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Computer Science (Code 083)

CBSE-Curriculum 2008


Learning Objectives:

1. To understand the problem statement

2. To develop logic for problem solving

3. To understand the concept of Object Oriented Methodology

4. To implement Object Oriented Programming using C++

5. To understand the concept of working with Relational Database

6. To understand the basic concept of algebra of logic

7. To understand and explore the world of communication and networks


Competencies:

The student will be proficient in the following:

1. Identification of a system

2. Categorisation of parts of an objective system

3. Problem Solving

4. Designing an efficient logic using object oriented approach for solution

development

5. Database handling

6. Logic Circuit designing

Class XI (Theory)

Duration: 3 hours Total Marks: 70

Unit No. Unit Name Marks

1. COMPUTER FUNDAMENTALS 06

2. PROGRAMMING METHODOLOGY 10

3. INTRODUCTION TO PROGRAMMING IN C++ 44

4. COMPUTER SYSTEM ORGANISATION 10

 

UNIT 1: COMPUTER FUNDAMENTALS

Evolution of computers; Basics of computer and its operation: Functional

Components and their inter-connections, concept of Booting, Use of Operating

System for directory listing, hierarchical directory structure, renaming, deleting

files/folders, formatting floppy, copying files, concepts of path and pathname,

switching between tasks, installation/removal of applications;

Software Concepts:

Types of Software - System Software, Utility Software and Application Software;

System Software: Operating System, Compilers, Interpreters 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;

Note: The above-mentioned Operating System specific tasks can be illustrated

and implemented using any operating system.

 

UNIT 2: PROGRAMMING METHODOLOGY

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 Methodology and Techniques: Understanding of the problem,

Identifying minimum number of inputs required for output, Step by step solution

for the problem, breaking down solution into simple steps, Identification of

arithmetic and logical operations required for solution, Using Control Structure:

Conditional control and looping (finite and infinite);

 

UNIT 3: INTRODUCTION TO PROGRAMMING IN C++

“Object Oriented Technology is regarded as the ultimate paradigm for the modeling of information, be that

information data or logic. The C++ has by now shown to fulfill this goal.”

Programming by Example In C++ Language :

C++ character set, C++ Tokens (Identifiers, Keywords, Constants, Operators),

Structure of a C++ Program (include files, main function); Header files –

iostream.h, iomanip.h; cout, cin; Use of I/O operators (<< and >>), Use of endl

and setw(), Cascading of I/O operators, Error Messages; Use of editor, basic

commands of editor, compilation, linking and execution; standard input/output

operations from C language: gets(), puts() of stdio.h header file;

Data Types, Variables and Constants:

Concept of Data types; Built-in Data types: char, int, float and double;

Constants: Integer Constants, Character Constants (Backslash character

constants - /n, /t ), Floating Point Constants, String Constants; Access modifier:

const; Variables of built-in data types, Declaration/Initialisation of variables,

Assignment statement; Type modifier: signed, unsigned, long;;

Operators and Expressions:

Operators: Arithematic operators (-,+,*,/,%), Unary operator (-), Increment and

Decrement Operators (--,++), Relational operators (>,>=,<,<=,==,!=), Logical

operators (!, &&, ||), Conditional operator: <condition>?<if true>:<else>;

Precedence of Operators; Expressions; Automatic type conversion in

expressions, Type casting; C++ shorthands (+=, -=, *=, /=, %=);

Flow of control:

Conditional statements: if-else, Nested if, switch..case..default, Nested

switch..case, break statement (to be used in switch..case only); Loops: while ,

do - while , for and Nested loops;

Structured Data Type: Array

Declaratrion/initialisation of One dimensional array, Inputting array elements,

Accessing array elements, Manipulation of Array elements (sum of elements,

product of elements, average of elements, linear search, finding

maximum/minimum value);

Declaration/Initilaisaion of a String, string manipulations (counting

vowels/consonants/digits/special characters, case conversion, reversing a string,

reversing each word of a string); String and Character related Library functions:

isalnum(), isalpha(), isdigit(), islower(), isupper(), tolower(), toupper(),

strcpy(), strcat(), strlen(), strcmp(), strcmpi();

Declaration/initialisation of a two-dimensional array, inputting array elements

Accessing array elements, Manipulation of Array elements (sum of row element,

column elements, diagonal elements, finding maximum/minimum values);

User Defined Functions:

Defining a function; function prototype, Invoking/calling a function, passing

arguments to function, specifying argument data types, default argument,

constant argument, call by value, call by reference, returning values from a

function, calling functions with arrays, scope rules of functions and variables;

local and global variables;

Mathematical and Other Functions:

Header Files-math.h, stdlib.h;

Functions: fabs(), log(), log10(), pow(), sqrt(), sin(), cos(), abs(), randomize(),

random() ;

Event programming: Games as examples

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

1. Memory Game: A number guessing game with application of 2

dimensional arrays containing randomly generated numbers in pairs

hidden inside boxes.

2. Cross ‘N Knots Game: A regular tic-tac-toe game

3. Hollywood/Hangman: A word Guessing game

4. Cows ‘N Bulls: A word/number Guessing game

 

UNIT 4: COMPUTER SYSTEM ORGANISATION

Number System: Binary, Octal, Decimal, Hexadecimal and conversion between

two different number systems. Integer, Floating Point, 2’s complement of number

from base-2;

Internal Storage encoding of Characters: ASCII, ISCII (Indian scripts Standard

Code for Information Interchange), UNICODE;

Microprocessor: Basic concepts, Clock speed (MHz, GHz), 16 bit, 32 bit, 64 bit

processors; Types – CISC, RISC; Concept of System Buses, Address bus, Data

bus,

Concepts of Accumulator, Instruction Register, and Program Counter;

Commonly used CPUs and CPU related terminologies: Intel Pentium Series, Intel

Celeron, Cyrix, AMD Series, Xeon, Intel Mobile, Mac Series; CPU Cache;

Concept of heat sink and CPU fan, Motherboard; Single, Dual and Multiple

processors;

Types of Memory: Cache (L1,L2), Buffer, RAM (DRAM, SDRAM, RDRAM,

DDRAM), ROM (PROM, EPROM), Access Time;

Input Output Ports/Connections: Power connector, Monitor Socket, Serial (COM)

and Parallel (LPT) port, Universal Serial Bus port, PS-2 port, SCSI port, PCI/MCI

socket, Keyboard socket, Infrared port (IR), audio/speaker socket, Mic socket;

data Bus; external storage devices connected using I/O ports;

Power Supply: Switched Mode Power Supply (SMPS): Elementary Concept of

Power Supply: Voltage, Current, Power (Volt, Ampere, Watt), SMPS supplies –

Mother Board, Hard Disk Drive, Floppy Disk Drive, CD/DVD Drive;

Power Conditioning Devices: Voltage Stabilizer, Constant Voltage Transformer

(CVT), Uninterrupted Power Supply (UPS)-Online and offline.


Class XI (Practical)

Duration: 3 Hours Total Marks: 30

1. Programming in C++ 10

One programming problem in C++ to be developed and tested in Computer

during the examination. Marks are allotted on the basis of following:

Logic : 5 Marks

Documentation/Indentation : 2 Marks

Output presentation : 3 Marks

Notes: The types of problems to be given will be of application type from the

following topics

 

2 Project Work 10


(As mentioned in general guidelines for project, given at the end of the

curriculum)

 

3 Practical File 05

Must have minimum 15 programs from the topics covered in class XI course.

 

4 Viva Voce 05

Viva will be asked from syllabus covered in class XI and the project developed by

student.

 

Class XII (Theory)

Duration: 3 Hours Total Marks: 70

Unit No. Unit Name Marks

1. PROGRAMMING IN C++ 30

2. DATA STRUCTURE 16

3. DATABASE AND SQL 8

4. BOOLEAN ALGEBRA 8

5. COMMUNICATION AND NETWORK CONCEPTS 8

 

UNIT 1: PROGRAMMING IN C++

REVIEW: C++ covered In Class -XI,

Defining a symbol name using typedef keyword and defining a macro using

#define directive;

Need for User defined data type;

Structures:

Defining a Structure, Declaring structure variables, Accessing structure elements,

Passing structure to Functions as value and reference argument/parameter,

Function returning structure, Array of structures, passing an array of structure as

an argument/ a parameter to a function;

Object Oriented Programming:

Concept of Object Oriented Programming – Data hiding, Data encapsulation,

Class and Object, Abstract class and Concrete class, Polymorphism

(Implementation of polymorphism using Function overloading as an example in

C++); Inheritance, Advantages of Object Oriented Programming over earlier

programming methodologies,

Implementation of Object Oriented Programming concepts in C++:

Definition of a class, Members of a class - Data Members and Member Functions

(methods), Using Private and Public visibility modes, default visibility mode

(private); Member function definition: inside class definition and outside class

definition using scope resolution operator (::); Declaration of objects as instances

of a class; accessing members from object(s), Array of type class, Objects as

function arguments - pass by value and pass by reference;

Constructor and Destructor:

Constructor: Special Characteristics, Declaration and Definition of a constructor,

Default Constructor, Overloaded Constructors, Copy Constructor, Constructor

with default arguments;

Destructor: Special Characteristics, Declaration and definition of destructor;

Inheritance (Extending Classes): Concept of Inheritance, Base Class, Derived

Class, Defining derived classes, protected visibility mode; Single level

inheritance, Multilevel inheritance and Multiple inheritance, Privately derived,

Publicly derived and Protectedly derived class, accessibility of members from

objects and within derived class(es);

Data File Handling:

Need for a data file, Types of data files – Text file and Binary file;

Basic file operations on text file: Creating/Writing text into file, Reading and

Manipulation of text from an already existing text File (accessing sequentially);

Binary File: Creation of file, Writing data into file, Searching for required data

from file, Appending data to a file, Insertion of data in sorted file, Deletion of data

from file, Modification of data in a file;

Implementation of above mentioned data file handling in C++;

Components of C++ to be used with file handling:

Header file: fstream.h; ifstream, ofstream, fstream classes;

Opening a text file in in, out, and app modes;

Using cascading operators for writing text to the file and reading text from the file;

open(), get(), put(), getline() and close() functions; Detecting end-of-file (with or

without using eof() function);

Opening a binary file using in, out, and app modes;

open(), read(), write() and close() functions; Detecting end-of-file (with or

without using eof() function); tellg(), tellp(), seekg(), seekp() functions

Pointers:

Declaration and Initialization of Pointers; Dynamic memory

allocation/deallocation operators: new, delete; Pointers and Arrays: Array of

Pointers, Pointer to an array (1 dimensional array), Function returning a pointer,

Reference variables and use of alias; Function call by reference. Pointer to

structures: Deference operator: *, ->; self referencial structures;

 

UNIT 2: DATA STRUCTURES

Arrays:

One and two Dimensional arrays: Sequential allocation and address calculation;

One dimensional array: Traversal, Searching (Linear, Binary Search), Insertion of

an element in an array, deletion of an element from an array, Sorting (Insertion,

Selection, Bubble sort), concatenation of two linear arrays, merging of two sorted

arrays;Two-dimensional arrays: Traversal, Finding sum/difference of two NxM arrays containing numeric values, Interchanging Row and Column elements in a two dimensional array;

Stack (Array and Linked implementation of Stack):

Operations on Stack (PUSH and POP) and its Implementation in C++,

Converting expressions from INFIX to POSTFIX notation and evaluation of

Postfix expression;

Queue: (Circular Array and Linked Implementation):

Operations on Queue (Insert and Delete) and its Implementation in C++.

 

UNIT 3: DATABASES AND SQL

Database Concepts:

Relational data model: Concept of domain, tuple, relation, key, primary key,

alternate key, candidate key;

Relational algebra: Selection, Projection, Union and Cartesian product;

Structured Query Language:

General Concepts: Advantages of using SQL, Data Definition Language and

Data Manipulation Language;

Data types: NUMBER, CHARACTER, DATE;

SQL commands:

CREATE TABLE, DROP TABLE, ALTER TABLE, UPDATE...SET..., INSERT,

DELETE;

SELECT, DISTINCT, FROM, WHERE, IN, BETWEEN, GROUP BY, HAVING,

ORDER BY;

SQL functions: SUM, AVG, COUNT, MAX and MIN;

Note: Implementation of the above mentioned commands could be done on any

SQL supported software.

 

UNIT 4: BOOLEAN ALGEBRA

Evolution of Boolean algebra, Binary-valued Quantities, Boolean Variable,

Boolean Constant and Boolean Operators: AND, OR, NOT; Truth Tables;

Closure Property, Commutative Law, Associative Law, Identity law, Inverse law,

Principle of Duality, Idempotent Law, Distributive Law, Absorption Law, Involution

law, DeMorgan's Law and their applications; Obtaining Sum of Product (SOP) and Product of Sum (POS) form from the Truth

Table, Reducing Boolean Expression (SOP and POS) to its minimal form, Use of

Karnaugh Map for minimisation of Boolean expressions (up to 4 variables);

Basic Logic Gates (NOT, AND, OR, NAND, NOR) and their use in circuits.

 

UNIT 5: COMMUNICATION AND NETWORK CONCEPTS

Evolution of Networking: ARPANET, Internet, Interspace;

Different ways of sending data across the network with reference to switching

techniques;

Data Communication terminologies: Concept of Channel, Baud, Bandwidth (Hz,

KHz, MHz) and Data transfer rate (bps, kbps, Mbps, Gbps, Tbps);

Transmission media: Twisted pair cable, coaxial cable, optical fiber, infrared,

radio link, microwave link and satellite link.

Network devices: Modem, RJ45 connector, Ethernet Card, Hub, Switch,

Gateway;

Different Topologies- Bus, Star, Tree; Concepts of LAN, WAN, MAN;

Protocol: TCP/IP, File Transfer Protocol (FTP), PPP, Level-Remote Login

(Telnet), Internet, Wireless/Mobile Communication, GSM, CDMA, WLL, 3G,

SMS, Voice mail, Application Electronic Mail, Chat, Video Conferencing;

Network Security Concepts: Cyber Law, Firewall, Cookies, Hackers and

Crackers;

WebPages; Hyper Text Markup Language (HTML), eXtensible Markup Language

(XML); Hyper Text Transfer Protocol (HTTP); Domain Names; URL; Protocol

Address; Website, Web browser, Web Servers; Web Hosting.

 

Class XII (Practicals)

Duration: 3 hours Total Marks: 30

1. Programming in C++ 10

One programming problem in C++ to be developed and tested in Computer

during the examination. Marks are allotted on the basis of following:

Logic : 5 Marks

Documentation/Indentation : 2 Marks

Output presentation : 3 Marks

Notes: The types of problems to be given will be of application type from the

following topics

Arrays (One dimensional and two dimensional)

Array of structure

Stack using arrays and linked implementation

Queue using arrays (circular) and linked implementation

Binary File operations (Creation, Displaying, Searching and modification)

Text File operations (Creation, Displaying and modification)

 

2. SQL Commands 05

Five Query questions based on a particular Table/Reaction to be tested

practically on Computer during the examination. The command along with the

result must be written in the answer sheet.

 

3. Project Work 05

The project has to be developed in C++ language with Object Oriented

Technology and also should have use of Data files.

Presentation on the computer

Project report (Listing, Sample, Outputs, Documentation

Viva

 

4. Practical File 05

Must have minimum 20 programs from the following topics

Arrays (One dimensional and two dimensional, sorting, searching,

merging, deletion'&

insertion of elements)

Arrays of structures, Arrays of Objects

Stacks using arrays and linked implementation

Queues using arrays (linear and circular) and linked implementation

File (Binary and Text) operations (Creation, Updation, Query)

Any computational based problems

15 SQL commands along with the output based on any table/relation: 3 Marks

 

5. Viva Voce 05

Viva will be asked from syllabus covered in class XII and the project developed

by student.

GUIDELINES FOR PROJECTS (Class XI and XII)

1. Preamble

1.1 The academic course in Computer Science includes one Project in

each year. The Purpose behind this is to consolidate the concepts and

practices imparted during the course and to serve as a record of

competence.

1.2 A group of two students/three student as team may be allowed to work

on one project.

2. Project content

2.1 Project for class XI can be selected from one of the topics given in

event programming.

2.2 Project for class XII should ensure the coverage of following areas

of curriculum:

a. Problem Solving

b. Data Structure

c. Object Oriented Programming in C++

d. Data File Handling

Theme of the project can be

Any subsystem of a System Software or Tool

Any Scientific or a fairly complex algorithmic situation.

Business oriented problems like Banking, Library information

system, Hotel or Hospital management system, Transport query

system

Quizzes/Games;

Tutor/Computer Aided Learning Systems

2.3 The aim of the project is to highlight the abilities of algorithmic

formulation, modular programming, optimized code preparation,

systematic documentation and other associated aspects of Software

Development.

2.4 The assessment would be through the project demonstration and the

Project Report, which should portray Programming Style, Structured

Design, Minimum Coupling, High Cohesion, Good documentation of the

code to ensure readability and ease of maintenance.

 

Reference Books

Computer Organisation and boolean Algebra

1. Rajaraman, FUNDAMENTALS OF COMPUTERS, Prentice Hall of India.

2. C.W.Gear, COMPUTER ORGANISATION AND PROGRAMMING,

McGraw Hill Publishing.

3. A.P. Malvino, DIGITAL COMPUTER FUNDAMENTALS, Tata McGraw Hill

Publishing Co. Ltd.

4. J. Shelly & Roger Hunt, COMPUTER STUDIES, Wheeler's Publication.

5. C.S. French, COMPUTER STUDIES, Arnold Publishers.

6. Thomas C. Bartee, DIGITAL COMPUTER FUNDAMENTALS, McGraw Hill

International.

 

Problem Solving and Programming in C++

Note: Prior knowledge of C is not required in the learning of C++, eventhough

reference about C are made in some of the books.

1. Robert Lafore, OBJECT ORIENTED PROGRAMMING IN TURBO C++,

Galgotia Publications Pvt. Ltd.

2. David Parsons, OBJECT ORIENTED PROGRAMMING WITH C++, BPB

Publications.

3. Bjarne Stroutrup, THE C++ PROGRAMMING LANGUGE, Adison Wesley.

4. AI Stevens, TEACH YOUR SELF C++ TECHNIQUES & APPLICATIONS,

BPB Publications.

5. Scott Robbert Ladd, TURBO C++ TECHNIQUES & APPLICATIONS, BPB

Publications.

 

Operating Environment

1. Ritchi, Operating Systems, BPB Publications.

2. James L. Peterson & Abraham S., OPERATING SYSTEM, Addison-

Wesley Publishing Company.

 

Data Structures

1. M.A., Weiss, Data Structures and Algorithm Analysis in C++. the

Benjamin/Cummings Pub. Co., Inc.

2. Scott Rober Ladd, C++ COMPONENTS AND ALGORITHMS, BPB

Publications.

 

Database Management System and SQL

1. Martin Gruber, UNDERSTANDING SQL, BPB Publications.

2. Sheldon M. Dunn x Base Cross Reference Handbook, First Authorised

Asian Edition 93, Tech. Publications Pvt. Ltd.

3. C.J. Data, DATABASE PRIMER, Adison Wesley.

 

Computer Network

1. A.S. Tanenbaum, Computer Network, Prentice Hall of India P. Ltd.

2. Williams Stalling, Data Communication and Networks, Prentice Hall of

India P. Ltd.

3. Hancock, Network Concept and Architectures, BPB Publications.

 

Reference Magazines

PC WORLD, COMPUTERS TODAY, PC QUEST, DATA QUEST, COMPUTER

WORLD.

 

Reference Manuals

OPERATING SYSTEM MANUAL, C++ COMPILER MANUAL