Computer Science : Class XI
Code No : 083
2023-24
Distribution of Marks:
|
Unit
No. |
Unit Name |
Marks |
Periods |
|
|
Theory |
Practical |
|||
|
I |
Computer
System and Organisation |
10 |
10 |
10 |
|
II |
Computational
Thinking and Programming-1 |
45 |
80 |
60 |
|
III |
Society,
Law and Ethics |
15 |
20 |
--- |
|
|
|
70 |
110 |
70 |
Unit wise Syllabus
Unit I: 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)
Unit II: Computational Thinking and Programming - I
● Introduction to Problem-solving: Steps for Problem-solving (Analyzing the problem, developing an algorithm, coding, testing, and debugging), representation of algorithms using flowchart and pseudocode, 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, concept of l-value and r-value, use of
comments
● 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, and input/output: precedence of operators, expression, evaluation of an expression, type-conversion (explicit and implicit conversion), accepting data as input from the console and displaying output.
Errors- syntax errors, logical errors,
and run-time errors
● Flow of Control: introduction, use of
indentation, sequential flow, conditional 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, mean of numeric
values stored in a list; linear search on 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, 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 names of employees, their salary and
access them.
● Introduction to Python modules:
Importing module using ‘import <module>’ and using from statement,
importing math module (pi, e, sqrt(), ceil(), floor(), pow(), fabs(), sin(),
cos(), tan()); random module (random(), randint(), randrange()), statistics
module (mean(), median(), mode()).
Unit III: Society, Law and Ethics
● Digital Footprints
● Digital Society and Netizen: net etiquettes, communication
etiquettes, social media étiquettes
● 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, cyber trolls, cyber bullying
● Cyber safety: safely browsing the web, identity protection,
confidentiality
● Malware: viruses,
trojans, 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
4. Practical
|
S.No. |
Unit Name |
Marks(Total=30) |
|
1 |
Lab Test(12 marks) |
|
|
|
Python program (60% logic + 20%
documentation + 20% Code quality) |
12 |
|
2 |
Report
file: Minimum 20 Python programs
|
7 |
|
|
Viva
voce
|
3 |
|
3 |
Project
(that uses most of the concepts that have been learnt)
|
8 |
5. Suggested Practical List
Python Programming
● Input a welcome message and display it.
● Input two numbers and display the larger / smaller number.
● Input three numbers and
display the largest / smallest number.
● Generate the following patterns using nested loops:
|
Pattern-1
|
Pattern-2
|
Pattern-3
|
|
* ** *** **** *****
|
12345 1234 123 12 1
|
A AB ABC ABCD ABCDE
|
● Input a number and check
if the number is a prime or composite number.
● Display the terms of a
Fibonacci series.
● Compute the greatest common divisor and least common
multiple of two integers.
● Count and display the number of vowels, consonants,
uppercase, lowercase characters in string.
● Input a string and determine whether it is a palindrome or
not; convert the case of characters in a string.
● Find the largest/smallest number in a list/tuple
● Input a list of numbers and swap elements at the even
location with the elements at the odd location.
● Input a list/tuple of
elements, search for a given element in the list/tuple.
● Create a dictionary with the roll
number, name and marks of n students in a class and display the names of
students who have marks above 75.
Suggested Reading Material
● NCERT Textbook for
Computer Science (Class XI)
● Support Material on CBSE website
