Multiple choice questions (1-1 Marks)
- Computer is a/an ___________.
a) Electronic machine
b) Mechanical machine c) Magnetic
machine d)All of the above
2. Computer can do
________________.
a) Calculations b)
Accept data and instructions c) Storage d) All of the above
3. Computer performs
its operations with high _____________.
a) Speed b)
Accuracy c)
Quality d) All of the above
4. In banks, computer
is used for.
a) Keeping
the bank safe b) Keeping
account records
c) Keeping bank clean d)
none of these
5. Time taken by
computer to do a work can be measured in.
a) Minutes b) Hours c) Milliseconds d) Days
6. In education, A
computer is used for.
a) Preparing Notes b) Preparing results c) Preparing Reports d) All of these
7. Which one of these
is a limitation of Computer.
a) Speed b) Accuracy c) No IQ d) Diligence
8. Which part of
computer system accepts input from the user?
a) Input unit b) output unit c) control unit d) none of these
9. Which is a part of
CPU?
a) Control unit b)
Memory unit c) ALU d) All of these
10. Which memory
stores permanent data in computer system.
a) Primary memory b)
RAM c)
Secondary memory d) All of these
11. Which is a most
powerful type of computer?
a) Mainframe computer b) Mini computer c) Micro computer d) Super computer
12. Which part of
computer system gives result as an output to the user?
a) Memory
b) Input unit c)
Control unit d) Output
unit
13. Screen appeared
after login of computer is called.
a) Start
menu b) Desktop c) Taskbar d) None of these
14. All the deleted
files go to.
a) My computer b) Network c)
Recycle bin d) All of above
15. Which part of
window remains visible all the time when we use other applications.
a) Recycle bin b) Desktop c)
Taskbar d) none
of these
16. Which one is an
example of Operating system:
a) Windows b) Android c) DOS d) All of these
17. To open a file we
can double click on.
a) File itself b)
shortcut of file c) Both A and
B d) None of these
18. The _________ bar is present at the top of
the paint window.
a) Title bar b) Status bar c)
Scroll bar d) Task
bar
19. ________ toolbar present in the title bar
by default. Its position can be changed either to below or above the ribbon
a) Quick access bar b) Status bar
c) Scroll bar d)
All of these
20. The first on the left of the Menu bar is
the _____ button.
a) Paint b) Help c) Close d) Minimize
21. Scroll bar is used to move the screen. It
is of ____ types..
a) 2 b)
3 c)
4 d) 5
22. With the help of __________ option we can
save a copy of picture with another.
a) Save as b) open c)
New d) Exit
22. The clipboard
menu has three options: cut, copy and ________.
a) Paste b)
Move c) Close d) Zoom
23. The top button, a
diamond shape with a line through it is _________ .
a) Paste b) Cut c) Copy d)
Crop
24. The ____________
tool can be used to draw Pentagon.
a) Triangle b)
Rectangle c) Pentagon d) Hexagon
25. The Eraser tool
erase the part of a picture with the ____ button of the mouse.
a) Left b)
Right c)
Scroll d)
None of the above
26. Color-2 is used
if we press with the ________ button of
the mouse pressed.
a) Left b)
Right c)
Scroll d) None of the
above
27. Computer is a
combination of hardware and _______.
a) Software b)
Application c)
Processor d) All of
these
28. Set of
instructions is called _____.
a) Software b)
Hardware c)
Program d)
Application
29. Group of programs
is called ______.
a) Hardware b)
Software c)
Processor d) None of
these
30. Software is of
_____ types.
a) 2 b)
3 c)
4 d)
5
31. Computer cannot
work without ______.
a) Word b)
Excel c)
Operating System d) PowerPoint
32. ____ is used to
click photos in computer.
a) Headphone b)
Web camera c) Speakers d) None of these
33. Bar Code Reader
Consist of ________
a) Sensor b)
Light c)
Heat d) Magnetic
33. _____ is a
pointing device.
a) Headphone b)
Keyboard c)
Mouse d) Web Camera
34. ______ is used to
add text and Picture in computer
a) Printer b)
Scanner c)
Speakers d)
Mouse
35. ________ keys are
used to move cursor in all directions
a) Arrow b)
Special c)
Function d)
Numeric
36. Monitor is soft
and is hard copy output device.
a) Printer b)
Plotter c)
Both of these d) None of these
37. _______ is used
to listen sound of computer.
a) Printer b)
Speaker c)
Microphone d) Mouse
38. ______ prints
output on paper.
a) Printer b)
Keyboard c) Mouse d) Speaker
39. _________ printer prints by joining dots.
a) Dot matrix b)
Inkjet c)
Laser d)
None of these
40. Monitors are
of _______ types
a) 2 b)
3 c)
4 d) 5
41. Headphones are
also called _______.
a) Phone b)
Earphone c) Both of
these d) None of these
Very short answer type questions(1-1Marks)
1. Which tool is used
to draw a square?
Answer: Rectangle
2. Which tool can be
used to erase a part of picture?
Answer: - Crop
3. Which tool allows
us for zoom-in-out-picture?
Answer: - Zoom
4. Which tool is used
to free hand writing?
Answer: - Pencil
5. What tools can be
used to write text in our drawings?
Answer: - Text tool
6: Which part of CPU
connects the other parts like Processor, Hard Disk, Ram etc?
Answer: Motherboard
7: What we call a set
of instructions given to a computer?
Answer: Program
8: Which part of
computer cannot be touched but felt?
Answer: Software
9: What are two types
of Software?
Answer: System software and Application software
10: Which type of
software’s is expensive?
Answer: System Software
11: Which device is
used to capture pictures in computer?
Answer: Web Camera
12: Which part of
Paint window is used to move screen?
Answer: Scroll Bar
13: How many function
keys are there on a keyboard?
Answer: 12
14: Which device is
used to control video games?
Answer: Joy Stick
15: Which keys are
used to move cursor?
Answer: Arrow
Write the Shortcut Keys for following(1-1Marks)
- To create a New file - Ctrl+N
- To Open an existing file - Ctrl+O
- To Save a file - Ctrl+S
- To Print a file - Ctrl+P
- Undo - Ctrl+Z
- Redo or Repeat - Ctrl+Y
Write full forms(1-1marks)
- ALU - Arithmetic
logic unit
- CPU - Central
processing unit
- LCD - Liquid
crystal display
- RAM - Random
access memory
- ROM - Read
only memory
- CU - Control
unit
- MU - Memory
unit
- IPO - Input
Processing output
Short answer type questions(3-3marks)
Question: 1. Write
the names of the parts of the CPU?
Answer: - The central processing unit of a computer system
is divided into three parts: -
1. Memory unit
2. Control unit
3. Arithmetic and logic unit
Question: 2. What are
the types of computer memory?
Answer: - There are two types of computer memory: -
1. Primary memory
2. Secondary memory
Question: 3. What are
secondary storage devices?
Answer: - Secondary storage devices store all the data that
is not currently in the primary storage or main memory of the computer. This is
the memory of the computer system, with which the CPU does not have direct
contact. It is used to store data for a long time and the data stored in it is
not destroyed even when the power goes out. It is also called non-volatile
memory. It is not very expensive. It has a high storage capacity. It can be
easily carried from one place to another.
Question:4. What is
the function of ALU?
Answer:- This unit performs arithmetic and logical
functions. ALU is also called the building block of the central processing unit
of a computer system, because instructions are followed in this block. Most of
the work in a digital computer is done on the basis of logic and involves many
calculations to process. This part of the computer system is built inside the
microprocessor.
Question:5. What is a
microcomputer?
Answer:- These computers were so small that they could be
easily kept on a desk. They are also called computers on a chip. These
computers perform about 1 lakh calculations per second. These computers are
used in small offices, schools, small businesses, and other areas of work.
Question:6. What are
the different types of computers?
Answer:- Computers are of four types based on their speed,
memory, processing power and storage capacity:-
1. Microcomputer
2. Minicomputer
3. Mainframe computer
4. Supercomputer
Question 7: Write the
names of any three window applications?
Answer:- The names of the three window applications are as
follows:-
1. Notepad
2. Wordpad
3. Paint
4. Calculator
Question 8: Write the
names of any three icons?
Answer:- The names of the three icons are as follows:-
1. My Computer
2. Network
3. Recycle Bin
4. User Files
Question 9: Write the
names of the desktop components?
Answer:- Names of the parts of the desktop:-
1. Icons
2. Shortcuts
3. Wallpaper
4. Taskbar
Question 10: What is
the desktop?
Answer:- The first screen that appears after the login
process is complete is called the desktop, it can also be called the primary
controller of the computer. With the help of the desktop screen, any
application or program can be run, or any other work can be done as per the
requirement.
Question:11. What is
Paint?
Answer:- MS Paint is a drawing tool, which is used to create
or draw pictures. The file created in Paint is also called a bitmap file. The
extension of the file saved in Paint is .bmp.
Question:12. How is
MS Paint started?
Answer: The steps to start MS Paint are as follows:
1. Click on the Start button.
2. Click on All Programs.
3. Click on Accessories option.
4. Click on Paint option.
Question:13. Write
the names of the parts of the Paint window?
Answer: The Paint window has several parts. The names of the
main parts are as follows:
1. Toolbar
2. Quick Access Toolbar
3. Tabs and Ribbon
4. Scroll Bar
5. Work Area or Drawing Area
6. Status Bar
7. Zoom Slider
Question:14. What is
Work Area?
Answer: Work Area is also called Drawing Area. It is the
empty space between the Paint which is used to create images. In other words,
work areas are the places where beautiful and attractive drawings can be made.
Question:15. Explain
the use of save command?
Answer: Using save command, we can save the picture or
painting created in MS Paint. To save the picture created in MS Paint, use the
save option from the file menu or use the shortcut key Ctrl+S.
Question:16. How many
types of scroll bars are there?
Answer: Scroll bars are used to scroll the screen. They are
of two types:
1. Horizontal scroll bar
2. Vertical scroll bar
Question:17. Explain
input devices?
Answer: Input device is a hardware device that is used to
input data, instructions, and information into the computer. If the CPU is the
brain of the computer, then the input devices are the eyes and ears of the
computer, which convey information to it.
Question: 18. Write
the names of any six input devices?
Answer: The names of the six input devices are as follows:-
1. Keyboard
2. Mouse
3. Scanner
4. Track ball
5. Joystick
6. Web camera
Question: 19. Write a
note on Joystick?
Answer: Joystick is an input device. Joystick has a base and
a stick, which can be rotated in any direction. Due to its flexible movement,
it has more control than the keyboard. It has a lever, which rotates in all
directions and controls the direction of the pointer. Joystick is used to play
video games. Joystick has more than one button which is called push button.
Question: 20. What
are output devices?
Answer: An output device is a computer hardware device,
which is used to present the result produced after data processing as hardcopy
or softcopy. The result visible on the monitor is called softcopy and the
result printed on paper through a printer is called hardcopy. These devices
convert electronic information into human-readable information.
Question: 21. What is
a speaker?
Answer: A speaker is an output device, which receives input
audio from the sound card present in the computer and outputs the audio output
in the form of sound waves as sound. Speaker is used to listen to sound from a
computer or mobile, speakers are available in many shapes and sizes.
Question: 22. Where
is a projector used?
Answer: A projector is an output device, which works to
display any kind of image or video from a computer on a white screen or wall or
any other object. A projector is used in offices, cinema halls, colleges and
schools to play e-content. It is used to convey the presentation being
presented through any image or video to every participant and to explain it.
Question: 23. What
are the types of printers?
Answer: There are three types of printers:-
1. Dot-matrix printer
2. Inkjet printer
3. Laser printer
Question: 24. Write
notes on a printer?
Answer: A printer is a hard copy output device, it is used
to print data and information received from a computer on a paper. They can
print black and white as well as color documents. The speed of a printer is
measured in characters per second, lines per minute, and pages per minute, and
the quality of a printer is measured in dots per inch.
Question: 25. Name
any three output devices?
Answer: Each output device has its own specific function,
and some of the commonly used output devices are as follows:-
1. Monitor
2. Speaker
3. Headphones
4. Printer
5. Plotter
6. Projectors
Long Answer Questions.(4-4 marks)
Question 1: What are
the features of a computer?
Answer:- Each feature of a computer motivates us to use a
computer, which are as follows:-
1. Speed:- The
main reason for using a computer is the speed of the computer. It completes
even complex calculations in a very small fraction of a second. The speed of
work done by a computer is measured in 1000th of a second, which is known as a
millisecond.
2. Accuracy:-
Accuracy is also an important feature of a computer. The confidence that the
result produced by a computer is correct indicates its accuracy.
3. Reliability:-
The assurance that the result produced by a computer is 100% correct and that
we do not need to re-check this result indicates its reliability.
4. Tirelessness:-
The computer performs the first and last calculations with the same accuracy
and speed. Computer does not get tired like human while working. No matter how
long the computer works, it gives us correct and accurate results.
5. Automation:-
The computer does not need any kind of help while processing. Once the
instructions are given, it continues to work automatically till the end and
finally provides the result to the user.
6. Storage:- The
storage capacity of the computer is very high. Every computer has a hard disk
device installed, which is capable of storing every type of data. In this, we
can store characters, sounds, videos, programs, animations etc. in the form of
data.
Question 2: Explain
any 5 application areas of the computer?
Answer:- The fields of application of computer mean all
those fields in which computer is used, which are as follows:-
1. Education:- In
the field of education, computer is used by students for preparing notes,
drawing, making projects, studying through e-content, etc., and teachers use
computer for preparing results, making time tables, making report cards, etc.
2. Entertainment:-
Computer is a great tool for entertainment. We can listen to songs through
computer, watch movies, play games, enjoy unrealistic 3D effects, and also
present new stories and funny scenes in the form of cartoons. This field of
multimedia plays an important role in learning methods in sports.
3. Sports:-
Computer is used in the field of sports to increase the performance of players.
To continue improving the player's performance, his daily record is stored in
the computer. Using the virtual 3D station, games played on the field can be
played for practice in a closed room.
4. Hospital:- In
the hospital, the patient's record is recorded in the computer. With this, the
health care of the patient can be easily taken care of. The calculation of the
patient's current medications and the effect of each medication on the
patient's health can be easily kept. The computer is also used to perform
complex tests in the laboratory.
5. Bank:- A bank
is a place where most of the work in the bank is related to depositing and
withdrawing money from the account. Every such work is related to data
processing, and a computer is required to do such processing correctly. This
makes the management of all the accounts very easy and efficient.
Question 3: What are
the limitations of the computer?
Answer:- A computer is capable of doing most of the work,
but being a machine, it is unable to do many other things. Such tasks are
called the limitations of computers, which are as follows:-
1. A computer cannot take any decision on its own.
2. A computer cannot correct any wrong instruction.
3. A computer cannot do any work without the instructions of
the user.
4. A computer does not have emotions and understanding.
5. It does not have any knowledge and experience like a
human.
Question 4: What is
meant by portable computing devices? Explain any three such devices?
Answer:- All those devices that process data and which can
be easily carried from one place to another are called portable computing
devices, which are as follows:-
1. Smart phone:-
A smart phone is a portable device, which is used to make calls and process
data digitally. Smart phones provide us with the facility of cameras and more
data storage. Smart phones are used for education, business, and entertainment
and playing games.
2. Tablet Computer:-
A tablet computer is a thin and portable computer. It runs on a battery and has
a touch screen that helps in using it. In a tablet, we can write without a
keyboard.
3. Palmtop Computer:-
A palmtop computer is a computer that can be easily operated by keeping it in
the palm of your hand. This type of computer has a small screen and a keyboard.
It is not very popular due to its limited uses.
Question 5: Tell us
about the use of computers?
Answer:- Computers are used for the following tasks:-
1. Computers are used to perform mathematical calculations.
2. We can play games using computers.
3. We can use computers to draw.
4. We can listen to songs and watch movies using computers.
5. We can use computers to prepare and print books and
newspapers.
6. We can reserve tickets for trains, buses and planes with
the help of computers.
7. We can check the timetable of trains, buses and planes
with the help of computers.
8. We can check the weather of any place before going to
that place with the help of computers.
9. We can prepare students' results, time-tables and reports
with the help of computers.
10. In the computer, we can also save important data for
future.
Question: 6. what is
the difference between application software and system software?
Answer: System Software and Application Software are:-
1. System software is necessary to run the computer, without
it the computer cannot work, whereas Application software is not necessary to
run the computer, without it the computer can work.
2. System software is complex to create and requires
experience to create it, whereas Application software is simple to create and
can be created by a person with less experience.
3. System software is more expensive, whereas Application
software is less expensive.
4. System software directly interacts with the hardware and
depends on the operating system, whereas Application software does not directly
interact with the hardware and depends on the system software.
5. Examples of system software: Windows, Linux etc, whereas
Examples of application software: Paint, Word, Excel, PowerPoint etc.
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