CBSE Class 11 Computer Science Syllabus

– Software can be divided into three categories: application software, programming tools, and language translators (assemblers, compilers, and interpreters). System software includes operating systems, system utilities, and device drivers.

– Operating System (OS): includes the OS user interface and operating system functions.

Boolean logic includes truth tables, De Morgan’s laws, logic circuits, AND, OR, NAND, NOR, XOR, and NOT.

Number System: Converting between Binary, Octal, Decimal, and Hexadecimal number systems – Charsets: Unicode (UTF8, UTF32), ASCII, and ISCII

– Gaining knowledge of the fundamentals of Python programming: Overview of Python, its features, running a basic “hello world” program, two execution modes (script and interactive), the Python character set, tokens (keyword, identifier, literal, operator, punctuator), variables, the notion of l- and r-values, and the use of comments

A working knowledge of the following data types is required: None, mapping (dictionary), boolean, sequence (string, list, tuple), mutable, and immutable.

– Operators: identity operators (is, is not), membership operators (in, not in), arithmetic operators, relational operators, logical operators, assignment operators, augmented assignment operators Statements, expressions, type conversion, and input/output: operators’ precedence, expressions, evaluation of an expression, type conversion (implicit and explicit), taking in data from the console as input, and output display.

There are three types of errors: run-time, logical, and syntax.

– Flow of Control: introduction, use of indentation, sequential flow, conditional flow, and iterative flow

– Conditional statements: if, if-else, if-elif-else, flowcharts, simple programs: e.g.: absolute value, sort 3 numbers, and divisibility of a number.

– Iterative Statement: for loop, range(), 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, string operations (concatenation, repetition, membership and slicing), traversing a string using loops, built-in functions/methods–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 and slicing), traversing a list using loops, built-in functions/methods–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 a list of numbers; and counting the frequency of elements in a list.

– Tuples: introduction, indexing, tuple operations (concatenation, repetition, membership, and slicing); built-in functions/methods – 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, mutability of a dictionary (adding a new term, modifying an existing item), traversing a dictionary, built-in functions/methods – len(), dict(), keys(), values(), items(), get(), update(), del(), del, clear(), fromkeys(), copy(), pop(), popitem(), setdefault(), max(), min(), sorted(); 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 and their salaries; and access them.

– Introduction to Python Modules: Importing modules using ‘import <module>’ and using from statement; importing math modules (pi, e, sqrt(), ceil(), floor(), pow(), fabs(), sin(), cos(), tan()), random modules (random(), randint(), randrange()); and statistics modules (mean(), median(), mode()).

– Cyber Crime: definition, hacking, eavesdropping, phishing and fraud emails, ransomware, cyber trolls, cyber bullying – Cyber safety: safely browsing the web, identity protection, confidentiality

– Malware: viruses, trojans, and adware

– E-waste management: proper disposal of used electronic gadgets. – Information Technology Act (IT Act)

– Technology and society: Gender and disability issues while teaching and using computers

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