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
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Secondary Memory
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1. It is a semiconductor memory.
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1. It is magnetic and optical memory.
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2. It is high speed and expensive.
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2. It is low speed and cheaper.
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3. It has less storage capacity.
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3. It has high storage capacity.
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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$
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RIGHT$
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1. It returns specified number of character(s) from the left side of supplied string and returns the value.
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1. It returns specified number of character(s) from the right side of supplied string and returns the value.
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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
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