TN 11th Question Paper 2026 Computer Science

FOR TN 11TH EXAM PREPARATION

TN 11th 2026
Question Paper ·
Computer Science
EXAM YEAR TYPE SUBJECT

TN 11th 2026 Question Paper Computer Science

Notes · Sample Papers · Previous Year Papers · Mock Tests

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No. of Printed Pages : 12
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!9172IstYearComputerScience! £vÄ Gs
Register Number

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PART - III
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PoÛ.coAÔ¯À / COMPUTER SCIENCE m
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( / Tamil & English Version )

Põ» AÍÄ a
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: 3.00 ] [ ö©õzu ©v¨ö£sPÒ : 70

Time Allowed : 3.00 Hours ] [ Maximum Marks : 70

AÔÄøµPÒ : (1) AøÚzx ÂÚõUPЮ \›¯õP £vÁõQ EÒÍuõ GߣuøÚ \›£õºzxU
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Instructions : (1)
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Check the question paper for fairness of printing. If there is any lack of fairness,

inform the Hall Supervisor immediately.

(2) Use Blue or Black ink to write and underline and pencil to draw diagrams.

£Sv – I / PART - I
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GÊuÄ®.

Note : (i) Answer all the questions.

(ii) Choose the most appropriate answer from the given four alternatives and write

the option code and the corresponding answer.

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2

1. RÌÁ¸ÁÚÁØÖÒ Gx J¸ •ußø© {øÚÁP©õS® ?
(A) (B)
Flash drive (C) ROM Hard disk (D) RAM

Which one of the following is the main memory ?

(a) Flash drive (b) ROM (c) Hard disk (d) RAM

2. 2^50Gߣx Gøu SÔUS® ?
(A) ¥mhõ (B) Q÷»õ (C) ãmhõ (D) öhµõ
2^50 is referred to as :

(a) Peta (b) Kilo (c) Zetta (d) Tera

3. Gx ÷ÁP©õP ö\¯À£k® {øÚÁP® BS® ?
(A) ÷Pa {øÚÁP® (B) Áß ÁmkPÒ
(C) ¦Ð&÷µ Ámk (D) •ußø© {øÚÁP®
Which is the fastest memory ?

(a) Cache memory (b) Hard disk

(c) Blue-Ray disc (d) Main memory

4. ¼ÚUì __________ ÁøP ÷Põ¨¦ ÷©»õsø©ø¯ £¯ß£kzxQÓx.
(A) FAT (B) ext2 (C) (D) NFTS NTFS

The file management system used by Linux is __________.

(a) FAT (b) ext2 (c) NFTS (d) NTFS

5. Âs÷hõì &À J¸ ÷Põ¨ø£ ©Öö£¯›h £¯ß£kzu¨£k® SÖUSÁÈ Âø\ :
(A) F5 (B) (C) F2 (D) F6 F4

The shortcut key used to rename file in Windows :

(a) F5 (b) F2 (c) F6 (d) F4

6. EÒÏmk £s¦ ©ØÖ® EÒÏk&öÁαk öuõhºø£ J¸ ]UP¼À SÔ¨¤kÁøu
GÚ AøÇUP»õ®.
__________

(A) ö|Ô•øÓ (B) ÂÁµUSÔ¨¦
(C) Áøµ¯øÓ (D) TØÖUPÒ
Stating the input property and the input-output relation in a problem is known as __________.

(a) Algorithm (b) Specification

(c) Definition (d) Statement

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7. C ö©´ GÛÀ, öPõkUP¨£mh £õ´Ä £h[PÒ Cµsi¾® S1 C¯[S®. BÚõÀ,
S2 GvÀ C¯[S® ?

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(A)
a&À ©mk®
(1) (B) (2) &À ©mk®
(C) (1) ©ØÖ® (2) (D) (1) &® CÀø» (2) &® CÀø»
If C is true, S1 is executed in both the flowcharts, but S2 is executed in :

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(a) (1) only (b) (2) only

(c) Both (1) and (2) (d) Neither (1) nor (2)

8. RÌPshÁØÖÒ Gx öuõS¨¦ ÷|µ (Compile time) ö\¯ØSÔ GßÖ AøÇUP¨£k
QÓx ?
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(A) virtual (B) sizeof (C) this (D) pointer

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Which of the following is called as compile time operators ?

em (a) virtual (b) sizeof (c) this

las (d) pointer

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9. I/O &ÂØPõÚ •ßÁøµ¯ÖUP¨£mh
ö\¯ØTÖPøÍ Áøµ¯ÖUS® ?
(A) string.h (B) stdio.h (C) ctype.h (D) math.h

Which of the following header file defines the standard I/O predefined functions ?

(a) string.h (b) stdio.h (c) ctype.h (d) math.h

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10. £»ÁÈ Qøͨ ¤›¨¦U TØÖ :
(A) switch (B) if (C) for (D) if...else

The multiway branch statement :

(a) switch (b) if (c) for (d) if...else

11. C++&°À RÌPshÁØÖÒ G¢u ]Ó¨¦ ö\õÀ Pmk¸øÁ AÔÂUP
£¯ß£kzu¨£kQÓx ?
(A) object (B) struct (C) array (D) class

Which of the following keyword is used to declare structure in C++ ?

(a) object (b) struct (c) array (d) class

12. uµÄPøͲ® ö\¯ØTÖPøͲ® J¸ ö£õ¸Ò GßÝ® Áøµ¯øÓUSÒ JßÓõP¨
¤ønzx øÁUS® ö\¯À~m£® :
(A) £À¾¸ÁõUP® (B) ©µ¦›©®
(C) A¸Á©õUP® (D) EøÓö£õv¯õUP®
The mechanism by which the data and functions are bound together into a single unit is

known as :

(a) Polymorphism (b) Inheritance

(c) Abstraction (d) Encapsulation

13. Gx CÚUSÊ AqQ¯À¦ Áøµ¯Ö¨¤ AÀ» ?
(A) public (B) private (C) global (D) protected

Which is not the access specifier in class ?

(a) public (b) private (c) global (d) protected

14. ¤ßÁ¸ÁÚÁØÖÒ, Gx {µ¼ß J¨¥kPÎß GsoUøPø¯ SøÓUQÓx ?
(A) ö\¯ØTÖ £oªS¨¦ (B) ö\¯ØSÔ £oªS¨¦
(C) EÖ¨¦ £oªS¨¦ (D) ö\¯Ø£õk £oªS¨¦
Which of the following reduces the number of comparisons in a program ?

(a) Function overloading (b) Operator overloading

(c) Member overloading (d) Operations overloading

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15. Kº CÚUSÊ u¸ÂUP¨£mh CÚUSÊøÁU öPõsk u¸ÂUP¨£mhõÀ Ax
GÚ AøÇUP¨£k®.
__________

(A) J¸ÁÈ ©µ¦›©® (B) £»ÁÈ ©µ¦›©®
(C) Cµmøh ©µ¦›©® (D) £»{ø» ©µ¦›©®
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A class is derived from a class which is a derived class itself, then this is referred to as :

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Single inheritance

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(c)
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Double inheritance (d) Multilevel inheritance
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£Sv – II / PART - II

SÔ¨¦ : GøÁ÷¯Ý® BÖ ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 24 &US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 6x2=12

Note : Answer any six questions. Question No. 24 is Compulsory.

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16. (111011)
2

Convert (111011)
2

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into its equivalent decimal number.

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17. C¯UP Aø©¨¤ß £¯ßPÒ H÷uÝ® Cµsøh GÊxP.
Write any two uses of operating system.

18. J¸ ö|Ô•øÓ Áøµ¯ÖUPÄ®.
Define an algorithm.

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What is recursive problem solving ?s
l as ag
ag uªÈÀ ÷\øÁPøÍ ÁÇ[Q Á¸® ÷ukö£õÔPøÍ £mi¯¼kP.
20.

List out the search engines supported by Tamil language.

21. \µ[PÒ GßÓõÀ GßÚ ?
What is strings ?

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22. AȨ¤°ß ÷uøÁ¨ £ØÔ GÊxP.
Write down the need of destructor.

23. ©µ¦›©zvß ÁøPPøÍ GÊxP.
Write down the types of inheritance.

24. ¤ßÁ¸® {µ¼ß öÁαk GßÚ ?
#include<iostream>
using namespace std;
int main()
{
int i=2;
while(i<=10)
{
cout<<i;
i+=2;
}
return 0;
}
What is the output of the following code ?

#include<iostream>
using namespace std;
int main()
{
int i=2;
while(i<=10)
{
cout<<i;
i+=2;
}
return 0;
}

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£Sv – III / PART - III

SÔ¨¦ : GøÁ÷¯Ý® BÖ ÂÚõUPÐUS Âøh¯ÎUPÄ®. ÂÚõ Gs 33 &US
Pmhõ¯©õP Âøh¯ÎUPÄ®. 6x3=18

Note : Answer any six questions. Question No. 33 is Compulsory.

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Write the significant features of monitor.

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26. CD ©ØÖ®
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DVD

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Differentiate CD and DVD.

27. ©Ö_ÇØ] öuõmiø¯ £ØÔ J¸ SÔ¨¦ ÁøµP.
Write a note on Recycle bin.

28. ÷uº¢öuk¨¦U TØÖPøͨ £¯ß£kzv, ‰ßÖ case £S¨£õ´ÄUS, £õ´Ä¨£h®
JßøÓ ÁøµP.
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Draw a flowchart for 3 case analysis using alternative statements.

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29. ¤ßÁ¸® ÷PõøÁø¯ ©v¨¤kP. C[S
C++

la
Gߣx •Ê GsPÒ ©ØÖ®s x, y, z

Gߣx ªu¨¦¨¦ÒÎ GsPÒ.
m, n ©ØÖ®
ag x=5, y=4 m=2.5 ;

(i) n=x+y/x;

(ii) z=m
*x+y;
Evaluate the following C++ expressions where x, y, z are integers and m, n are floating point

numbers. The value of x=5, y=4 and m=2.5 ;

(i) n=x+y/x;

(ii) z=m
*x+y;
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30. isupper() ©ØÖ® toupper() ö\¯ØTÖPÎß ÷ÁÖ£õkPÒ ¯õøÁ ?
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What are the differences between isupper() and toupper() functions ?

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Define information hiding.

32. SÔ¯õUP® ©ØÖ® ©øÓSÔ¯õUP® £ØÔ GÊxP.
Write about encryption and decryption.

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33. ¤ßÁ¸® {µ¾UPõÚ öÁαmøh GÊxP.
#include<iostream>
using namespace std;
void printdata(int i)
{
cout<<“ It is integer” <<i<<endl;
}
void printdata (string ch)
{
cout<<“ It is string” <<ch<<endl;
}
int main()
{
printdata(“Ten”);
printdata(10);
return 0;
}
Write the output of the following program :

#include<iostream>
using namespace std;
void printdata(int i)
{
cout<<“ It is integer” <<i<<endl;
}
void printdata (string ch)
{
cout<<“ It is string” <<ch<<endl;
}
int main()
{
printdata(“Ten”);
printdata(10);
return 0;
}

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£Sv – IV / PART - IV

SÔ¨¦ : AøÚzx ÂÚõUPÐUS® Âøh¯ÎUPÄ®. 5x5=25

Note : Answer all the questions.

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(B) PnURmka emö\¯ØSÔPÒ ©ØÖ® J¨¥mka ö\¯ØSÔPøÍ ÂÍUSP. glas
(a)
g la a
Explain the first five generations of computer.

a OR

(b) Explain Arithmetic Operators and Relational Operators.

35. (A) AND, OR ©ØÖ® NOT Áõ°ÀPøÍ Auß ÷PõøÁ ©ØÖ® ö©´£mi¯¾hß
ÂÍUSP.
AÀ»x
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(B) Pmk¨£õmk TØÖPøÍ ö£õ¸zu©õÚ GkzxUPõmkhß ÂÍUSP.
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(a)

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Explain AND, OR and NOT gates with expression and truth table.

OR

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(b) a
Explain control statement with suitable example.

36. (A) ROM &ß ÁøPPøͨ £ØÔ ÂÍUSP.
AÀ»x
(B) J¸ •Ê Gsøn EÒÎmk Aøu uø»RÇõP ©õØÓ® ö\´²® {µø»
GÊxP.
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(a) Explain the types of ROM.
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¯õøÁ ?
(a) Explain the concept of a Distribution Operating system along with its advantages.

AÀ»x / OR

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(B) ¤ßÁ¸® C++ {µ¼ß öÁαmøh GÊxP.
#include<iostream>

using namespace std;

int main()

{

char colour[4][10]={“Blue”,“Red”,“Orange”,”Yellow”};

for(inti=0; i<4; i++)

cout << colour[i]<<“\n”;

return 0;

}

(b) Write the ouput of the following C++ program :

#include<iostream>

using namespace std;

int main()

{

char colour[4][10]={“Blue”,“Red”,“Orange”,”Yellow”};

for(inti=0; i<4; i++)

cout << colour[i]<<“\n”;

return 0;

}

38. (A) J¸ ÷Põ¨¦ AÀ»x ÷Põ¨¦øµø¯ ÷uiU Psk¤iUS® £À÷ÁÖ
ÁÈ•øÓPøÍ ÂÍUSP.
(a) Explain the different ways of finding a file or folder.

AÀ»x / OR

For more Question Papers, Sample Papers, Notes & Syllabus visit Page 10 of 12

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(B) RÌPsh {µ¼À EÒÍ ¤øÇPøÍ PshÔ¢x ¤øÇ v¸zu® ö\´P.
%include(iostream.h)
#include<conio.h>
Class A()
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{

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public;
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int a1,a2:a3;
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void

a1=15;
a2=13;
a3=13;
}

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class B:: public A()
{
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PUBLIC
las
voidfunc()
ag
{
int b1:b2:b3;
A::getdata[];
b1=a1;
b2=a2;
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b3=a3;

c. o cout<<b1<<‘\t’<<b2<<‘t\’>>b3; s e m
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las ag
ag void main()
{
B der;
der1:func();
}

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12

(b) Debug the following program :

%include(iostream.h)
#include<conio.h>
Class A()
{
public;
int a1,a2:a3;
void getdata[]
{
a1=15;
a2=13;
a3=13;
}
class B:: public A()
{
PUBLIC
voidfunc()
{
int b1:b2:b3;
A::getdata[];
b1=a1;
b2=a2;
b3=a3;
cout<<b1<<‘\t’<<b2<<‘t\’>>b3;
}
void main()
{
B der;
der1:func();
}

- o O o -

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