CBSE Class 12 Computer Science Syllabus & Marks Distribution

Computer Science

Allocation of unit-wise marks of Computer Science of CBSE Class 12

Unit No.  Unit Name  Marks
 1  OBJECT ORIENTED PROGRAMMING IN C  30
 2  DATA STRUCTURES  14
 3  DATABASES AND SQL  08
 4  BOOLEAN ALGEBRA  08
 5  COMPUTER NETWORKS  10

CBSE Class 12 Science: Computer Science Syllabus

Click here for the Latest Syllabus for 2016-17 CBSE Class 12 Computer Science

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UNIT 1: OBJECT ORIENTED PROGRAMMING IN C

REVIEW: C covered In Class -XI

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), 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 Protected 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 referential 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 fromINFIX 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/DECIMAL, CHARACTER/VARCHAR/VARCHAR2, 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;Obtaining results (SELECT query) from 2 tables using equi-join, Cartesian Product and Union

Note: Implementation of the above mentioned commands could be done on any SQL supported software on one or two tables.

UNIT 4: 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, Idem potent 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 minimization of Boolean expressions (up to 4 variables);

Application of Boolean Logic:Digital electronic circuit design using basic Logic Gates (NOT, AND, OR, NAND, NOT)

Use of Boolean operators (NOT, AND, OR) in SQL SELECT statements Use of Boolean operators (AND, OR) in search engine queries.

UNIT 5: COMMUNICATION AND OPEN SOURCE CONCEPTS

COMMUNICATION TECHNOLOGIES

Evolution of Networking: ARPANET, Internet, Interspace Different ways of sending data across the network with reference to switching techniques (Circuit,Message and Packet switching)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

Network Topologies and types: Bus, Star, Tree; PAN, LAN, WAN, MAN
Network Protocol: TCP/IP, File Transfer Protocol (FTP), PPP, Remote Login (Telnet), Internet Wireless/Mobile Communication protocol such as GSM, CDMA, GPRS, WLL, 1G, 2G and 3GElectronic mail protocols such as SMTP, POP3Protocols for Chat and Video Conferencing VoIP protocols such as Wi-Fi and WiMax Network Security Concepts:Threats and prevention from Viruses, Worms, Trojan horse, Spams Use of Cookies, Protection using Firewall;India IT Act, Cyber Law, Cyber Crimes, IPR issues, Hacking.

WebServices:

WWW, Hyper Text Markup Language (HTML), eXtensible Markup Language (XML); Hyper Text Transfer Protocol (HTTP); Domain Names; URL; Protocol Address; Website, Web browser, WebServers; Web Hosting, Web Scripting - Client side (VB Script, Java Script, PHP) and Server side
(ASP, JSP, PHP), Web 2.0 (for social networking)Open Source Concepts Open Source Software, Freeware, Shareware, Proprietary Software, FLOSS/FOSS, GNU, FSF, OSI





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