COMPUTER SCIENCE    083   (Syllabus as per CBSE class XI and XII  )


Note: Schools may choose from option 1 (Python) or option 2 (C++) and teach accordingly.

Learning Objectives:

• To understand basics of computers.
• To develop logic for Problem Solving.
• To develop problem solving skills and their implementation through Python (version: 2.7) or using C++.
• To understand and implement the concept of Object Oriented Methodology.
• To understand the concept of working with Relational Database.
• To understand the basic concept of Computing Logic.
• To understand the basic concepts of Communication and Networking technologies.
• To understand Open Source Software.

Class XI

 Unit 1: Computer Fundamentals (18 Theory + 6 Practical) Periods
Classification of computers: Basics of computer and its operation; Functional Components and their interconnections, concept of Booting.
Software concepts: Types of Software – System Software, Utility Software and Application Software
System Software: Operating System, Compiler, Interpreter and Assembler;
Operating System: Need for Operating System, Functions of Operating System (Processor Management, Memory Management, File Management and Device Management), Types of Operating System-Interactive (GUI based), Time Sharing, Real Time and Distributed, Commonly used Operating System: UNIX, LINUX, Windows, Solaris, BOSS (Bharat Operating System Solutions); Mobile OS – Android, Symbian.
Utility Software: Anti Virus, File Management tools, Compression tools and Disk Management tools (Disk Cleanup, Disk Defragmenter, Backup).
Open Source Concepts: Open Source Software, Freeware, Shareware, and Proprietary Software. Application Software: Office Tools – Word Processor, Presentation Tool, Spreadsheet Package,
Database Management System; Domain Specific tools – School Management System, Inventory Management System, Payroll System, Financial Accounting, Hotel Management, Reservation System and Weather Forecasting System.
Number System: Binary, Octal, Decimal, Hexadecimal and conversion between different number systems. Internal Storage encoding of Characters: ASCII, ISCII (Indian Scripts Standard Code for Information Interchange), and UNICODE (for multilingual computing)
Microprocessor: Basic concepts, Clock speed (MHz, GHz), 16 bit, 32 bit, 64 bit, 128 bit processors; Types – CISC Processors (Complex Instruction Set Computing), RISC Processors (Reduced Instruction Set Computing), and EPIC (Explicitly Parallel Instruction Computing). Memory Concepts: Units: Byte, Kilo Byte, Mega Byte, Giga Byte, Tera Byte, Peta Byte, Exa Byte, Zetta Byte, Yotta Byte. Primary Memory: Cache, RAM, ROM Secondary Memory: Fixed and Removable storage – Hard Disk Drive, CD/DVD Drive, Pen Drive, Blue Ray Disk. Input Output Ports/ Connections: Serial, Parallel and Universal Serial Bus, PS-2 port, Infrared port, Bluetooth, Firewire.

 

Unit 2: Programming Methodology       (28 Theory + 10 Practical) Periods

 

General Concepts: Modular Approach, Clarity and Simplicity of Expressions, Use of proper names

for Identifiers, Comments, Indentation; Documentation and Program Maintenance; Running and

Debugging programs, Syntax Errors, Run-Time Errors, Logical Errors

Problem Solving Methodologies: Understanding of the problem, Solution for the problem,

Identifying minimum number of inputs required for output, Writing code to optimizing execution

time and memory storage, step by step solution for the problem, breaking down solution into

simple steps (modular approach), Identification of arithmetic and logical operations required for

solution; Control Structure- Conditional control and looping (finite and infinite).

Problem Solving: Introduction to Algorithms/Flowcharts.

 

Unit 3: Introduction to Python (44 Theory + 36 Practical) Periods

 

Getting Started: Introduction to Python - an integrated high level language, interactive mode and

script mode. Data types – Number (Integer – boolean, decimal, octal, hexadecimal; Floating point;

Complex), none, Sequence (String,Tuples, List ) Sets, Mapping.

Mutable and Immutable Variables

Variables, Expressions and Statements: Values, Variables and Keywords; Operators and Operands

in Python: (Arithmetic, Relational and Logical operators), Operator precedence, Expressions and

Statements (Assignment statement); Taking input (using raw_input() and input() and displaying

output(print statement); (single and multiple line) prints with escape sequence and various

formats; Putting Comments.

 Functions: Importing Modules (entire module or selected objects), invoking built in functions,

functions from math module (for e.g. ceil, floor, fabs, exp, log, log10, pow, sqrt, cos, sin, tan,

degrees, radians, factorial,trunc,fmod),functions from random module (uniform, random, randint

choice shuffle). Function from datetime module (date, time, datetime, timedate), functions from

remodule (compile, match, group, start, end, span, search, findall, finditer), compostion.

Defining functions, invoking functions, arguments and parameters, scope (local and global),

passing parameters (default parameter values, keyword arguments), scope of variables, void

functions and functions returning values, flow of execution,recursion.

Conditional and looping construct: if else statement while, for (range function), break, continue,

else, pass, nested if, nested loops ,use of compound expression in conditional and looping

construct.

 

Unit 4: Programming with Python (50 Theory + 48 Practical) Periods

 

Strings:Creating, initializing and accessing the elements; String operators: +, *, in, not in, slice

[n:m]; Comparing strings using relational operators; String functions & methods: len( ), capitalize

( ), find( ), isalnum( ), isalpha( ), isdigit( ), lower( ), islower( ), isupper( ), upper( ), lstrip( ),

rstrip( ), isspace( ), istitle( ), partition( ), replace ( ), join( ), spilt( ), count( ), decode( ), encode

( ), swapcase( ), String( ), constants, Regular Expressions and Pattern Matching.

Lists: Concept of mutable lists, creating, initializing and accessing the elements, traversing,

appending, updating and deleting elements, composition, lists as arguments .

List operations: Joining, slicing, +,*, in, not in.

List functions and methods: len( ), insert( ), append( ), extend( ), sort( ), remove( ), reverse( ),

pop( ), list( ), count( ), extend( ), index( ), cmp( ), max( ), min( ).

Dictionaries: Concept of key-value pair, creating, initializing and accessing the elements in a

dictionary, traversing, appending, updating and deleting elements.

Dicitionary functions and methods: cmp ( ), len( ), clear( ), get( ), has_key( ), items( ),

key( ), update( ), values( ), pop( ), fromkeys( ), dict( ).

Tuples: Immutable concept, creating1, initializing and accessing elements in a tuple, Tuple

assignment, Tuple slices, Tuple indexing.

Tuple Functions: cmp( ), len( ), max( ), min( ), tuple( ), index( ), count( ), sum( ), any( ),

all( ), sorted( ), reversed( ).

 

 

Class XI (Practical)

Python

Duration: 3 hours Total Marks: 30

 

1. Programming in Python 12

One programming problem in Python to be developed and tested on Computer during the examination.
Marks are allotted on the basis of following:
Logic : 7 Marks
Documentation : 2 Marks

Output presentation : 3 Marks

 

2. One logical problem to be solved through flow charts. 

3. Project Work

Problems using String or List manipulation: General Guidelines: Initial Requirement, developing an
interface for user (it is advised to use text based interface screen), developing logic for playing the
game and developing logic for scoring points

. Hollywood/Hangman: A word Guessing game
. Cows 'N Bulls: A word/number Guessing game
. Random Number Guessing Game (High\Low)
. A game to check whether a word does not use any of the forbidden letters

or
Similar projects may be undertaken in other domains.(As mentioned in general guidelines for project,
given at the end of the curriculum in a group of 2-4 students)

 

4. Practical File 3+1*

(a) Record of the configuration of computer system used by the student in the computer lab (by
exploring inside computer system in the first 2 lab classes).
(b) Must have minimum 20 programs from the topics covered in class XI course.

. Programs on Control structures
. Programs on String manipulations
. Programs on List Manipulations
. Program in tuple & dictionary manipulation.
*1 mark is for innovating while developing programmes.

5. Viva Voce 02

Viva will be asked from the syllabus covered in class XI and the project developed by the student(s).