Model question Set 3
Group A
Computer Fundamental [22 Marks]
1. Answer the following questions. 5×2=10
a) Why is memory needed in
computer system ? Explain.
Ans: Memory is needed in computer system
because it is used to store data and information either temporarily or
permanently.
b) What is a modern ? Where it
is mostly used ?
Ans: A device used for transmitting digital
signal to analog signal and vice- versa is called MODEM. It is mostly used in
Internet.
c) What is a complier ? List
its two features.
Ans: Compiler is a type of language
translator that translates program written in high level language into machine
language in a single operation.
Its two features are:
i.
The translating process is incredibly faster.
ii.
It displays the errors after compiling the complete program.
d) Define the term micro
computer with its application area.
Ans: Micro computer is the digital computer
that works with microprocessor.
Its application areas are:
i.
Homes
ii.
Schools
iii.
Offices
e) Mention any two features of
second geenration fo computer.
Ans: Any two features are:
i.
They used transistors as the main electronic component.
ii.
They had more storage capacity.
2. a) Convert the following umbers. 2
i) (4A5)16 = (?)8 ii(
(6507)8 = (?)10
b) Perform the binary calculation. 2
i) 110 ÷ 10 + 1011 ii) (1010)2 × (101)2
3. Match the following pairs: 2
a)CRT b)Volatile
b)RAM a)Output
c)BASIC d)C
d)HLL c)Multipurpose Language
4. Fill in the blanks with suitable
words. 2
a) Magnetic tape is the most commonly
used sequential seondary
storage medium.
b) The example of had copy
output is printer.
c) ROM is a type of non-volatile memory.
d) Bio-chips will be used in fifth generation of computer.
5. Give the appropriate technical
terms to the following. 2
a) A software used for
displaying markup language.
- Web Browser
b) Machine understandable
language.
- Low Level Language
c) A device used for
transmitting digital signal to analog and vice- versa.
- MODEM
d) A sensitive pen used as
pointing device.
- Light Pen
6. Write the full forms of the
following: 2
a) VDU - Visual Display Unit
b) LED - Light Emitting Diode
c) DRAM - Dynamic Random Access Memory
d) MHz - Mega Hertz
Group B :
DOS + Windows [5 marks]
7. Answer the following questions. 2
a) What is an active desktop ?
Active Desktop is a feature of Windows that began in Windows 98 that allows
the user to store Web content on the desktop.
Ans: The visible area on the screen, which
users get immediately after operating system is loaded is called active
desktop.
b) Give the meaning of click
and double click.
Ans: Click refers to the action of pressing
down the left mouse button and releasing it.
Double click refers to the
action placing the mouse pointer over a particular icon or item and pressing
the left mouse button twice rapidly.
c) Write down the commands to
accomplish the following tasks. i)
To copy the file CONFIG.SYS from Drive C: to tEMP
directory of A: drive
ii) To remove the
directory PROGRAMS of A: drive without emptying it.
iii) To display all the
files and fodler page-wise.
Group C :
HTML [5 marks]
8. Answer the following questions. 3
a) Name the tag with
attributes used for adding background image in HTML document.
Ans: The tag used is:
<body background =
"file name">.......</body>
b) What is hyperlink ? Explain
with example.
Ans: The process of linking one HTML
document to other documents for communication is called hyperlink.
E.g. :
<A HREF = "URL"
> Describing text for link </A>
c) What do you know about URL
? Explain.
Ans: URL is an address that identifies the
location of a web page on the Internet.
d) State true or false.
a) The <BGSOUND>
tag can be used only in internet explorer. True
b) HTML allows us to
create different kinds of lists. True
c) HTML is a markup
language. True
d) Every row of a table
is defined by <TD> tag. False
Group D :
Programming [18 marks]
9. Answer the following questions. 2
a) What is a constant ? List
the different types of constant.
Ans: A constant is the value that do not
change during the execution of the program.
The different types of
constant are:
i.
Numeric constant
ii.
String constant
b) What is logical operator ?
Explain.
Ans: Logical operator is the symbol that
perform on the results of the combinations of two or more relational expression
and return a single value. E.g. AND, OR & NOT.
10. Draw a flowchart to read name,
class and marks for five different subjects. Find the average. If the average
is greater or equal to 40. Print “PASS”, else Print “FAIL”.
11. a) Write the output of the
following program: 2
CLS
A$=”LALITPUR”
FOR I = 1 TO 8 step 2
PRINT MID$(A$, I, 1)
NEXT I
END
Output: L
L
T
U
b) Debug the following program : 2
CLS
REM to display 1st ten
natural number
FOR I = 3 TO 10 step 2
S = S + A
PRINT SUM
END
NEXT I
- CLS
REM to display 1st ten natural number
FOR I = 1 TO 10
PRINT I
NEXT I
END
12. Read the following program and
answer the following questions. 2
READ U, V, W, X, Y, Z
PRINT U, V, W
PRINT
RESTORE
READ A, B, C, D, E, F
PRINT D, E, F
DATA 10, 20, 30, 40, 50, 60
END
a) What
is the use of restore statement in the program?
Ans: Once the data element is read, it cannot be read again until
the program resets it. The restore statement is used to reset the data in the
program.
b) What
will happen if the data are insufficient?
Ans: It displays error message “out of data”.
13. a) Write a program to enter
elements of any two matrices and final sum of them. 3
DIM a(2, 2), b(2, 2), s(2, 2)
CLS
FOR i
= 1 TO 2
FOR j = 1 TO 2
INPUT "enter element for first
matrix"; a(i, j)
NEXT j
NEXT i
FOR i
= 1 TO 2
FOR j = 1 TO 2
INPUT "enter element for second
matrix"; b(i, j)
NEXT j
NEXT i
PRINT
"sum of two matrices=";
FOR i
= 1 TO 2
FOR j = 1 TO 2
s(i, j) = a(i, j) + b(i, j)
PRINT s(i, j);
NEXT j
NEXT i
END
b) Write a program to convert
IC (Indian Currency) into NC (Nepali Currency) and vice-versa. 2
- CLS
INPUT "Enter Indian
Currency"; IC
NC = IC / 1.6
PRINT "Nepalese
Currency="; NC
INPUT "Enter Nepalese
Currency"; N
I = N * 1.6
PRINT "Indian
Currency="; I
END
c) Write a program for 5
students : 3
i) Input name of student
& marks obtained out of 100 in 4 subjects &
ii) Print student name
& percentage.
DIM
n$(5), m(5, 4)
CLS
FOR i
= 1 TO 5
INPUT "enter name"; n$(i)
s = 0
FOR j = 1 TO 4
INPUT "enter marks in 4 subject";
m(i, j)
s = s + m(i, j)
NEXT j
NEXT i
CLS
PRINT
"Name", "Percentage"
FOR i
= 1 TO 5
PRINT n$(i),
PRINT s / 4,
PRINT
NEXT i
End
Model Question Set 7
1. Answer
the following questions. 5×2=10
a)
Define computer. List any two characteristics of computer.
A computer is an electronic
machine that accepts the data and instructions from the user, process the data
and instructions from the given set of instructions, stores and gives the
information.
Any two characteristics of computer
High speed
Accuracy
b)
Why do computer need primary memory ?
computer
need primary memory to store data that the CPU
needs imminently so that it does not have to wait for it to be delivered
c)
What is system software ? Write its types.
System software is a set of
programs that manages and supports the computer resources and operations of a
computer system.
Its
Types are: Operating System, Language Processor, Utility Software
d)
List any four positive impacts of computer in our society.
Any
four positive impacts of computer in our society are:
1. It creates new and interesting fields of employments.
2. It helps to do work in very less time.
3. It provides faster communication.
4.
It provides greater access to resources.
e)
Computers are used on entertainment, Justify your answer.
Yes,
computers are used on entertainment. Computers use multimedia technology to
entertain the user. It provides variety of multimedia products to the several
developers. It too facilitates graphics, sound and animation to make audio and
video effective.
2. a)
Convert as instructed : 2
i)
(450)8 into Binary ii)
(10111)2 into Hexadecimal
b)
Perform binary calculations: 2
i)
(111 + 11) × 101 ii) 10101 divided by
11
3. Match
the following. 2
Group
‘A’ Group ‘B’
a. Data c)
Error due to the wrong input
b. Information -)Storage
device
c. GIGO d)
Error in the program
d. Bug a)
Raw facts or symbol
b) Processed data
4. Choose
the correct answers: 2
a)
Vaccum tube was developed by ...............
i)
Lee de Forest ii) Jack Killby
iii) Pascal iv)
Dr. Marcian
b)
Source program is written in ...............language.
i)
English ii) Machine
iii) High level iv) Symbolic
c)
Cyber law was introduced in Nepal in .............BS.
i)
206 ii) 2061 iii)
2057 iv) 2059
d)
Which of the following is volatile memory ?
i)
Hard disk ii) Floppy disk
iii) RAM iv) ROM
5. Give
the appropriate technical of the following: 2
a)
A block of CPU that is used to do logical operations. ALU
b)
The basic program stored in ROM chip. Firmware
c)
An input device which converts text or images into digital form. Scanner
d)
The physical components of computer system. Hardware
6. Write
full form of : 2
i)
IT – Information Technology
ii)
VLSI – Very large Scale Integrated Circuit
iii)
GIS - Geographic
Information System
iv) OCR –
Optical Character Reader
Group B :
DOS + Windows [5 marks]
7. Answer
the following questions. 5
a)
List any two icons available on desktop.
Any
two icons available on desktop are:
1. My Computer
2. My Documents
b)
Write down the steps to create a new folder.
The
steps to create new folder are:
Ø Right click on the empty area. A shortcut menu will
appear.
Ø Select New and then Folder. A new folder icon will appear
with the text New Folder highlighted, which indicates that it can be changed.
Ø Type a new name for the folder and press Enter key.
c)
Write the difference between copying and moving.
The main difference between
copying and moving is that the copying makes a duplicate of
a file or directory
in another location without affecting the original content while moving
transfers the original file or directory to another location.
Group C :
Programming [23 marks]
8. Answer
the following questions. 3
a)
What is Library function ?
Library
function is pre-defined program which is provided by
QBASIC to perform some task easily.
b)
What is looping ?
Looping
is the process of repeating the execution of a statement or a block of
statements guided by a condition.
c)
Write the function of the following statement.
a)
LEN : It returns the number of characters
in a string.
b)
SGN: It returns the sign of a number.
9. Re-write
the following program with correcting the bus: 2
CLS
REM
to generate series 1, 9, 25............upt to 10th term.
a=
1
x
= 1
DO
WHILE x > - 10
PRINT
a2;
a
= a+ 1
x
= x + 1
WEND
END
Debugged
Program
CLS
REM to generate series 1, 9, 25............upt to 10th
term.
a = 1
x = 1
DO WHILE x <=
10
PRINT a ^ 2;
a = a + 2
x = x + 1
LOOP
END
10. Write
the output of the following program : 2
CLS
n$
= “SARBAJANIK”
FOR
i = LEN (N$) TO 1 STEP - 1
b$=RIGHT$(N$,
I)
PRINT
b$
NEXT
i
END
Output
SARBAJANIK
ARBAJANIK
RBAJANIK
BAJANIK
AJANIK
JANIK
ANIK
IK
K
11. Re-write
the following program using WHILE..........WEND loop: 2
CLS
FOR
x = 1 TO 10 STEP 2
PRINT
x
s
= s + x
NEXT
x
PRINT
“Sum =”;S
END
CLS
X=1
WHILE
X<= 10
PRINT
X
S
= S + X
X=X+2
WEND
PRINT
“Sum =”;S
END
12. Study
the following program and answer the questions: 2
CLS
INPUT
“Enter any string=”;n$
FOR
x = 1 TO LEN (n$)
v$=LCASE$(n$)
m$=MID$(v$,
X 1)
IF
m$=”a” OR m$ = “e” OR m$ = “i” OR m$ = “o” OR m$=”u”
THEN
v
= v + 1
ELSE
c
= c + 1
END
IF
NEXT
x
PRINT
“Total no of Vowel letters=”;V
PRINT
“Total no of consonant letters=”;c
END
a) List the library function used in the above program ?
Ans: LEN( ), LCASE$( ), MID$( )
b) What will be the value of V if we input n$ =
“submission”?
Ans: 4
13. Write
a program: 4×3=12
a)
To calculate area of four walls of room.
REM
PROGRAM TO DISPLAY AREA OF 4 WALLS
CLS
INPUT
“ENTER LENGTH”; L
INPUT
“ENTER BREADTH”; B
INPUT
“ENTER HEIGHT”; H
A = 2 * H
* (L + B)
PRINT
“AREA OF FOUR WALLS“; A
END
b)
To input any number test whether input number is perfect square or not.
CLS
INPUT
"ENTER ANY NUMBER"; N
S =
SQR(N)
IF
S = INT(S) THEN
PRINT
"PERFECT SQUARE"
ELSE
PRINT
"NOT PERFECT SQUARE"
END
IF
END
c) To input any number and display the multiplication table
of that number.
CLS
INPUT
"ENTER ANY NUMBER"; N
FOR
I = 1 TO 10
PRINT
N; "X"; I; "="; N * I
NEXT
I
END
d)
To print the letters ne in uppercase and next in lowercase.
[Hints
= MiCrOtEk]
CLS
INPUT
"ENTER ANY WORD"; S$
FOR
I = 1 TO LEN(S$)
B$
= MID$(S$, I, 1)
IF
I MOD 2 = 1 THEN
W$
= W$ + UCASE$(B$)
ELSE
W$
= W$ + LCASE$(B$)
END
IF
NEXT
I
PRINT
W$
END SUB
End
Model Question Set 7
Group A :
“Fundamentals” [22 marks]
1. Answer
the following questions. 5×2=10
a)
What is computer ? Write any tow characteristics of computer.
Computer
is an electronic device that processes the input data according to the given
set of intructions to give meaningful output.
b)
Defien the term memory. List the types of memory in tree structure.
Memory
is the part of computer system that stores data and information for fraction of
a second or permanently.
c)
List any four features of super computer.
Any
4 features of super computer are:
1.
They are the largest and most
expensive digital computers.
2.
They have a large memory capacity.
3.
They have very high processing
speeds.
4.
They are mostly used in forecasting
weather, biomedical research, etc.
d)
Mention any four advantages of internet.
Any
4 advantages of Internet are:
1.
It allows the people to communicate
with each other in real time.
2.
It has made buying and selling of
goods more easier and faster.
3.
It allows the user to use resources
of a far distance computer.
4.
It provides a variety of
information on different subject matters.
e)
Write the name of any four antivirus software.
Any
4 anti-virus software are:
1.
Norton Anti-virus
2.
Kaspersky
3.
NOD 32
4.
Panda
2. a)
Convert as instructed: 2
i)
(76)8=(?)16 ii)
(65)10=(?)2
b)
Perform binary operation. 2
i)
1111 + 1110 - 1011 ii) Divide
11010110 by 111
3. Match
the following pairs: 2
a)Digital
Camera b)Antivirus
software
b)Kaspersky a)Input device
c)Dot
Matrix printer d)Storage media
d)Compact
disk c)Output device
Online media
4. State
true or false. 2
a)
Cyber law is the law which used to stop computer crime. True
b)
CD has more storage capacity than DVD. False
c)
Tailored package is a software used for general purpose.
d)
Digital computer usnderstands only two digits, i, e, 0 and 1. True
5. Give
the appropriate technical term: 2
a)
The program stored in th form of ROM is called.
-
b)
A type of memory that sotres data, programs softwares, etc permanently even if
the disk crashes.
-
Secondary memory
c)
A computer which has lower storage capacity, funcitons and used by geenral
people.
-
d)
A device used to transfer files from one computer to another.
-
USB
6. Give
the full form: 2
i)
ASCII - American Standard Code for Information Interchange
ii)
KBPS -
iii)
VSAT -
iv)
ICT - Information and Commnications Technology
Group B :
DOS + Windows [5 marks]
7. a)
What is meant by file ? 1
A
file is a collection of related data stored on a disk.
b)
What does “C:\dir/w” mean ? 1
c)
Mention any four features of windows. 1
Any
4 features of Windows are:
1.
It is GUI based operating syatem.
2.
It supports a long file name.
3.
It supports communication through
the Internet.
4.
It helps to run multiple programs
at a time.
d)
Fill in the blanks: 2
i)
Delete command is used to delete files.
ii)
............. command is automatically loaded when computer is started.
iii)
............. operating system occupies more memory in the computer.
iv)
.............. is used to open the program.
Group C :
HTML [5 marks]
8. a)
What will happen if we do not close the paired tag ? 1
If
we do not close the paired tag either the effect will not be activated or the
effect will not be off.
b)
<FONT SIZE = 4> ..................</FONT> 1
Name
the tag, attribute and value fro the given above tag.
Tag
- <FONT>
Attribute
- SIZE
Value
- 4
c)
In how many ways hyperlink can be created?
Hyperlinks
can be created in two ways.
d)
State either True or False.
i)
HTML is a text file.
ii)
Paired tag must have end tag. True
iii)
<BG SOUND> tag is used for background music. True
iv)
htm is an extension of HTML. False
Group D :
Programming [18 marks]
9. Answer
the following questions. 2
a)
What is an array ?
An
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)
DIM - DIM variable (subscripts) [as type]
ii)
MID$ - MID$ [string expression, start position, length]
10. Draw
a flow chart to display the even numbers from 2 to 100. 2
11. a)
Write the output of the following program. 2
CLS
DATA
Laxmi, Roshni, Roman, Samar
NEXT
A
FOR A = 1 TO 5
READ
N $
C$=C$
+ MID$(N$, A, 1)
NEXT
A
PRINT
“Result=*;C$
END
b)
Debug the following program. 2
REM
to display the reverse of the number.
CLS
INPUT
“Enter any number”;N$
DO
WHILE N$<> 0
B=10
MOD N$
R
= B * 10 + R
N$
= N$/!)
LOOP
PRINT
“Reverse numberis”;R
END
-
Debugged program
REM
to display the reverse of the number.
CLS
INPUT
“Enter any number”;N$
S
= 0
WHILE
N <> 0
B
= N MOD 10
R
= R * 10 + B
N
= N\10
WEND
PRINT
“Reverse number is”;R
END
12. Read
the followign program and answer the quesitons. 2
CLS
OPTION
BASE 1
DIM
(5) AS INTEGER
FOR
P = 1 TO 5
READ N (P)
IF N(P) MOD 3 = 0 AND N(P) MOD 4 = 0 THEN S
= S + N(P)
NEXT
P
DATA
12, 30, 60, 50, 24
PRME
“Result=”;S
END
a)
What is the output of the above rogram ? 2
b)
List the variables used in the program. 3
13. a)
To accept length and breadth of a rectangle and display its area and perimeter. 2
CLS
INPUT
"Enter length"; l
INPUT
"Enter breadth"; b
A
= l * b
P
= 2 * (l + b)
PRINT
"Area of rectangle="; A
PRINT
"Perimeter of rectangle="; P
END
b)
To accept any ten numbers from a user and display the sum of odd number among
them using an Arrary. 3
CLS
DIM
N(10)
FOR
I = 1 TO 10
INPUT
"Enter the numbers"; N(I)
IF
N(I) MOD 2 = 1 THEN S = S + N(I)
NEXT
I
PRINT
"Sum of odd numbers is"; S
END
c)
To accept a number from a user and display its factorial. 3
CLS
INPUT
"Enter any number"; N
F
= 1
FOR
I = 1 TO N
F
= F * I
NEXT
I
PRINT
"Factorial="; F
END
End
Model Question Set 5
Group A :
“Fundamentals” [22 marks]
1. Answer
the following questions. 5×2=10
a)
What are the disadvantages of computer ?
The
disadvantages of computer are:
1.
It has increased unemployment.
2.
It upgrades frequently.
b)
Differntiate between analog and digital computer.
The
differences between analog and digital computer are:
Analog Computer
|
Digital Computer
|
1. It is a special purpose computer that works on
continuous signals.
|
1. It is the most popular general purpose computer
that works on digital data.
|
2. E.g. are: Speedometer, Thermometer, etc.
|
2. E.g. are: CRAY-XMP, CYBER 205, etc.
|
c)
Why is CPU called ‘brain’ of computer ? Explain.
CPU
is called 'brain' of computer because this is the main part of the computer
which is resposible for processing and controlling the entire operations of
computer system.
d)
Differentiate between packaged and tailored software.
The
differences between packaged and tailored software are:
Packaged software
|
Tailored software
|
1. It allows the computer to perform specific task for
different users.
|
1. It is designed to meet the specific requirements of
an individual.
|
2. It is a type of generalized set of application
software.
|
2. It is a type of specialized set of application
software.
|
e)
Why computer is called versatile machine ? Explain.
Computer
is called versatile machine because in this machine wide range of operations
can be done and its application area is not limited.
2. a)
Convert the following numbers. 2
i)
(6AD)16 = (?)2 ii)
(4A7)8 = (?)2
b)
Perform the following calculation: 2
i)
1010 × 100 ÷ 10 ii)
100101 + 1001 - 110
3. Match
the following pairs: 2
a)Rom c)Fourth
Generation
b)Monitor a)Primary Memory
c)VLSI b)Output device
d)Photoshop DBMS
d)Graphics
4. Select
the correct answer: 2
a)
The computer wich works on binary number.
i)
Analog computer ii)
Digital computer
iii)
Hybrid computer iv) Super
computer
b)
First electronic computer is
i)ENIAC ii) EDVAC iii) EDSAC iv) All
c)
The memory placed in between CPU and main memory.
i)
Main memory ii) Auxiliary memory
iii)
Cache memory iv) None
d)
CPU is also known as
i)
Brain of computer ii)
Heart of computer
iii)
Nerve centre iv)
None
5. Give
the appropriate technical term: 2
a)
A subject in which stuents study about computer hardware and software.
-
Computer science
b)
To control all the units of the computer.
-
Control Unit
c)
To supply regulated power to the computer even at the time of power cut.
-
Generator
d)
To print engineering drawing.
-
6. Give
the full form: 2
i)
ALGOL -
b)
RPG -
c)
PROLOG -
d)
LISP -
Group B :
DOS + Windows [5 marks]
7. a)
What is the purpose of OS? 1
The
purpose of OS is to provide easy interaction between the user and computer.
b)
What is meant by ICON ? 1
ICON
is the small bitmap picture or symbol used in GUI based operating system
environment.
c)
Write the functions carried out by following DOS commands. 3
i)
B:\>ATTRIB + H ABC.DAT ii)
C:\>CoPY*.*D:
iii)
A:\>DEL TREE D:
Group C :
HTML [5 marks]
8. Answer
the following questions. 2
a)
What are the tools that you need to write HTML document ?
The
tools needed to write HTML document are:
1.
Notepad/Wordpad
2.
Web Browser
b)
Mention the purpose of start and end tag of HTML.
c)
Fill in the blanks. 3
i)
Unordered lists items are prepared by the
<LI> tag.
ii)
The TYPE attribute is used with <OL>
tag to change the numering
style i lists.
iii)
The <A> tag is used to creat links
in HTmL document.
Group D :
Programming [18 marks]
9. Answer
the following questions. 2
a)
Define the term stateemnt. List the different tye of statement.
Statements
are special keywords oe reserved words which may not be used for any other
purpose in a QBasic Program.
b)
Write down the syntax and use to READ......DATA statement.
Syntax:
READ
Variable List
Statements
DATA
Constant
10. a)
Draw a flowhart to check whether the entered number is prime or not. 2
11. a)
Write the output of the program. 2
CLS
A=2
B=1
PRINT
A;
PRINT
B;
C=3
WHILE
C<=10
Z
= A + B
PRINT
Z
S=S+Z
A
= B
B
= Z
C=C+1
WEND
END
b)
Debug the following program. 2
REM
program for find maximum value
READ
x MX = X
For
i = 2 to 5
Read
X
Next
J
Print
“The maximum is”;MX
Data
20, 3, 27, 98, 70, 54, 1, 60, 34, 90
END
12. Read
the following program and answer the questions. 2
CLS
DIMA(10,
10), B(10, 10)
REM
INPTU MATRIX A
FOR
I = 1 TO 10
FOR
J = 1 TO 10
INPT
A (I, J)
NEXT
J: NEXT I
REM
INPUT MATRIX B
FOR
K = 1 TO 10
FOR
L = 1 TO 10
INPUT
B(K, L)
NEXT
L = NEXT K
REM
ADD A WITH B TO FORM MARIX C
FOR
I = 1 TO 10
FOR
J = 1 TO 10
C(I,
J) = A(I, J) + B(I, J)
PRINT
C(I, J)
NEXT
J : NET I
END
a)
What is the purpose of the program ?
The
purpose of the program is to display the output in tabular form using
multi-dimensional array.
b)
Count the number of varable used in the program.
The
numbers of variable used in program are 7.
13. a)
write program to find sum of following series S = 12 + 22 + 32 + ..........+102 1.5
b)
Write a progra to display the following series: 2,4 , 8, 16,......., 10th terms. 1.5
CLS
A
= 2
FOR
I = 1 TO 10
PRINT
A
A
= A * 2
NEXT
I
END
c)
Write a program to find sum of digits of any number. [Example: 125=1 + 2 + 5 =
8] 2
CLS
INPUT
"Enter any number"; N
S
= 0
WHILE
N <> 0
R
= N MOD 10
S
= S+ R
N
= N\10
WEND
PRINT
"Sum of digits="; S
END
d)
Write a program to print the word given by user in reverse order.
CLS
INPUT
"Enter any word"; A$
FOR
I = LEN(A$) TO 1 STEP - 1
B$
= MID$ (A$, I, 1)
C$
= C$ + B$
NEXT
I
PRINT
"Reverse Word is"; C$
END
End
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
Model Question Set 9
Group A :
“Fundamentals” [20 marks]
1. Answer
the following questions. 5×2=10
a)
List the main component used in each geenraiton of computer.
The
main components used in each generation of computer are:
i)
First generation computers - Vacuum
tubes
ii)
Second generation computers -
Transistors
iii) Third generation computers - IC chips
iv) Fourth generation computers - Microprocessors
v)
Fifth generation computers - Bio
chips
b)
Mention the features of the second generation computers.
The
features of second generation of computers are:
i)
They used transistors as main
electronic component.
ii)
They had more storage capacity.
c)
Differentiate between primary memory and secondary memory.
The
differences between primary and secondary memory are:
Primary Memory
|
Secondary Memory
|
1. It is a semiconductor memory.
|
1. It is magnetic and optical memory.
|
2. It is high speed and expensive.
|
2. It is low speed and cheaper.
|
3. It has less storage capacity.
|
3. It has high storage capacity.
|
d)
Define intput and output devices with suitable examples.
Input
device is the device that allows a user to enter a data and instruction into
the computer. Examples are mouse, keyboard, joystick, etc.
Output
device is a physical part of computer that displays the data or information
either in visual or audio format. Examples are monitor, printer, plotter, etc.
e)
What are the limitations of computer ?
The
limitations of computer are:
i)
Computers cannot take decisions on
its own.
ii)
Computers are unable to correct
wrong intructions.
iii) Computers have no feelings.
2. a)
Convert the following number. 2
i)
(178)10 into Octal ii)
(1045)8 into Binary
b)
Perform binary operation. 2
i)
11011001 + 101010 ii) 11011 ×
110
3. Match
the following pairs: 2
a)64
KB b)Soft copy
output
b)Monitor c)A-D, 1620
c)Slide
Rule a)65, 535 Bytes
d)BIT bmp
d)Binary Digit
4. Fill
in the blanks with suitable words. 2
a)
IC was patented by Jack Kilby in 1958 A.D.
b)
First electronic computer was ..............
c)
CU is the componet of processing unit.
d)
Word processing software is a packaged
software.
5. Give
the appropriate technical term: 2
a)
Any type of mistake caused by missing comma, mismatching semicolon, etc.
-
Grammatical mistake/error
b)
A device which uses thermal conductivity, electrostatic, laswer beam for
producing text or images.
-
Laser printer
c)
Removing the bug.
-
Debugging
d)
A specific software.
-
Application software
6. Give
the full form: 2
i)
CPU - Central Processing Unit
ii)
MDA - Monochrome Display Adapter
iii)
ENIAC - Electronic Numerical Integrator And Calculator
d)
LCD - Liquid Crystal Display
Group B :
DOS + Windows [5 marks]
7. a)
What is the purpose of Recycle Bin ? 1
The
purpose of recycle bin is to store the items that we delete from the windows.
b)
What is a system message ? 1
c)
List examples of any four Os. 1
Any
4 examples of os are:
i)
Windows XP
ii)
Windows Vista
iii) LINUX
iv) UNIX
d)
Write down the funcitons carried out by the following DOS commands:
i)
C:\MYDOCS>VOL D:
ii)
C:\>DIR A: \BACKUP\*.BAS
Group C :
HTML [5 marks]
8. a)
List the name of any four comercial websites name. 1
Any
4 commercial websites are:
i)
Amazon.com
ii)
eBay.com
iii) Hamrobazaar.com
iv) Daraz.com
b)
What are comments ? How can you add comments to yor HTML code ? 1
Comments
are the programmer-readable explanations or notations in the source code of a
computer program.
We
can add comments to our HTML code by usind comment tags.
c)
Write down the use of followign HTML tags with an example: 3
i)
<BR> - It is used for
inserting a line break.
ii)
<OL> - It is used to list the items in various sequential format.
iii)
<IMG> - It is used to display an image inside our web page.
Group D :
Programming [18 marks]
9. Answer
the following questions. 2
a)
Differentiate between LEFT$ and RIGHT$ functions. 1
The
difference between LEFT$ and RIGHT$ are:
LEFT$
|
RIGHT$
|
1. It returns specified number of character(s) from
the left side of supplied string and returns the value.
|
1. It returns specified number of character(s) from
the right side of supplied string and returns the value.
|
b)
Differentiate between SUB procedure ad FUNCTION procedure. 1
c)
Write down the use of followign statements. 1
i)
INPUT - It is used for accepting the value from the user in a variable through the keyboard during the
program execution.
ii)
PRINT - It is used to display output on the screen in the desired
alignment with some spacing in limited way.
10. Draw
a flowchart to display 1, 4, 9, 16, 25, .............., 100 2
11. a)
Write down the output of the following program 2
CLS
LET
A = 30
LET
B = 40
LET
D = AREA (A, B)
PRINT
D
END
FUNCITON
AREA (A, B)
PRINT
A, B
AREA
= A*B
END
FUNCTION
b)
Re-write the given programming correcting the bugs : 2
DECLARE
SUB Series ()
CLS
EXECUTE
Series
END
SUB
Series ()
REM
program to generate 3, 6, 9, 12 ............ up to 20th terms.
A=3
FOR
ctr=10 TO 1
DISPLAY
A:
A=A+3
NEXT
ctr
END
series ()
12. Read
the following program and answer the following questions. 4
CLS
PRINT
“Input any number*;
INPUT
N$
R$
= “ “
FOR
X = L TO 1 STEP -1
R$
= R$ + MID $(N$, X, 1)
NEXT
X
PRINT
“The reverse order is”; R$
END
a)
Mention the function of LEN, MID function.
LEN
- It is used to return the number of characters in a string.
MID$
- It is used to return the specified number of characters from the specified
location of a string.
b)
In this program, the value of N$ is used as a number of string. List it.
13. a)
Write a program in QBASIC to find the area of four wals of a room. [Hint A = 2h(l
+ b)] 2
CLS
INPUT
"Enter length"; L
INPUT
"Enter breadth"; B
INPUT
"Enter height"; H
A
= 2 * H * (L + B)
PRINT
"Area of 4 walls = "; A
END
b)
Write a program that asks your name and displays its reverse. 3
CLS
INPUT
"Enter your name"; A$
FOR
I = LEN(A$) TO 1 STEP -1
B$
= MID$ (A$, I, 1)
C$
= C$ + B$
NEXT
I
PRINT
"Reverse name is"; C$
END
c)
Wrie a progra to display the first 100 natural numbers. 3
CLS
FOR
I = 1 TO 100
PRINT
I
NEXT
I
END
End
