Class Nine [Computer Solution]
MODEL QUESTIONS SET- 8
Group A :
“Computer Fundamentals” [20 marks]
1. Answer
the following questions. 4×2=8
a)
What is then advantage of primary memor over secondary memory?
Ans: Accessing
data from primary memory is faster because it is an
internal memory of the computer is the main advantage of
primary memory over secondary memrory.
b)
Mention any two differences between SRAM and DRAM.
SRAM
|
DRAM
|
SRAM
has lower access time, which is faster compared to DRAM.
|
DRAM
has a higher access time. It is slower than SRAM.
|
SRAM
is costlier than DRAM.
|
DRAM
cost is lesser compared to SRAM.
|
Ans:
c)
What is the main purpose of IT policy in Nepal ?
ans: Main
purpose of IT policy is
to make information technology accessible to general public and increase
employment through this means, to build knowledge based society and to
establish knowledge based industries.
d) What is a microprocessor ? List the different
parts of microprocessor?
Ans: A microprocessor is
an electronic component that is used by a computer to do its work.
Each microprocessor will
have the following basic components:
·
Memory:
Storage of data. ...
·
Registers:
small, fast memories. General purpose: store arbitrary data. ...
·
Instruction
decoder: Translates current program instruction into a set of control signals.
·
Arithmetic
logical unit: ...
·
Control
Unit: ...
·
System
Bus:
2. Mention
True or False. 2
a)
Floppy disk is a large storage device.false
b)
Compiler and interpreter are the examples of language translator.true
c)
BASIC is a low level programming language.false
d)
The base of octal number system is 16.false
3. Write
down the full form for the following. 2
a)
HTML=hypertext markup language b)
URL=uniform resource locator c) WWW=world
wide web d) SMPS=switched mode power
supply
4. Match
the following. 2
Pen
drive ABC
Monitor Soft copy output
John
V. Atanasoff Hard copy output
Bit Storage device
Ans:
Pen drive Storage
device
Monitor Soft copy output
John
V. Atanasoff ABC
Bit binary digit
5. Write
down the single technical term for the following. 2
a)
The proces of remove the bug from the computer program. debug
b)
A collection of program.software
s
d)
A peripheral device for producing text, images on paper for present and future
use.printer
6. a)
Convert the following is indicated : 2
i)
(6A7D)16 into octal ii)
(7045)16 into binary
b)
Perform the following binary calculation. 2
i)
(11100)2 × (1111)2 + (111)2
ii)
(11101)2 ÷ (110)2
Group B: “Operating System” 5 marks
7. Mention
any two differences between DOS and Windows. 1
Ans:
Dos
|
Window
|
Dos is command user interface operating system.
|
Window is graphical user interface operating system.
|
Dos is not much user friendly OS.
|
Window is user
friendly OS.
|
8. Write
down the commands to accoplish the following tasks. 2
a)
To copy all the files of drive A: including all subdirectories into drive B:
b)
Copies all the files that have extension BAS from BASIC directory of drive B
and its lower sub-directories into PROG directory of drive A: staying at drive
C.
9. Answer
the given questions: 2
a)
What is the difference between copy paste and cut paste ?
ans: Copy
is the way of creating duplication of file or folder in different location.
Cut
is the way of moving of file or folder in different location.
b)
What is the advantage of creating shorcut on the desktop ?
ans: The advantages of creating shortcut on desktop is
the fast access of the file and folder.
Group C : “HTML” 5 marks
10. Answer
the given questions : 3
a)
Why is <FONT> tag used ?
ans: To add different font effect to text.
b)
What do you know about BODY section ?
ans: The
section that holds all the content of page.
c)
How do you add images on the HTML document ?
ans; Using
<img> tag we can add image
11. State
True or False. 2
a)
<IMG> tag will have start and end tag.false
b)
We can move the text after using <MARQUEE> tag.true
c)
We can develop application programs by using HTML code.false
d)
After creating web pages it can keep on web server.true
Group D: “Programming” [20 Marks]
12. a)
What is constant ? List the various types of constant.
Ans: Constant
are the values whose values remain same during the execution of program
Types
are: Numeric constant and String Constant
b)
Define logical operator with some examples.
Ans: The
operator that combines two or more than two relational expression and returns
either true or false value is called logical operator.. Examplees are: AND,OR
& NOT
c)
What is declaration statement ? Write with example.
Ans; Declaration
statement is the statement that is used to declare procedure in QBASIC. Example:
Declare
function ram(S$)
13. a)
Draw a flochart to calculate area of a circle for a given radius(R). 2
b)
Write down the output of the following program. 2
CLS
DIM
A(10)
FOR
C = 1 TO 12
READ
Ac
NEXT
C
DATA
23, 45, 23, 67, 4, 5, 6, 2, 9, 57, 3
FOR
Y = 10 - X
IF
A(Y) = 10 - X
IF
A(Y)<A(Y+1) THEN
SWAP
A(Y), A(Y+1)
ENDIF
NEXT
Y
NEXT
X
FOR
J = 1 TO 10
PRINT
A(J);
NEXT
J
END
14. Read
the following program and answer the given questions: 4
CLS
DIM
A(3, 4)
FOR
I = 1 TO 3
S
= 0
FOR
J = 1 TO 4
READ
A(I, J)
S
= S + a(I, J)
PRINT
A(I, J);
NEXT
J
PRINT
“=” ; S
NEXT
J
DATA
a)
Write down the output of the above
program.
10, 20, 30, 40=100
20,
30, 40, 50=140
30,
40, 50, 60=180
b)
Count the number of variable
declared in teh above program.
1
c)
What is the meaning of DIM A(3, 4)
?
Two dimensional array with name A nd dimension 3*4
d)
What is the purpose of
READ.......DATA statement ?
Ans: READ statements assign
variables to DATA statement values on a one-to-one basis
15. a)
Write a program to find the ages less then or equal to 12 and above 12 as user
enters the age from teh keyboard. 3
CLS
DIM num(10)
DIM ageless(10)
DIM ageequal(10)
DIM ageabove(10)
FOR i = 1 TO 10
INPUT
"THE age"; num(i)
NEXT i
FOR i = 0 TO 10
IF num(i) <
12 THEN
ageless(i)
= num(i)
ELSEIF num(i)
< 12 THEN
ageabove(i) = num(i)
ELSE
ageequal(i) = num(i)
END IF
NEXT i
FOR i = 1 TO 10
PRINT
"less age is"; ageless(i)
PRINT
"grat age is:"; ageabove(i)
PRINT
"eal age is"; ageequal(i)
NEXT i
END
b)
Write a program to comuter surface area of sphere of radius from 5-15 by usign
FOR........NEXT statement. 3
CLS
FOR r = 5 TO 15
area = 4 * (22
/ 7) * r ^ 2
PRINT
"Area of sphere with radius", r; "is", area
NEXT r
end
c)
Given these numbers 45, 25, 44, 12, 63 36, 8, 15, 50, 27 write a program to
find sum the numbers greater than 50. The program should store given number in
the array.
CLS
DIM num(10)
FOR i = 1 TO 10
READ num(i)
NEXT i
sum = 0
FOR i = 1 TO 10
IF num(i) >
50 THEN
sum = sum
+ num(i)
END IF
NEXT i
PRINT "sum is:"; sum
END
DATA 45,25,44,12,63,36,8,15,50,27
End
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