Monday, 16 July 2012

Welcome

Wednesday, 23 May 2012

News

CONGRATULATION TO STUDENTS SELECTED IN IIT DAV CENTENARY PUBLIC SCHOOL,NARELA,DELHI, Nikhil Sharma (A.I.R-1829) and Jatin Goel (A.I.R-4536) ,have qualified IIT JEE,2012 examination.

summer holidays homework -(class xii sc.)

Monday, 21 May 2012

summer holidays homework(class XII COMM.)

summer Holidays Homework(Class X)

summer Holidays Homework(class IX)

summer holidays homework (classVIII)

Sunday, 20 May 2012

summer Holidays Homework (Class VII)

Summer Holidays Homework (Class VI)

summer holidays homework (classV)

summer holidays homework (class IV)

summer holidays homework for class III (2012)

Saturday, 19 May 2012

summer holidays homework class ii

Friday, 18 May 2012

summer holidays Homework(Ist Class)
Hindi holidays Homework for class-Ist

summer holidays Homework(UKG)-2012

Summer Vacation Holidays Homework -2012(LKG)

D.A.V. CENTENARY PUBLIC SCHOOL

SECTOR B-4, POCKET – 5, DDA PROJECT

NARELA, DELHI-110 040.

HOLIDAYS HOME WORK

CLASS - L.K.G. (2012-2013)

ENGLISH : Language Listening, Speaking and reading & writing skills.

Stories : Narrate imaginative stories with some message to your child for eg. good habits and good manners, Narrate the following in English and Hindi both.

1. Thirsty Crow

2. Greedy Dog

Encourage your ward to make words beginning with the letters, a,b,c,d, e and f with the sounds.

a - apple, aeroplane, ant, axe ……… ………

b - ball, bell, basket, balloon, bat ……… ……..

c - cat, car, cake, candle …….. …….

d - doll, duck, drum ..…… …….

e - egg, elbow ……….. ……

Thinking Skills :- Give your child the opportunity to think - (1) Encourage your child to make simple comparison between big/small.

(2) What is missing ? What is extra ?

Activity : Show your child four objects in a tray. Remove or add one object. Ask your child to think what is missing or extra ?

English : a,b,c,d,e, f (5 times)

G.K. (1) Children should know their telephone no. and home address.

(2) Make them learn how to button their shirt.

(3) Learn Gayatri Mantra

Contd…….2/-

- 2 -

Rhymes Book : Book pages to be done from rhymes book :

1,4,5,6,7,10,15,18,30, 33,36,39,48,52,53

Note : Let your child learn the small alphabets by phonetic sound –

a b c d e f g h i

j k l m n o p q r

s t u v w x y z

1. Flash cards - 2 fruits, 2 vegetables, 2 Means of Transport, 2 flowers

Note : Try to involve your ward in cutting, pasting and colouring work in flash cards.

☻ Flash cards can be made by cutting a sheet (Mount Board) into a square of 6” by 6” then paste pictures. You need to make one picture on one card. The picture should be bold and clear.

Let’s Be Creative :

1. Make 1 stick puppet of any fruit

2. Make a pencil stand with the help of a tin, bangles, ribbon, straw mirror ball etc.

3. Make any 1 animal mask.

Note : Send the complete Holidays Home Work on the first working day.

summer holidays homework (lkg)-2012summer holidays -lkg

Summer holidays homework 2012 (CLASS VIII)

Holidays Home work for class- VIII

Subject- English

Draw a picture of your room. Now write about the changes/improvements your parents wish to make in your room as well in yourself.

Write some general complaints that you have against your parents. Make a list of the common ones.

Read about the life and work of some ordinary people doing extra ordinary work for the society. Now write about their life and work (any two).

Learn the complete exercise of :-

(i) The Three questions.

(ii) Granny Tree climbing

(iii) The fun they had.

Revise all the tenses.

Read any two stories written by Ruskin Bond.

(i) An island of trees.

(ii) A bond with the mountain.

(iii) The India I love.

Write the summary and character sketch of any 2 characters of the stories.

v Write the following:-

v Notices:-

1. You are the warden of the chhatbir zoo. You have noticed that the visitors often feed the animals with the snacks they bring along. The children also tend to tease the animals and throw waste all over the place. Write a notice in about 50 words informing the visitors that they should refrain from doing so or their action will be panelized.

2. You are Roshan Ghai, captain of the school cricket team. The principal of your school has asked you to form a junior cricket team. Write a notice in about 50 words for the school notice board inviting the students of class V,VI,VII,to come for trial to the school cricket ground on May, 25 at 10:30 am on the basis of which you will form the team.

3. Mount Carmel school, Gurgaon plans to organize a Diwali Mela in the school premises. Suppose you are Amrita Saini , the head girl .put up a notice for the school house captains and vice captains inviting them to attend a meeting to discuss the arrangement for mela and to finalize the date.

v Informal letters

1. Recently you spent a week with your grandmother who lives in another city/village. Write a letter to thank her, describing briefly how much you enjoyed your stay with her and why. You are vartika/venkat.

2. Your friend has failed in the first terminal exams .he/she is feeling very low. Write a letter enquiring how it happened. While expressing your sympathy and concern for him /her, you should encourage her/him to take the failure in her/his stride and to work hard for the next examinations.

3. Pooja attended a lecture on how the advantages that we have achieved in the field of science and technology if not properly used can harm us. She made a few notes. She later decided to write a letter to the editor of national daily highlighting the dark side of scientific progress

Write a letter in about 120 words with the help of the notes given below.

SOURCES OF TOMINS	ILLNESSES
Junk food	Increase cholesterol/cause obesity
Pesticides/chemicals and other artificial measures to ripen fruits and promote yield from crops.	Affects nervous system and immune system, asthma, allergies, infertility, child behaviour, disorder including learning disabilities mental retardation, hyperactivity etc.
Toxic in soft drinks.	Weakens immune System causes autoimmune disorder.

v Article Writing

1. Tradition against modernity.

2. The concept of fun-filled vacation has changed.

3. Simple living high thinking.

4. Success comes to those who will and dare.

v For the display board ,prepare any two topics out of the following (with pictures)

· Tolerance

· Global warming

· Degradation of values

· India’s victory in world cup cricket

v Write attractive and colourful-

A. Short stories

B. Quotations

C. Poems

D. Posters

E. Slogans

(With pictures and on an A-4 sized sheet)(Any two).

Holidays Home work for class- VIII

Subject- English

Draw a picture of your room. Now write about the changes/improvements your parents wish to make in your room as well in yourself.

Write some general complaints that you have against your parents. Make a list of the common ones.

Read about the life and work of some ordinary people doing extra ordinary work for the society. Now write about their life and work (any two).

Learn the complete exercise of :-

(i) The Three questions.

(ii) Granny Tree climbing

(iii) The fun they had.

Revise all the tenses.

Read any two stories written by Ruskin Bond.

(i) An island of trees.

(ii) A bond with the mountain.

(iii) The India I love.

Write the summary and character sketch of any 2 characters of the stories.

v Write the following:-

v Notices:-

v Informal letters

Write a letter in about 120 words with the help of the notes given below.

SOURCES OF TOMINS	ILLNESSES
Junk food	Increase cholesterol/cause obesity
Pesticides/chemicals and other artificial measures to ripen fruits and promote yield from crops.	Affects nervous system and immune system, asthma, allergies, infertility, child behaviour, disorder including learning disabilities mental retardation, hyperactivity etc.
Toxic in soft drinks.	Weakens immune System causes autoimmune disorder.

v Article Writing

1. Tradition against modernity.

2. The concept of fun-filled vacation has changed.

3. Simple living high thinking.

4. Success comes to those who will and dare.

v For the display board ,prepare any two topics out of the following (with pictures)

· Tolerance

· Global warming

· Degradation of values

· India’s victory in world cup cricket

v Write attractive and colourful-

A. Short stories

B. Quotations

C. Poems

D. Posters

E. Slogans

(With pictures and on an A-4 sized sheet)(Any two).

Summer holidays homework 2012 (Class X)

DAVCPS NARELA-2012-13

Holiday’s Homework

Class-X

Subject-science

· Find out ingredients of face powder,nail polish ,lipsticks,boot polish,Shampoo,hair cream,cold creamand perfumes.

· Ammonia is used in a lot of chemicals in beauty parlours in many products like hair colour,bleach etc.

Find out their harmful effects on Skin/body/hair

Soap having pH equal to 7 is best for skin.Find out Dove Soap has Ph equal to 7 or more than 7.Compare it with other bathing soaps.

Talk to yours neighbours and find out which which soap is popular and find out its pH.

Talk to dermatologist which soap is best for skin.

This should be done either by

“ power point presention”

Graphical represention of “Soap vs pH”

Bar chart of “pH vs Soap”

MATHS :

Learn tables up to 25.

1. Design a crossword puzzle with mathematical terms.

2. Compare performance of two cricket teams in final IPL match.

3. Do 20 MCQ each from squares & squares roots, cube & cube roots ,Algebraic identities.

4. Revise above chapters for test.

5. Write divisibility tests by 2,3,4,5,7,9,10,11.

6. PROJECT: Life history of two Indian Mathematicians.

7. Prepare a model on Algebraic Identities.

8. Define following terms: Adjacent angles, Altitude ,Arc ,chord ,secant, median , complementary angles, supplementary angles, transversal,dividend,divisor,variable,centroid,orthocenter,intercept.

FUN TIME

1 Solve : USA + USSR = PEACE I .e .replace letters by digits so that this becomes a true equation.

2 In a party everybody shakes hands with everybody else & there are 36 handshakes in all,how many persons are there in the party ?

3 Express all numbers from 1 to 50 as the sum of atmost 4 square numbers.

4 The smallest number which can be expressed as the sum of two cubes in two different ways is Ramanujan number 1729.Find 4 more numbers with same property.

5 If we replace A by C,B by D,…,X by Z, Y by A , Z by B,what will following become?

I LOVE MATHEMATICS.

    MATHEMATICS IS FUN.

    PROBLEM SOLVING IS THE HEART OF MATHEMATICS.

                                       ASSIGNMENT

Q. Find the least number which must be subtracted from the following numbers to make them a perfect square?

1. 2361 ans. 57

2. 194491 ans. 10

Q. Find the least number which must be added to the following numbers to make them a perfect square?

1. 5607 ans. 18

2. 37460 ans. 176

Q. Find the greatest number of 5 digit which is a perfect sqare?

Ans. 99856

Q. Find the least number of 4 digit which is a perfect square?

Ans. 1024

Q. The cost of levelling and turfing a square lawn at Rs. 2.50 per m square is RS. 13322.50 .find the cost of fencing it at Rs. 5 per metre?

Ans. 1460

Q. Find the square root of of 12.0068 correct to four decimal places?

Ans. 3.4651

Q.Find the square of 11 correct to five decimal places?

Ans.3.31662

Q. The area of a square field is 325 m square. Find the approximate length of one side of the field?

Ans. 18.030

Q. Find the length of a side of a sqare, whose area is equal to the area of a rectangle with sides 240 m and 70 m?

Ans. 129.6

Q. Find the cubes of :

1. -13/8 Ans. -2197/512

2. 0.08 Ans. 0.00512

Q. Find the cubes root of each of the following natural number :

1. 2744 Ans. 14

2. 35937 Ans. 33

Q. Three numbers are in ratio 1:2:3. The sum of their cubes is 98784 . find the numbers.

Ans. 14,28,42

Q.Find the cube root of each of the following rational numbers :

1. -125/729 Ans. -5/9

2. 10648/12167 Ans. 22/23

Q. The volume of a cubical box is 474.552 cubic metres . find the length of each sides of the box?

Ans. 7.8 m

Q. Use diagonal method to find squares of 89, 68, 854.

Ans.7921,4624,729316.

Q. Find 10 rational numbers between 3/5 & 3/4.

Q . Divide sum of - 13/5 &12/7 by product of - 31/7 & - 1/2

Ans -2/5

Q The area of square field is 121/4 sq.m.Find length of side of square.

Ans. 11/2 m.

Q. The cost of 7/3 metres of cloth is Rs 301/4,Find cost of cloth per metre.

Ans.32.25

Q. Simplify

(a) (5x + 3 ) (x – 1) (3x – 2)

(b) ( x+ 2) (5x – 3) – (2x +5 ) (4x- 3)

(c) a (b- c) –b(c-a) –c (a-b)

Q.Evaluate using identities

(a) 102 X 106

(b) 34 X 36

(c) 103 X 96

(d) 9.8 X 10.2

Ans.10812,1224, 9888, 99.96.

Q. If 2x + 3 = 14 & 2x – 3y = 2, find xy.

Ans. 8

Q. Find 3x(2x- 7) – 3(x – 4)- 63 for x = -2.

Ans. 21

Q. if x+1/x=12 find x-1/x

Ans. Root 140

Q. if x+1/x =9 find x⁴+1/x⁴

Ans. 6239

Q.factorise :

1. 7a(2x-3) +3b (2x-3) Ans. (7a+3b)(2x-3)

2. ax+bx+ay+by Ans. (a+b)(x+y)

3. x⁴-81y⁴ Ans. (x-3y)(x+3y)(x²+9y²)

4. a²+2ab+b²-16 Ans. (a+b+4)(a+b-4)

5. 6xy-4y+6-9x Ans. (2y-3)(3x-2)

Q. write unit digit of cube of following numbers :

1. 3375 Ans. 5

2. 1728 Ans. 2

3. 729 Ans. 9

4. 4913 Ans. 7

Q. find area of rectangular box whose length and breadth are 4ab and 5cd respectively

Ans. 20abcd

Thursday, 17 May 2012

Summer Holidays HomeWork computer Science(III-XII) 2012

(Holidays Homework)-2012

ClASS –III Subject:- Computer Sc.

Ø Learn and Prepare Lesson-1 for class Test in July.

Ø Project:-

Make a model using cardboard, coloured sheet and other required material according to your roll numbers

Roll no.1-5 Monitor Roll no.11-15 Speakers

Roll no. 16-20 Mouse Roll no. 6-10 Keyboard

Roll No. 21-25 CPU Roll No. 26-30 Headphones

Roll No. 31-35 Web Camera Roll No. 36-40 CD

Roll No. 40 onwards MicroPhone

Write five lines about your project on coloured A4 sheet and also learn for ‘Show and Tell Competition’.

Ø Activity:- Solve the following crossword search using the help box.

Help Box:-

(Holidays Homework)-2012

ClASS –IV Subject:- Computer Sc.

Ø Learn and Prepare Lesson-1 for class Test in July.

Ø Project:-

Collect the pictures related to topics mentioned below and make a collage on full Cartridge sheet with information.

Roll no.1-15 Applications (uses) of computer

Roll no. 16-30 Various Memory Devices

Roll No. 31-45 Output Devices

Roll No. 45 Onwards Input Devices

Ø Activity:- Solve the following crossword search using the help box.

Computer Wordsearch

Help Box:-

BARCODE COMPACTDISK DIGITALCAMERA HEADPHONES

JOYSTICK KEYBOARD LIGHTPEN MONITOR

PRINTER PROJECTOR SCANNER SOUNDCARD SPEAKERS TOUCHSCREEN WEBCAM MOUSE

(Holidays Homework)-2012

ClASS –V Subject:- Computer Sc.

ØLearn and Prepare Lesson-1 for class Test in July.

Ø Project:-

Collect the pictures and paste them in A4 Pastel sheet

Roll no. 1-10 Memory Devices

Roll no. 11-20 Output Devices

Roll No. 21-30 Different Types of software

Roll No. 31-45 Onwards Types of Computer

Assignment:-

Do this assignment in your Computer notebook with heading holidays Homework (2012)


Q1. Another name for computer programs and information.

Output

Process

Software

CPU

Q.2) The part of a computer that allows the user to view information on a screen.

Mouse

RAM

C.	Motherboard

Monitor

Q.3)	This part sends signals to other parts of the computer to tell them what to do.

CPU

Speakers

Icon

D.	Hard drive

Q.4) This is a flat input device that usually sits in front of the monitor.

Keyboard

Tower

Mouse

Laptop

Q.5)	This memory is for short term storage and is lost when the computer is turned off.

Icon

CPU

C.	Hard drive

RAM

Q.6) A name for a small picture or image representing a folder or a program.

Graphic

Icon

Software

Desktop

Q.7)	This computer is small enough to fit on your lap and is very portable.

Laptop

Tower

Computer

D.	Motherboard

Q.8)This part allows the user to hear information from the computer.

Monitor

Software

Input

Speaker

Q.9) Another name for all the parts of a computer.

Process

Hardware

Monitor

D. Software

Q.10) This input device will allow the user to move the pointer on the screen.

Mouse

Speaker

Icon

Output

Q.11) This device allows the user to record or send their voice into the computer.

Monitor

B.	Microphone

Output

Speaker

Q.12) This part does the real calculation, moving and processing of information.

CPU

IBM

RAM

D.	Hard Drive

Q.13)	This is a type of computer that sets on a table or desk.

Keyboard

Laptop

C.	Hard Drive

Desktop

Q.14) What are the 3 main things a computer does?

Input

Save

Output

Process

Reboot

Q.15) This part stores data, programs, settings, and the operating system while the computer is off. While it is on, it spins inside the computer reading and writing data.

CPU

B.	Motherboard

RAM

D.	Hard Drive

Q.16)	Select 2 input devices

A.	Microphone

Printer

Keyboard

Speaker

Q17. Select 2 output Devices

Scaner

Speaker

Printer

D.	Microphone

E.	Monitor

Q.18)	Name of an Operating System

Dell

B.	Windows XP

Yahoo

D.	Microsoft

(Holidays Homework)-2012

ClASS –VI Subject:- Computer Sc.

ØLearn and Prepare Lesson-1 for class Test in July.

Ø Project:-

Draw and Colour the Opening Screen on the given topic according to your Roll No. on cartridge sheet

Roll no. 1-10 Windows Explorer with lable the components

Roll no. 11-20 Microsoft Word

Roll no.21-30 Ms-Paint

Roll no. 31-40 Microsoft- Excel

(Roll no. 41 Onwards) Microsoft -PowerPoint

Assignment:-

Do this assignment in your Computer notebook with heading holidays Homework (2012)

Q1. Write the name of any two Operating System.

Q2. Which software allow us to view all the files and folders which are saved in a computer.

Q3.Write all the options of File Menu option..

Q4. In which menu options cut and copy options are available?

Q5. Write all the modes to views of Explorer Window.

Q6. Name the view that displays the contents of any drive/folder arranged as small icons in columns?

Q7. Name the view that displays the contents of a drive /folder with details, such as their size, type and date modified?

Q8. How many panes are available in Explorer Window?

Q9. What does top level display?

Q10. Name the process in which, by clicking the minus (-) sign, it changes to plus (+) sign and contents of the folder get hidden.

Q11. Name the process in which by clicking the plus (+) sign, it changes to minus (-) sign and folder contents get displayed.

Q12. Write the shortcut keys to cut the selected file/folder.

Q13. Write the shortcut keys to copy the selected file/folder.

Q14.Write the shortcut keys to paste the selected file/folder.

Q15. What is the extension of Ms-Paint file?

Q16. What is the extension of Ms-Word file?

Q17. What is the extension of Ms-Powerpoint Presentation?

(Holidays Homework)-2012

ClASS –VII Subject:- Computer Sc.

ØLearn and Prepare Lesson-1 for class Test in July.

Ø Project:-

Make a PowerPoint Presentation on the given topics and submit it on E-mail ID with your class, section, rollno and name. E-mail ID is davcpnrl_40@hotmail.com

Roll no. Topic

1-8 Types of Computer

9-16 IPL Matches

17-24 Applications of Computer

25 –32 Famous Personalities in the field of Computer

33- 40 Input –Process-Output-Memory Devices

41 onwards Applications of Internet

Ø Assignment:- Do this assignment in your computer notebook with heading holidays Homework. (2012)

1. Mnemonic a memory trick is used in which of the following language?

a. Machine language b. Assembly language

c. High level language` d. None of above

2. The translator program used in assembly language is called

a. Compiler b. Interpreter

c. Assembler d. Translator

3. Resemble to commonly used English language:-

a. Machine language b. Assembly language

c. High level language d. None of the above

4. Which of the following is called low level languages?

a. Machine language b. Assembly language

c. Both a and b d. None of above

5. A compiler is a translating program which

a. Translates instruction of a high level language into machine language

b. Translates entire source program into machine language program

c. It is not involved in program’s execution d. All of above

6. Which of the following is machine independence program?

a. High level language b. Low level language

c. Assembly language d. Machine language

7. Which statement is valid about interpreter?

a. It translates one instruction at a time b. Object code is saved for future use

c. Repeated interpretation is not necessary d. All of above

8. CD-ROM is a

a. Semiconductor memory b. Memory register

c. Magnetic memory d. None of above

9. Which of the following is a primary storage device?

a. Magnetic tape b. Magnetic disk

c. Optical disk d. None of above

10. Which of the following is a secondary memory device?

a. Keyboard b. Disk

c. ALU d. All of the above

11. The difference between memory and storage is that memory is … and storage is …

a. Temporary, permanent b. Permanent, temporary

c. Slow, fast d. All of above

12. The first electronic computer in the world was

a. UNIVAC b. EDVAC

c. ENIAC d. All of above

c. BCD d. All of above

Holidays Home work -2012

Class - VIII

Subject : Computer Sc.

Ø Revise & Learn Ch- 1 . Prepare the chapter for Test in July.

Ø Activity :

Create a web Page showing the following information .

Types of Pollution

Air Pollution

Contamination of air due to the exhaust of vehicles, smoke from factories , fly ash from thermal plants or natural phenomena like volcano is known as air pollution.

Water Pollution

When toxic substances enter lakes, streams , rivers ,oceans and other water bodies, they get dissolved or lie suspended in water . This results in water pollution.

Write HTML code in the notebook. And also draw the web pag e in the notebook.

Ø Assignment :- Do this assignment in your computer notebook with heading holidays Homework. (2012)

1. Differentiate between web browser and web server.

2. How is the web page is different from home page visit home page and web page of any kids site and collect information .

3. Open the website www.nationalbalbhavan.nic.in.

Visit any of the 5 web pages and write their URLs.

4. Name different types of protocols and explain each of them.

5. What is a URL and defines its parts.

Ø Project : -

Roll no. Topic

1 – 15 Collect the information about different DAV Schools from the web using web browse Mozilla firefox

16-30 Visit the web site WWW.lic.in then find the content from the Home page of this

website.

31 On wards Visit the web site WWW.lic.in then collect the information on different Insurance

Plans available on different web pages of this websites.

Submit it to email –id (davcpnrl_40@hotmail.com) latest by 7^h July 2012.

(Holidays Homework)-2012

ClASS –IX Subject:- Computer Sc.

ØLearn and Prepare Lesson-1 for class Test in July.

Ø Project:-

Make a project using MS-Word on the given topics and submit it on E-mail ID with your class, section, rollno and name. E-mail ID is davcpnrl_40@hotmail.com

Roll no. Topic

1 – 10 News Letter (Front Page of News Paper in Column style)

11-20 Advertisement (Cosmetics Item / Any Electronic Items))

21-30 Brochures

30 -40 Bio- Data

40 Onwards Posters (Save Environment, Clean & Green Delhi, Save Water,

Do not use Plastic Bags,Save Electricity)

ØAssignment:- Do this assignment in your computer notebook with heading holidays Homework. (2012)

1.Where as a computer mouse over the table surface ,the trackball is

a)Stationary b)Difficult to move

c)Dragged d)Move in small stems

2. Which computer memory is used for storing programs and data currently being processed by the CPU?

a)Mass memory b)Internal Memory

c)Non-Volatile Memory d)PROM

3. Which of the following is a secondary memory device?

a)Keyboard b)Disk

c) Slow and Fast d)All of above

4. The difference between memory and storage is that memory is ……………….and storage is …………

a) Temporary,Permanent b)permanent,Temorary

c) Slow ,fast d)All of above

5. The first electronic computer in the world was

a)UNIVAC b)EDVAC

c)ENIAC d)all of above

6. Which was the computer conceived by Babage?

a)Analytical Engine b)Arithmetic Machine

c)Donald Knuth c)All of above

7. Microprocessor can be used to make

a)Computer b)Digital System

c)calculators d)All of above

8. A computer program that converts an entire program into machine language at one time is called a/an

a) Interpreter b) CPU

c) Compiler d) Simulator

9. MICR stands for

a) Magnetic Ink Character Reader b) Magnetic Ink Code Reader
c) Magnetic Ink Cases Reader d) None

10. CD-ROM stands for

a) Compactable Read Only Memory b) Compact Data Read Only Memory
c) Compactable Disk Read Only Memory d) Compact Disk Read Only Memory

11. ALU is

a) Arithmetic Logic Unit b) Array Logic Unit
c) Application Logic Unit d) None of above

12. WAN stands for

a) Wap Area Network b) Wide Area Network
c) Wide Array Net d) Wireless Area Network

13. ___________is the most powerful computer.

a) Mainframe Computer b) Super Computer

c) Laptop Computer d) None of the above

14. All processing of computer is done in

a) Monitor b) CPU

c) Keyboard d) RAM

15. RAM stands for

a) Random Access Memory b) Read Access Memory

c) Random Allowed memory d) Random Added Memory

(Holidays Homework)-2012

Subject - Computer

Class – X

Q1. FTP service is used for

a) Video Conferencing b) Remote login

c) File Transfer d) sending mails

Q2. The incoming mails are stored in

a) Outbox b) Inbox

b) Sent Box d) Trash

Q3. What is the term used for a machine that contacts a server for information?

a) Client c) master

b) Host d) ISP

Q4. HTML uses

a) Pre- specified tags c) User- defined tags

b) Tags only for linking d) fied tags defined by the language

Q5. World Wide Web

a) Is another name for the internet c) a collection of linked information

residing on computers connected by the internet

b) World wide connection for computers d) a collection of world wide

information.

Q6. Which language is used to create a web page ?

a) HTTP c) HTML

b) URL d) FTP

Q7. Which of these domains is restricted to qualified Organizations?

a) . com c) .org

b) .net d) .edu

Q8. A Search engine is a program to search for

a) Information c)web Pages

b) Web pages for specified index terms d) web pages for information using

specified search terms

Q9. What can you do with the internet?

a) Exchange information with friends . c) Access pictures , sounds, video clipping

b) Find divers perspective on issues from a global audience d) All of above

Q10. A popular service for sending or receiving mail on the internet is

a) The E-mail c) the google

b) The FTP d) none of the above

Q11. Which is the odd one out ?

a) FTP c) URL

b) TCP/IP d) HTTP

Q12. A web page is located using a

a) Universal Record Linking c) Universal Record Locator

b) Uniform Resource Locator d) Uniformly Reachable links

Ø Assignment :- Do this assignment in your computer notebook with heading holidays Homework. (2012)

1. Define the following terms:

a. ARPANET b. WWW

C Server d web server

2. What is a web page ?

3. How is a web portal different from websites?

4. What is meant by ISP ? Give examples of some ISPs.

5. Difference between a blog and a normal website.

6. What is the role of web server in the working of Internet?

7. What is a web page?

8. What is the Internet?

9. What is Modem?

10. What is the role of TCP/IP protocol in the working of the Internet?

Project :- Make a chart on the following topics according to your Roll No.

1-10 Different types of websites

11-20 Make a comparison chart of the features of a

web potal,blog and a web directory

21-30 Make a comparison chart of different types

of protocols

31-40 E-Reservation Steps for getting Railway or Air

ticket using any govt. e-reservation website

41 Latest Technologies used to transfer Data

Holidays Homework - 2012

Class - XI

(Comp. Sc.)

1. Question Bank :-

a) Define Software . Briefly define its types.

b) What is an IPO cycle?

c) Differentiate between Application software and system software give example.

d) Explain the need of Operating System.

e) Differentiate between Compiler and Interpreter.

f) How many magabytes make 1 terbyte?

g) What is compiler? How it is different from Interpreter?

h) Name two super computer designed by India.

i) What are the different types of computers? Expain each of them in detail.

j) Explain different generation of computers.

k) What is the difference between compiler and assembler?

l) Write about third generations and fourth generation of computer.

m) Suggest some comments (two) that can be added in following :

Program code:

Cin>>p;

Cin>>r;

Cin>>t;

Float si= p*r*t/100;

Cout<<”si= Rs. “<<si;

n) What is the difference between void main () and int main ()?
l) Identify the correct identifiers

(i)AS_G_D (ii) L wer (iii) student_name (iv) S.I. (v) %percentage

2. Write and Execute the following program in C++

a) To input marks of three Subject calculate total and print the percentage

of marks.

b) To generate the output on screen.

c) To enter the radius of circle and prints its area.

d) To enter the side of a square and prints its area.

e) To print volume of a cylinder.

f ) To Swap the two numbers using third variable.

g) To input the two numbers find the quotient and remainder of two numbers.

3. Do the complete Exercise on Page 182, 183 in assignment note book.

4. Learn L-1 & L-6 . Prepare it for first Unit test to be held in July.

5. Project :-

Prepare a Power Ponit Presentation on the following topic according to your Roll No.

(1) Types of Printer(1-10)

(2) Operating System(11-20)

(3) Internet(21-30)

(4) Input/Output Devices(31 onwards)

It should include minimum of 12-15 slides of content:-

(i) Title

(ii) Table of Content

(iii) Acknowledgement

(iv) Hardware & Software requirement

(v) Certificate

(vi) Inerfacing & Definition

(vii) Coding

(viii) Screening

(ix) Bibliography

· Submit CD of your presentation

· Submit Project file with Printouts.

Summer Holidays Homework(2012-2013)

Class –XI

Subject –Informatics Practices

Attempt all the questions in a separate holidays’ homework notebook

Question Bank :

Q1. Write full form of following :

MICR, OCR ,TB ,OMR ,PB , ALU, DMP,VDU

Q.2 Draw a labeled diagram of functional components of a computer.

Q.3.What function is performed by ALU and CU each.

Q.4. Compare compiler and interpreter.

Q.5 What is the basic function of memory? What is the measuring unit of memory?

Q.6 Arrange the following printers in terms of speed and performance:

Dot Matrix Printer , Laser printer, Desk jet printer

Q.7 Identify the input and the output devices :

Scanner, printer Bar code reader smart card reader, plotters, Screens web camera

Q.8 What is function of a web camera?

Q.9 What is address bus? What is data bus.

Q.10 Name the two types of computer memory. Also give two points of differences between the two.

Q.11 Name the system software which loads all the program ,coordinates the input and output devices .

Q.10. What is function of BIOS.

Q.11 Name some of the commonly used operating systems

Q.12 What is difference between compiler and interpreter?

Q.13 What is a word processor .Give examples.

Q.14 What are utility softwares. Give examples.

Q.15 What is compression utility.

Q.16. What is need of operating system .

Q.17 What are functions of operating system.

Q.18.What is device driver .What is need of it?

Q.19 What is backup utility.

Q.20 What is antivirus software ? Name any two .

Q.21 What is purpose of text editor? Name any two.

Q.22 What do you mean by presentation software. Give two examples.

Q.23 What do you mean by spreadsheet software. Give two examples.

Q.24 What is a communication bus?

Q.25 What is purpose of data bus. How many wires it has?

Q.26 What is purpose of address bus. How many wires it has?

Q.27 What is purpose of control bus. How many bits can it transmit ?

II Revise and learn chapters done in the class. Complete all the assignments given in the class .

Project Work

Make a powerpoint presentation on any on topic :

i) Types of customised application software

ii) Operating system

iii) Ports and types of ports

iv) Communication bus and its type

Note : Project is to be mailed to the e-mail id davcpnrl_40@hotmail.com latest by 20^th June2012.

Your Project should cover the following specifications :

· Project Title(name of project, rollno, class)

· Acknowledgement

· Certificate

· Introduction to project

· Software and hardware required(Operating system also)

· Project coding

· Project screens(output)

· Bibliography

III Make a chart on the following topics(any one)

i) Types of software

ii) Application software

iii) System software

Summer Holidays homework(2012-2013)

Class –XII

Subject –Informatics Practices

Question Bank :

Programming Language - JAVA

Q.1 What is procedural programming ?How is it different from object oriented programming? Q.2 What is a class ? What is an object ? Give examples ?

Q.3 What is Inheritance? What is need of Inheritance ?

Q.4 Compare exit controlled and entry controlled loop.

Q.5 What is use of presence of break in switch statement?

Q.6.What will be output of following code segment :

int num=20;

if (num==20)

l1.setText(“equals”)

else

l1.setText(“not equal”);

Q.7 What is output of following code :

jTextField1.setText(“Java”\n”Object “\t”Programming”\n);

Q.8 How many times the following loop is executed :

for (int a=50; a>=0; ++a) { l1.setText(a); }

Q.9 Convert the following into equivalent switch case :

int a=Integer.parseInt(t1.getText());

if (a==1)

l1.setText(“One”);

else if (a==2)

l1.setText(“Two”);

else if (a==3)

l1.setText(“Three”);

else

l1.setText(“Four”);

Q.10. Name any two native classes in Java and also name one function of each.

Q.11 How is data abstraction.How class in JAVA implement sit.

Q.12 What is data encapsulation ? Show how a class implements it.

Q.13 Compare do while and while loop.

Q.14What is use of default in switch statement?

Q.15.What will be output of following code segment :

int x=10;

if (x>=10)

l1.setText(“Allowed entry ”)

else

l1.setText(“Not allowed”);

Q.16What is output of following code :

jTextField1.setText(“Informatics\tObject \nProgramming\n”);

Q.17 How many times the following loop is executed :

for (int a=100; a>=0; ++a) { tl1.setText(a); }

Q.18 Convert the following into equivalent switch case :

int x=Integer.parseInt(t1.getText());

if (x==100)

l1.setText(“Hundred”);

else if (x==200)

l1.setText(“Two Hundred”);

else if (x==300)

l1.setText(“Three Hundred”);

else

l1.setText(“Invalid”);

Q.19. Name and also give purpose of any two functions in Java that belong to two classes?

Q.20. Name the control to which the following methods belong to .Also explain the following methods.

i) is Selected() ii)setEnabled()

HOTS :

Q1. While working in Net beans, Rajmeeta included a list box in the form. Now she wants the list of her` friends names to be displayed in it. Which property of listbox control should she used to do this?

Q2. What is the purpose of default clause in a switch statement?

Q3. How many times will each of the following loop execute? Which one of these is an entry controlled loop & which one is an exit controlled loop?

Loop 1

int sum 0, i=5;

{sum += i; i++ ; } while ( i<5);

Loop 2

int sum 0, i=5;

while (i<5)

{sum += I ; i++ ; }

Q4. What will be the content of jTextfield1 after executing the following code:

int num=6;

num=num+1;

If (num>5)

jTextfield1.setText(Integer.toString(num));

else

jTextfield1,settext(Integer.toString(num+5));

Q5.What will be the contents of jTextArea1 after executing the following statement;

jtextarea1.setText(“object\n oriented \t programming”);

Q.6 Rewrite the following program code using switch statement :

if (d==1 )

day=”Monday”;

else

if (d==2)

day=”tuesday”;

else if (d==3);

day=”wednesday”;

else

if d=”-“;

day=”thursday”;

Q7.The following code has some errors (s). rewrite the correct code underlining all the corrections made:

int i= 2 ; j = 5 ;

while ( j > i)

{j Textfield1.getText(“j is greater”) ;

j-- ; ++I ; }

Joptionpane.showMessageDialog(“Hello”) ;

Q8.What will be the contents of jTextfield1 and jTextfield2 after executing the following code :

string s = “sun micro system”;

jTextfield1.setText(s.length() + “ ”);

jTextfield2.setText(s.toLowerCase());

jTextfield2.setText(s.toUpperCase());

jTextfield2.setText(s.concat(“**”));

Q9. Glamour garment has developed a GUI application for their company as shown below :

The company accept payments in 3 mode – cheques , cash and credit cards. The discount given as per mode of payment is as follow.

Enter bill amount

DISCOUNT

Cash

Credit

Cheque

discount

Discount amt Net

a) If the bill amount is more than 15000 then the customer gets an additional discount of 10% on bill amount

b) Write the code to make the textfields for discount (named txtDisc) and net amount (named txtnetamt) uneditable.

c) Write code to do the following :

When “calculate discount”button is clicked the discount should be calculate as per the given criteria and it should be displayed in the discount textfield. Calculate net amount button(named btn calcnet amt)should also be enable.

ii) When”calculate net amount “button is clicked the net amount should be calculated and it should be displayed in net amount textfi3eld.

Project Work

System –Student information system, banking, payroll system

ATM ,Shopping Mall ,NDPL billing ,Hotel Reservation,

Data collection and analysis :

Choose any system a your project for XII (a batch of three maximum)

· Collect data about the system (bills,reports,register)

· Analyse the inputs and outputs

System development (coding):

· Create the tables in database with appropriate datatypes of field (Minimum two tables).

· Design form (at least four) for the screens

Note : Note : Project is to be mailed to the e-mail id davcpnrl_40@hotmail.com latest by 20^th June2012.

Your Project should cover the following specifications :

· Project Title(name of project,rollno, class)

· Acknowledgement

· Certificate

· Introduction to project

· Software and hardware required(Operating system also)

· Project coding

· Project screens(output)

· Bibliography

Summer Holidays homework(2012-2013)

Class –XII

Subject – Computer Science

Question Bank (HOTS) :

Programming Language - C++

Q.1What is an abstract class ? How is it different from a concrete class?

Q.2 What is OO Paradigm? How is it different from Procedural Programming Paradigm?

Q.3 What is polymorphism ?Give an example in C++ to show how it is implemented in C++?

Q.4 What is inheritance? Give an example in C++ to show how it is implemented in C++?

Q.5 What are the advantages of OOP over traditional programming approach?

Q.6 What are the disadvantages of using OOP?

Q,.7 What is concept of simplifying a real worlds concept into essential elements called in OOP?

Explain this feature?

Q,.8 What is most fundamental approach of combining data and its associated operations called in C++.

Explain this feature?

Q.9 What is a class? What is need of classes in C++?

Q.10 Which functions in classes in C++ are inline by default. What is significance of these functions?

Q.11.What happens if no constructor is provided by the user in a class .

Q.12 When is memory allocated to a constructor?

Q.13 Reusability of classes is one of the major properties of OOP. How is it implemented in C++?

Q.14 Define a class hotel with the following specifications :

Private members :

Roomno integer

Name string

Charges_day float

No_of_days integer

Compute() -To calculate and return the total charges as charges_day * No_of_days

Public members :

Getit() -to enter the data members

Showit() to show the data member

A constructor function to initialize the data members.

Q.15 Define a class Stock with the following specifications :

Private members :

Itemno integer

Item Name string

Price,qty,total ,discount float

Compute() -To calculate and return the total .Find discount as

If qty >=50 discount=10%on total amount

If qty<50 discount =nil

Public members :

Getit() -to enter the data members

Showit() -to show the data member

A constructor function to initialize the data

Q.16 CONSIDER a class Item with the following specifications :

Class Item

{ Private :

int Ino ;

char IName[25];

float Price

Public:

Item(); //f1

Item (int n,char nm[25],float rate); //f2

Item(Item &obj); //f3

}

a) Write function definitions for all the member functions.

b) Name the feature of OOP implemented in above class.

c) Write the constructor invocation statement for the above functions.

Q.17 CONSIDER a class emp with the following specifications :

Class emp

{ Private :

int eno ;

char eName[25];

float sal;

Public:

emp(); //f1

emp (int n,char nm[25],float sal); //f2

emp(emp &E); //f3

}

a) What are member functions f1..f3 called in C++.

b) Name the feature of OOP implemented in above class.

c) When and how the above functions are invoked .

Q.18 CONSIDER a class Movie with the following specifications :

Class

{ Private :

int Mno ;

char Mname[25];

int no_cdl;

Public:

Movie(); //f1

Movie (int n,char nm[25],float sal); //f2

Movie (Movie &m); //f3

}

a) What are member functions f1..f3 called in C++.

b) Name the feature of OOP implemented in above class.

c) When and how the above functions are invoked .

Q.19 CONSIDER a class Result with the following specifications :

Class Result

{ Private :

int Rno ;

int mks;

Public:

Result(); //f1

Result (int rn,int marks); //f2

~ Result( ); //f3

}

a) What are member functions f1..f3 called in C++.

b) Name the feature of OOP implemented in above class.

c) When and how the above functions are invoked .

Q.20 CONSIDER a class Candidate with the following specifications :

Class Result

{ Private :

int Cno ;

char Name[20];

int mks;

Public:

Candidate(); //f1

Candidate(int Cn,char nm[20],int marks); //f2

~ Candidate( ); //f3

}

a) What are member functions f1..f3 called in C++.

b) Write definitions for all functions.

c) Create an object for f1 and f2 to invoke them.

Project Work

System –Student information system, banking, payroll system

ATM ,Shopping Mall ,NDPL billing ,Hotel Reservation,

Data collection and analysis :

Choose any system as your project for XII (a batch of three maximum)

· Collect data about the system (bills,reports,register)

· Analyse the inputs and outputs

System development (coding):

· Define the classes with appropriate data members (Minimum two classes).

· Write main program for function calling.

Note : Project is to be mailed to the e-mail id davcpnrl_40@hotmail.com latest by 20^th June2012.

Your Project should cover the following specifications :

· Project Title(name of project,rollno, class)

· Acknowledgement

· Certificate

· Introduction to project

· Software and hardware required(Operating system also)

· Project coding

· Project screens(output)

· Bibliography

D.A.V.C.P. School Narela

Pages

Monday, 16 July 2012

Wednesday, 23 May 2012

News

Monday, 21 May 2012

Sunday, 20 May 2012

Saturday, 19 May 2012

Friday, 18 May 2012

summer holidays homework-2012

Summer Vacation Holidays Homework -2012(LKG)

Summer holidays homework 2012 (CLASS VIII)

Summer holidays homework 2012 (Class X)

Thursday, 17 May 2012

Summer Holidays HomeWork computer Science(III-XII) 2012

Make a model using cardboard, coloured sheet and other required material according to your roll numbers

Do this assignment in your Computer notebook with heading holidays Homework (2012)

Do this assignment in your Computer notebook with heading holidays Homework (2012)