Model Set 8 - Class 9 - Computer Science 2076
Computer Science (Optional Science)
PROPOSED MODEL QUESTION
Group A
“Computer Fundamentals” [22
marks]
1. Answer the following questions. 5×2=10
a) What is hardware ?
The physical components that make up the
entire computer system is called hardware.
b) What is language translator
? List its types.
Language translator is a type
of system software that translates programs prepared by programmer in any other
languages into machine language. Its types are :-
i)
Assembler
ii)
Interpreter
iii)
Compiler
c) What is e-governance ?
E-governance is the use of
range of modern information and technologies by government to improve
efficiency of services.
d) What are the objective of IT
Police 2057 BS ?
The objective of IT Policy of
2057 BS are :-
i)
To make information technology accessible to the general public
and increase employment through this means.
ii)
To build a knowledge-based society.
iii)
To establish a knowledge-based industry.
e) Write any four negative
impacts of computer on society.
Any four negative impacts of
computer in society are :-
i)
It has increase the unemployment.
ii)
It is highly expensive.
iii)
It increase computer crime.
iv)
It upgrades frequently.
2. a) Convert the following: 2
i) (111011)2 into Octal
ii) (634)10 into Hexadecimal
b) Perform the binary
calculation: 2
i) 110101 + 10101
ii) 11101 × 1001
3. Match the following pairs: 2
a) Dot matrix printer c) input device
b) Laser printer d) output device
c) Light pen a) impact
printer
d) Speaker b) non-impact printer
4. Fill in the blanks with suitable
words: 2
a) Information technology is a technology that is used to store
, communicate and process the information.
b) System software controls and manages all the internal
operation of the commuter.
c) Thermometer and speedmeter
are the examples of Analog
devices.
d) IC was the main devices used in third generation of
computer.
5. Give the appropriate technical
term of following: 2
a) Software is designed to
perform maintenance work on the computer system.
- Utility software
b) The section of CPU that
perform all arithmetic and logical calculation on data.
- ALU
c) The main components of
fifth generation of computer.
- Biochips
d) Comuter’s capability to
perform a variety of tasks at a time.
- Versatile
6. Give the full form: 2
i) ABC – Atanasoff Berry
Computer
ii)
ICT – Information and Communications Technology
iii)
CPU - Central Processing Unit
iv)
ROM – Read Only Memory
Group B :
DOS + Windows [5 marks]
7. a) What is MS-DOS?
MS-DOS is a single use, single
tasking operating system developed by Microsoft for the IBM range of personal
computers.
1
b) What is taskbar ?
Taskbar is a horizontal bar
located on the bottom of the desktop.
1
c) What is dialog box ?
Dialog box is a type of window
in a graphical user interface, which is used for special purposes.
1
d) Write the function of the
following DOS commands. 2
i) D:\>DIR*.TXT
Displays all the files
having txt as extension of d drive.
ii)
C:\>CHKDSK
check a specified disk and repair or recover data on the
drive if necessary
Group C :
HTML [5 marks]
8. a) What is tag ?
Tag is the code and command
that define the structures and behaviors of the different parts of a web
document.
1
b) Write the basic structure of HTML. 1
The basic structure of HTML :-
<HTML>
<HEAD>
<TITLE>………..</TITLE>
</HEAD>
<BODY>
…..
….
</BODY>
</HTML>
c) Wrie the HTML codes to
display the following. 3
S.N. Name Address
1. Ravindra Bhaktapur
2. Manohar Kathmandu
<TABLE BORDER=1>
<TR>
<TH> S.N. </TH>
<TH> Name </TH>
<TH> Address </TH>
</TR>
<TR>
<TD> 1. </TD>
<TD> Ravindra </TD>
<TD> Bhaktapur </TD>
</TR>
<TR>
<TD> 2. </TD>
<TD> Manohar </TD>
<TD> Kathmandu </TD>
</TR>
</TABLE>
Group D :
Programming [18 marks]
9. a) What is an array ?
Array is a set of similar data
elements, which are stored in consecutive memory locations under a common
variable name.
b) Write down the syntax of
the following statements.
i) STR$ ()
- STR$[N]
ii)
STRING$()
-
STRING$ [(Length %), ASCII code l sting
expression]
10. Draw a flow chart to display the
even numbers fro 2 to 100. 2
11. a) Write the output of the
following program. 2
CLS
X = 1
FOR I = 1 TO 5
PRINT X
X = X*10+1
NEXT I
END
Output
1
11
111
1111
11111
b) Debug the following
program. 2
REM to display the given
number in reverse.
CLS
INPUT “ENTER A
NUMBER”;n$
WHILE N<> ZERO
R=A MODE 10
S=S*10+R
N=FIX(N/10)
LOOP
PRINT S
END
Debugged
Program
REM to display the given
numbers in reverse.
CLS
INPUT “Enter a number”;N
INPUT “Enter a number”;N
S = 0
WHILE N<>0
R = N MOD 10
S = S*10+R
N = FIX(N/10)
WEND
PRINT S
END
12. Read the following program and
answer the questions: 2
CLS
LETA$=”BHAKTAPUR”
FOR I = 1 TO LEN(A$)
B$=MID$(A$,
I, 1)
C$=LCASE$(B$)
IF INSTR
(“aeiour”, C$) <> 0 THEN V = V + 1
NEXT I
PRINT V
END
a) Make
a list of built in function used in the program.
i)
INSTR ( )
ii)
MID$ ( )
iii)
LCASE$ ( )
iv)
LEN ( )
b) Make
a list of variables used in this program with their types.
i)
A$ - String variable
ii)
B$ - String variable
iii)
C$ - String variable
iv)
I – Numeric variable
v)
V – Numeric variable
13. a) Write a program to calculate the
circumference of a circle. 2
CLS
INPUT “Enter the radius”; r
INPUT “Enter the radius”; r
C = 2*22/7*r
PRINT “Circumference of
circle=”; C
END
c) Write
a program to ask to enter a string then find out whether it is palindrome or
not. 3
CLS
INPUT “Enter any word”; A$
FOR I = LEN(A$) TO 1 STEP -1
B$ = MID$(A$,I,1)
C$ = C$+B$
NEXT I
IF C$ = A$ THEN
PRINT “The given word is palindrome”
ELSE
PRINT “The given word is not palindrome”
PRINT “The given word is not palindrome”
END IF
END
d) Write
a program to ask to enter 10 diffeentanems from teh users then arrange is
descending order. 3
CLS
DIM N(10) AS STRING
DIM N(10) AS STRING
FOR I = 1 TO 10
INPUT “Enter the names’: N(I)
NEXT I
NEXT I
FOR I = 1 TO 10
FOR J = 1 TO 10 – I
IF N(J) < N (J+1) THEN SWAP N(J), N(J+1)
NEXT J
NEXT I
PRINT “The sorted names in descending order”
FOR K = 1 TO 10
PRINT N(K)
NEXT K
END
End
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