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  #1  
14th November 2014, 10:49 AM
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Previous year computer science solved question papers?

From where I can get the previous year computer science solved question papers of class 12th will you please provide me that??????????
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  #2  
14th November 2014, 02:02 PM
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Join Date: Apr 2013
Re: Previous year computer science solved question papers?

As you want to get the previous year computer science solved question papers of class 12th so, here I am providing you the same.







Here is an attachment for the previous year computer science solved question papers you can download that.


Here for you I am providing you the syllabus of the Computer Science:

Syllabus:

UNIT 1: OBJECT ORIENTED PROGRAMMING WITH PYTHON (50 theory + 41 practical) periods

REVIEW: Python covered in class XI

Concept of Object Oriented Programming: Data Hiding , Data Encapsulation, Class and object,
polymorphism, inheritance, advantages of Object Oriented Programming over earlier programming
methodologies
Classes: Defining classes(attributes,methods),creating instance objects, accessing attributes and methods,
using built in class attributes (dict,doc,name,module,bases), constructor(_ _init()_ _), _ _del()_ _ and _
_str()_ _ methods in a class, private attributes, importance of self, operator overloading with methods
Inheritance: Concept of base class and derived class, Single, mutilevel and multiple inheritance –
overriding methods, using super() in derived class to invoke _ _init()_ _ or overrriden methods of parent
class

UNIT 2: ADVANCE PROGRAMMING IN PYTHON (42 theory + 35 practical) periods
Linear List Manipulation:

Sequential allocation and address calculation, traversal, insertion of an
element in assorted list, deletion of an element from the list, searching (linear, binary), sorting
(insertion, selection, bubble)
Stacks (List Implementation): introduction to stack (LIFO operation), operations on stack (PUSH and
POP) and its implementation in Python
Converting expressions from infix to postfix notation and evaluation of postfix expression
Queues (List implementation) – introduction to Queue (FIFO) operations on Queue (INSERT and
DELETE) and its implementation in Python
Data File: Need for data file ,types of data file –text and binary, Opening and closing files – open(),
close(), file object, access modes (output,input,default), reading and writing a file read(), readline(),
readlines(), write(), file positions (seek(), tell()), renaming and deleting a file, writelines(), flush(),
Implementation of basic file operations on text and binary file in Python: creating/writing data into file,
reading and displaying data from file, searching for particular data from a file, insertion and deletion of
data from an already existing file, modification of data in file
195
Errors and Exceptions - NameError, IndexError, Typeerror, IOError, ImportError, ValueError,
EOFError.
Generator Function using yield

UNIT 3: DATABASES AND SQL (20 Theory + 20 Practical) Periods

Data base Concepts: Introduction to data base concepts and its need.
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, GROUPBY, HAVING,
ORDERBY;
SQL functions: SUM, AVG, COUNT, MAX AND MIN;
Obtaining results (SELECT query) from 2 tables using equi-join and Union
Note: Implementation of the above mentioned commands could be done on any SQL supported software
onone or two tables.

UNIT 4: BOOLEAN ALGEBRA (16 Theory + 0 Practical) Periods

Role of Logical Operations in Computing.
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, NOR)
Use of Boolean operators (AND, OR) in search engine queries.

UNIT 5: COMMUNICATION TECHNOLOGIES (16 Theory + 0 Practical) Periods

Evolution of Networking: ARPANET, Internet, Interspace
Different ways of sending data across the network with reference to switching techniques (Circuit and
Packet switching);
Data Communication terminologies: Concept of Channel, Bandwidth (Hz, KHz, MHz) and Data
transfer rate (bps, kbps, Mbps, Gbps, Tbps);
196
Transmission media: Twisted pair cable, coaxial cable, optical fiber, infrared, radio link, microwave link
and satellite link;
Network devices: Modem, RJ45 connector, Ethernet Card, Router, Repeater, Switch, Gateway, wifi card;
Network Topologies and types: Bus, Star, Tree, PAN, LAN, WAN, MAN;
Network Protocol: TCP/IP, File Transfer Protocol (FTP), PPP, SMTP, POP3, Remote Login (Telnet),
Internet Wireless/Mobile Communication protocol such as GSM, CDMA, GPRS, WLL,
Mobile Telecommunication Technologies: 1G, 2G, 3G and 4G
Protocols for Chat and Video Conferencing VOIP
Wireless technologies 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;
Introduction To Web services: WWW, Hyper Text Markup Language (HTML), eXtensible Markup
Language (XML); Hyper Text Transfer Protocol (HTTP); Domain Names; URL; Website, Web browser,
Web Servers; Web Hosting, Web Scripting - Client side (VB Script, Java Script, PHP) and Server side
(ASP, JSP, PHP), Web 2.0 (for social networking)
Class XII (Practicals) – Python
Duration: 3 hours Total Marks: 30
1. Programming in Python 12
One programming problem in Python to be developed and tested in Computer during the examination. Marksare
allotted on the basis of following:
Logic : 7 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
• String
• Lists/Tuples
• Dictionary
• File Operations
2. SQL Commands 05
Five Query questions based on a particular Table/Reaction to be tested practically on Computer during
theexamination. The command along with the result must be written in the answer sheet.
3. A digital circuit design (after reduction using K-map) to be given during the examination. The question must
be written in the answer sheet 02
4. Project Work 05
The project has to be developed in Python language with Object Oriented Technology.
(The project is required to be developed in a group of 2-4 students)
197
• Presentation on the computer
• Project report (Listing, Sample, Outputs, Documentation)
• Viva
4. Practical File 03+013
Must have minimum 20 programs from the following topics
• Lists (general, stack, queue)
• Dictionary
• Tuple
• File Handling
• Programs based on Object Oriented Concepts
• 15 SQL commands along with the output based on any table/relation
5. Viva Voce 02
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 isto
consolidate the concepts and practices imparted during the course and to serve as a record of competence.
1.2 A group of 2-4 students as team may be allowed to work on one project.
2. Project content
2.1 Project for class XI can be selected from the topics mentioned in the syllabus or domains on the
similarlines.
2.2 Project for class XII should ensure the coverage of following areas of curriculum:
a. Problem Solving
b. Object Oriented Programming in Python
c. File Handling
Theme of the project can be
• Any Scientific or a fairly complex algorithmic situation
• Quizzes/Games
• Tutor/Computer Aided Learning Systems
2.3 The aim of the project is to highlight the abilities of algorithmic formulation, modular programming,
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
portrayProgramming Style, Structured Design, Minimum Coupling, High Cohesion, Good
documentation of thecode to ensure readability and ease of maintenance.
OR
1 mark is for innovating while developing programmes.
198
Class XII (Theory) - C++
Duration: 3 hours Total Marks: 70
Unit No. Unit Name Marks
1. OBJECT ORIENTED PROGRAMMING IN C++ 30
2. DATA STRUCTURE 14
3. DATABASE MANAGEMENT SYSTEM AND SQL 8
4. BOOLEAN ALGEBRA 8
5. COMMUNICATION TECHNOLOGIES 10
Attached Files
File Type: pdf Computer Science Solved Question Papers.pdf (368.7 KB, 189 views)


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