Solved Model Set 5 Computer Science - Grade Nine
Set 5
1. Answer
the following questions. 5×2=10
a)
Differentiate between hardware and software with any two examples of each.
Ans: The
difference between hardware and software are:
Hardware
|
software
|
i. It is the physical part of
computer.
ii. We can touch it.
iii. Eg. Printer, keyboard, etc
|
i. It is not the physical part
of computer.
ii. We cannot touch it.
iii. Eg. Ms-word, excel, etc.
|
b)
How does use of computer improve quality of your life? Justify.
Ans: Computer
improves quality of life in following ways:
i. It helps to complete our
work in less time with 100% accuracy.
ii. It helps to communicate
with other people in different ways
|
iii. It allows sharing ideas,
news and views.
iv. It provides different
options for learning different topics.
c)
List any two areas cyber law 2061 B.S. of Nepal.
Ans: The two
different areas of cyber law of Nepal are:
Electronic and Digital Signature law
Computer
crimes/Cyber-crime law
d)
What are the benefits of e-government?
Ans: The
benefits of E-government are given below:
i. People can get different
information of different sector related
to government and their tasks.
ii. Corruption can be
controlled.
iii. Most of the people will
be getting job opportunities.
iv. All the people will enjoy
the rights given by government.
e)
Write the function of input and output unit.
Ans: The
function of input unit is to feed data to the computer and the function of
Output unit is to give the result to the user.
2. a)
Perform binary operation: 2
i)
10001 × 101 ii)
101001 ÷ 111
b)
Convert as instructed: 2
i)
(B2)16 into octal number
ii) (725)10 into binary number system. 2
3. Match
the following pairs: 2
Flash
drive Volatile Memory
4
bits Pen drive
RAM 1 nibble
Paperless
Mail Mail
Email
Ans: Flash drive = Pen
drive
4 bits = 1
nibble
Ram =
volatile memory
Paperless
mail = E-mail
4. State
true or false. 2
a)
CPU is the main processing unit of computer. True
b)
Hard disk is a sequential data access medium. False
c)
Touch Pad is a pressure sensitive pad. True
d)
Computer can perform logical operations. True
5. Give
the appropriate technical term: 2
a)
Physical components of the computer. Hardware
b)
A set of programs to carry out operations for a specific application.
Application Software
c)
A unit that manages all the computer resources. Control Unit
d)
An optical disk which enable pre-recorded data to be read. CD-ROM
6. Give
the full form: 2
i)
ALU ii) WWW iii) IBM iv) ENIAC
Ans: i.
ALU = Arithmetic Logic Unit
ii. WWW = World Wide Web
iii. IBM = International
Business Machine
iv. ENIAC = Electronic
Numerical Integrator And Computer
Group B :
DOS + Windows [5 marks]
7. a)
Write any two factions of operating system. 1
Ans: The
two functions of OS are given below:
i. It manage the computer's resources, such as the central
processing
unit, memory, disk drives, and printers
ii. It
establish a user interface
iii. It
executes and provides services for applications software.
iv. It
lets us to manage the settings of the computer.
b)
Write any two functions of MS-Windows. 1
Ans: The
two functions of Ms-Windows are given below:
i. It helps to interact with
computer in Graphical based way.
ii. It helps to do our work
efficiently.
iii. It helps to create
programs, documents, etc with error free.
iv. it helps to do various
types of work at a time.
c)
What is system folder? 1
Ans: It
is a storage location where system files are kept.
d) Fill in
the blanks. 2
i) .GUI.......... based OS is more popular than
CUI.......... based OS.
ii) Copy. command is used to copy files and folders.
iii) .CUI operating system is older type of
operating system.
iv) Computer
cannot run without ...software...
Group C :
HTML [5 marks]
8. a)
Write the role of web server WWW. 1
Ans: It
is a type of server that is dedicated to give the services to the request made
by clients all over the network in the world.
b)
Wha tis uploading and downloading? 1
Ans: Uploading is the process of keeping the files
and data from our computer to the internet.
Downloading is the process of receiving the files or data from
internet to our computer.
c)
Write an example of each container and empty tag. 1
Ans: The
examples of Container Tag = <b>……</b>, <i>….</i>, etc
The examples of empty tags
=<hr>, <br>, <img>, etc.
d)
Fill in the blanks. 2
i)
.Attribute. is the property of tag.
ii)
There are .....2...... types of tag.
iii)
....<img>.. tag is used to insert picture.
iv)
Collection of web pages is called ..website.
Group D :
QBasic Programming [18 marks]
9. Answer
the following questions. 2
a)
Write the function of input ad print statement. 1
Ans: The
function of:
Input: It is used ask the data
to the feed when F5 key is pressed.
Print : It is used to display
the result
b)
What function is perform to use given chart in the flowchart ? 1
i) ii)
[No
images are given below:]
10. Draw
a flowchart to input 10 different non-negative numbers and find the sum of it. 2
Flowchart
11. a)
Write the output of the given program: 2
CLS
A$
= “NEPAL”
FOR
I = 1 TO 5 step 2
PRINT
MID$(A$, I, 1)
END
Ans: N
P
L
b) Debug the program: 2
CLS
REM
to find average of 1st ten natural
number
S
= S + 1
PRINT
S
AG=SUM/10
END
NEXT
I
PRINT
S
Ans: Program
after debug:
CLS
REM TO FIND AVERAGRE OF FIRST
TEN NATURAL
NUMBER
FOR I=1 TO 10
S=S+I
NEXT I
PRINT S
END
12. Read
the given program and answer the questions: 2
CLS
Let
a = 2; b = 5
s
= a + b
PRINT
S
END
a)
If a = 0, then what is the value of output ?
b)
What is the output in the given program if PRINT S is removed ?
Ans: a.
The output will be “5”.
b. There won’t be any output.
13. a)
Write the program to display given Fibonancci series, 1, 1, 2, 3, 5, 8. 1
CLS
A=1
B=1
PRINT A,B
FOR I=Q TO 4
C=A+B
PRINT C
A=B
B=C
NEXT
END
b)
Write the program to ask a number and check whether it is even or odd. 2
CLS
INPUT
“ENTER A NUMBER”;N
IF
N MOD 2=0 THEN
PRINT
“IT IS EVEN NO”
ELSE
PRINT
“IT IS ODD NUMBER”
ENDIF
END
c)
Write the program to ask few numbers and display the numbers in reverse order. 3
CLS
INPUT "ENTER ANY NUMBER";
N
S = 0
WHILE N < > 0
R = N MOD 10
S = S * 10 + R
N = N \ 10
WEND
PRINT "REVERSED DIGITS=";
S
END
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