
  programs: finding the maximum, minimum, and mean of numeric values stored in a list; linear search
  on the list of numbers and counting the frequency of elements in a list
• Tuples: introduction, indexing, tuple operations (concatenation, repetition, membership & slicing),
  built-in functions: len(), tuple(), count(), index(), sorted(), min(), max(), sum(); tuple assignment,
  nested tuple, suggested programs: finding the minimum, maximum, and mean of values stored in a
  tuple; linear search on a tuple of numbers, counting the frequency of elements in a tuple
• Dictionary: introduction, accessing items in a dictionary using keys, the mutability of the dictionary (adding
  a new item, modifying an existing item), traversing a dictionary, built-in functions: len(), dict(),
  keys(), values(), items(), get(), update(), del(), clear(), from keys(), copy(), pop(), pop item(),
  set default(), max(), min(), count(), sorted(), copy(); suggested programs : count the number of
  times a character appears in a given string using a dictionary, create a dictionary with the names of
  employees, their salary, and access to them
• Sorting techniques: Bubble and Insertion sort
• Introduction to Python modules: Importing module using ‘import ‘ and using from statement, Importing math module (pi, e, sqrt, ceil, floor, pow, abs, sin, cos, tan); random module (random, randint, and range), statistics module (mean, median, mode)

• Digital Footprints
• Digital society and Netizen: net etiquettes, communication etiquettes, social media etiquettes
• Data protection: Intellectual Property Rights (copyright, patent, trademark), violation of IPR
  (plagiarism, copyright infringement, trademark infringement), open source software and
  licensing (Creative Commons, GPL, and Apache)
• Cyber-crime: definition, hacking, eavesdropping, phishing and fraud emails, ransomware,
  preventing cybercrime
• Cyber safety: safely browsing the web, identity protection, confidentiality, cyber trolls and
  bullying.
• Safely accessing websites: malware, viruses, trojans, adware
• E-waste management: proper disposal of used electronic gadgets
• Indian Information Technology Act (IT Act)
• Technology & Society: Gender and disability issues while Teaching and using computers

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