Friday 13 March 2020

Solution of Computer Nine [PABSON (Morang) 2074]


PABSON (Morang) 2074
Group “A”
[Fundamentals – 20 Marks]
1.       Answer the following questions:
a)       What is a computer system? Enlist two output devices of a computer system.
Ans: A computer system is the combination of hardware , software, and user. Two output devices are keyboard and mouse.
b)      Define generation of computer. List any two features of the first generation of computers.
Ans: The classification of the computer according to their technology used to operate into five distinct categories is called generation of computer. The two features of 1st generations are as follows
1. They are in big size
2. They used vaccume tube as main components.
c)       What is e-Government? Mention advantages of e-Government.
Ans: : e-government or electronic government is the governement that uses information and communication technology (ICT) to provide and improve government services to the citizens, businessmen and the government offices. The main advantages of e-government are
1. To support and simplify the governance to citizen, business, employee and government.
2. To provide the online services to citizen.
3. To improve the working system of bureaucracy.
4. To make a paperless working system.     
d)      Define software. Name the different types of system software.
Ans: The collection of program to perform a specific task is called software. Different types of system software are as follows
1. Operating system software
2. Language processors
3. Utility Software
2.       Mention true or false or against the following statements:
a)       The secondary memory is the long- term memory used to store programs and data for future reference.(T)
b)      1 MB (mega byte) is a unit of computer memory equals to 1,024 kb.(T)
c)       All digital computers are special purpose computer. (F)
d)      E-commerce allows people to buy an sell different products and services online.(T)
Mention the full-form of the following abbreviations:
a) ATM -Automated Tailor Machine
b) PDA-Portable Document Format
c) GIGO- Garbage In Garbage Out
d) TB- Tera Byte

3.       Choose the correct answer from the given option:
a)       The first integrated circuit was developed by:
4.       Mention the technical term of the following definition:
a.       The main circuit of the computer where different components are installed. Mother board
b.       The main information processor in digital computer capable of executing a program. Microprocessor
c.       A pointing device which is just like an inverted mouse. Trackball
d.       The founder of IBM. Herman Hollerith
5.       A
a)       Perform the following binary calculations:
a.       (1011101)2 + (1110111)2           b. (11101)2 * (111)2
b)      Convert the following as indicated:
a.       (CAD)16 into Octal                    b. (564)8  into Decimal
6.       Name any two system files required for booting a computer.
            1. io.sys           2. msdos.sys
7.       Mention the function of the following commands:
a)       C:\>DATE 11-11-2018
To change the date as 11th Nov 2018
b)      D:\COPY CON REKO.TXT
To create a file as REKO.TXT in D drive.
8.       Answer the following questions:
a)       Define recycle bin.
Ans: Recycle bin is a program to store the deleted files and folders in Windows operating system.
b)      What is desktop?
Ans: Desktop is the first screen of Windows where icons and the other graphical option are display.
9.       Answer the following questions:
a)       Why is <BR> tag used?
Ans: It is used to break the line in html.
b)      Which attribute of BODY tag is used to change the text color?
Ans: text attribute is used to change the text color.
c)       Mention any two tags for formatting text.
Ans: Two formatting tages are <p> and <b>
10.   State true or false or against the following statements:
a)       <HR> tag is used for drawing vertical line.(F)
b)      <P> tag is an empty element.(F)
c)       <Table> tag is used for creating table in HTML.(T)
d)      <H1> is the smallest heading level.(F)
11.   Answer the following questions:
a)       What is keyword?
Ans: Keyword is the predefined word in programming language which perform specific function.
b)      Define nested loop.
Ans: A loop inside another loop is called nested loop. In nested loop two loops are used together.
c)       List any two naming conversation of a variable.
Ans: 1. A variable must start with an alphabets.
        2. We can not used special symbol in variable name.
12.    
a)       Draw a flowchart to enter an integer and check whether it is even or odd.
b)      Mention the function of the following functions with syntax.
i. LEFT$()- It is used to display the specifice characters from left side
syntax: LEFT$(sting variable,n)
ii. SIN() - It is used to display the sin value of any angle
syntax : SIN(angle in degree)
13.   Mention the output of the given program.
a)       CLS
FOR i = 12 TO 7 STEP -2
   PRINT (i ^ 2) + 2
NEXT i
END
The output is
b)      Debug the given program.
REM TO DISPLAY SUM OF NUMBERS FROM 1 TO 100
CLS
LET S = 0
I= 1 TO 100
S=S+I
NEXT I
DISPLAY S
END
14.   Analyze the program and answer the following questions:
CLS
INPUT "ENTER A NUMBER"; N
IF N < 0 THEN
    PRINT "NEGATIVE NUMBER"
ELSE IF N > 0 THEN
        PRINT "POSITIVE NUMBER"
    ELSE
        PRINT "ZERO NUMBER"
    END IF
    END
A)     What would be the output, if the user’s input is -8?
NEGATIVE NUMBER
B)     How many variables are used in the program?
ONE variable i.e. N
C)     How many operators are used in the program?
One Operator i.e. relational operator  >
15.    
a)       WAP to display the Fibonacci series:
0, 1 , 1, 2 , 3 , 5, 8, 13 , ….. up to 10th terms.
CLS
A=0
B=1
FOR I=1 TO 5
PRINT A;B
A=A+B
B=A+B
NEXT I
END
b)      WAP to input three different names and display the longest name.
CLS
INPUT "ENTER THREE WORDS";A$,B$,C$
IF LEN(A$)>LEN(B$) AND LEN(A$)>LEN(C$) THEN
PRINT "LONGEST WORD";A$
ELSEIF LEN(B$)>LEN(A$) AND LEN(B$)>LEN(C$) THEN
PRINT "LONGEST WORD";B$
   ELSE
   PRINT "LONGEST WORD";C$
   ENDIF
   END

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