Let's Log In Computer Science Book 6 Revised (2078).indd

Vedanta LET’S LOG in Computer Science _ Book 6
You can change the font size and color from Text tab. You can also format
the text using Bold, Italic, and Underline buttons shown on the Font
group of Text tab.

Brushes

Brushes let you paint in various widths and textures.

Brushes Tab

Choose an appropriate brush from Brushes drop down
arrow and use it in the drawing area.

Colors

The Colors group has three parts: Boxes showing the active colours—
Color 1 and Color 2, the Color Palette and the Edit Colors button.

Colors group 151

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The Colour Boxes

Color 1 is the Foreground Color, and is always black when you
open Paint or open a different Paint page.

Color 2 is the Background Color, and is always white when you
open Paint or open a different Paint page.

To change color, make sure that its Color box is in focus. If it is not, simply
click on it and then, in the Palette, click on the color that you want.

When you have an active shape or some active text on your page, hovering
your cursor over a color in the Color Palette gives the shape or text the color
temporarily. You can click to apply the change if you like it.

Eraser tool Eraser tool

The Eraser tool is used to erase a part of your drawing.

The ‘eraser tool’ is simple to use. Just click on the eraser
icon to select it, and then click on the part of the image
that you want to erase. ‘Erasing’ changes the erased part
of the image back to the background color of the image file.
This is usually white. But it can be changed to other colors
using the ‘color palette’.

Saving Image

Saving is done frequently to
make sure that you do not
accidentally lose your work.
For this in MS-Paint, choose
File tab and click on Save.
This saves all of the changes
you made on the picture since
the last time you saved. For
the first time made drawings,
you need to give filename to
save it.

Click on File tab and click on
Save sub-menu.

Save As dialog box

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A Save As dialog box appears.
Select the target folder where you want to save.
Type filename in File name text box.
Choose appropriate file type. The default file type is .png.
Click on Save.

Closing the MS-Paint program

Click on File tab.
Click on Exit.

Exercise

1. State whether the following statements are True or False:

a) The term Computer Graphics includes everything that is
presented through images.

b) Music gives visual feedback to the user.

c) MS-Paint software is used for drawing in computer.

d) Tool box in MS-Paint contains 15 tools.

e) All shapes cannot be drawn using MS-Paint.

f) It is not possible to erase the mistakes made during the
drawing in MS-Paint.

2. Fill in the blanks.

a) ........................... deals with the image and its presentation in computer.
b) ........................... is simply a picture or diagram that has been created on a plane

surface.
c) We have to click on ........................... tab to save our files.
d) ........................... must be done frequently as it prevents from losing your work.
e) If you make a mistake or need to change part of a picture, you can use the

........................... tool.
f) The default file type of MS-Paint is ........................... .

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3. Answer the following questions.

a) What is Computer Graphics?
b) Define the term Drawing.
c) What is MS-Paint? How can you run MS-Paint in computer?
d) Draw a well labeled diagram of Paint window.
e) Mention the different groups available in Home tab.
f) Explain the process to type a text in MS-Paint.
g) How can you erase the mistakes made while drawing in MS-Paint? Explain.
h) Explain the process to save picture drawn in MS-Paint.
i) Differentiate between Save and Save As commands.

4. In the LAB

a) Prepare the drawings below using MS-Paint, color it, and list the name of tools
used to make those drawings.

b) Today is your friend’s birthday. Design a Birthday Greeting card in MS-Paint.

c) Design a banner on “Road Safety” using MS-Paint.

d) Draw the given pictures in Paint using different tools.

Anup's home My home Laxmi's home

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Lesson

14 Introduction to Multimedia

Introduction

Today, people commonly use speech, sounds, music, text, graphics, animation,
and video to convey message. There are all different types of media (the
term media is the plural of medium), and each has traditionally been used to
present certain types of message. Long ago, people discovered that messages
are more effective (i.e., the audience understands and remembers them more
easily) when they are presented through a combination of different media.
This combination is known as the term multimedia where more than one
type of medium is used at the same time.
The term “Multimedia” is made up of two words: ‘Multi’ and ‘Media’.
‘Multi’ means many and ‘Media’ means all the modes of communication,
such as sounds, graphics, animations, text, video clips, etc. Computer
with the capability of processing various modes of communication is called
a Multimedia computer.

Multimedia

Multimedia Computer System

A multimedia computer system is a computer operated system having
capability to integrate two or more types of media (text, graphics, image,
audio, and video) for generating, storage, representation, manipulation,

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and access of multimedia information. In general, data size of multimedia
information is much larger than textual information because representation
of graphics, animation, audio, or video media in digital form requires much
larger number of bits than it is required for representation of plain text. Due
to this, multimedia computer systems require:

1. Faster CPU (for quicker processing of large amount of data)
2. Larger storage devices (for storing large data files),
3. Larger main memory (for running programs with large data size),
4. Good graphics and
5. Audio I/O devices (for playing any audio)

Advantages of Multimedia

Teaching and learning can be more interesting and interactive.
Multimedia helps to share, views, ideas, and information in more
effective and attractive ways.
Multimedia helps to make advertisement more attractive.
Multimedia can be used to clarify any concept.
Multimedia presents messages by adding interesting sounds and
visuals.
Complex problem can be presented in a simplified way.
Game and movies can be made more interesting.
Multimedia helps students to learn themselves using multimedia CDs.

Components of Multimedia

It is important to use all components of multimedia effectively to use
multimedia as an effective means to convey information. The various

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components that constitute multimedia are text, graphics, sound,
animations, and video.

Text

Text is the primary component of multimedia. Alphanumeric and special
characters are used to present information in the from of text form. Most of
the information is conveyed through the text. It can be combined with other
media in powerful and meaningful ways to present information.

Graphics horse

Graphics is an important component of
multimedia because a picture is a powerful
way to illustrate information. For example, in a
multimedia application for educating children,
if photograph of a horse is displayed along with
its textual description, it illustrates the message
much more effectively. Without the photograph,
it becomes very difficult to explain how a horse
looks like using only text.

Sound

Sound is yet another important component of multimedia because in many
cases, sound can substantially reinforce our understanding of information
presented in other ways. In some cases, sound is the only way to provide
desired information. For example, in a multimedia application for education,
voice explanation can be added in an animation clip to describe its content.
It is nearly impossible to provide an accurate description of horse’s neigh,
lion’s roar, or bird’s chirp using text and graphics only. Sound helps in such
context.

lion’s roar horse’s neigh bird’s chirp

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Animation

Animation is an important component of multimedia because just as a picture
is a powerful way to illustrate information. A small animation clip is even
more powerful and useful for illustrating concepts involving movement. It is
used commonly in advertisements, cartoon films, video games, etc.

Advertisements Cartoon films Video games
Video
Video

Like animation, computer video deals with
recording and display of a sequence of
images at a reasonable speed to create an
impression of movement. Each individual
image of a sequence of images is called
a frame. Like animation, video is also
an important component of multimedia
because it is very useful for illustrating
concepts that involve movement.

Multimedia Software

The following table lists the different multimedia software and their uses in
various application fields.

Animator Pro Adobe Photoshop Macromedia Flash MS-Powerpoint MS-Word

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Multimedia Software Uses
Adobe Illustrator, Adobe Photoshop Creating graphics
Macromedia Flash, Animator Pro Creating 2D animations
3D Studio Max Creating 3D animations
Microsoft PowerPoint Creating Presentations
Macromedia Director Authoring multimedia
Adobe PageMaker, Microsoft Word Text editing and publishing
Sound Forge Sound editing
Adobe Premier Video editing

Uses of Multimedia

Multimedia creates a multi-sensory learning environment. Education,
business, advertising, games, movies, medicine, virtual reality, etc. are
some of the major fields benefitted by the impact of multimedia.

Education

In education, multimedia is used to produce
computer-based training courses (CBTs)
and reference books like encyclopedia.
A CBT lets the user go through a series
of presentations, text about a particular
topic, and associated illustrations in
various information formats. Educational
CDs are available for different subjects.

Playing Games some educational CDs

The on screen 3-D games we play in computer are examples of multimedia.
Some examples of computer games are: Call of Duty, Need for Speed,
Batman Arkham Asylum, Battlefield Bad Company, Tomb Raider, Mafia 2,
FIFA, Angry Birds, etc.

Video games 159

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Business

Businesspersons use multimedia to display their product to their customers
in the form of attractive and interesting presentations.

Advertising

Multimedia is extensively used in advertisement. By
the use of multimedia, the products and service are
advertised among different users in an attractive and
systematic way.

Watching Movies Advertising

All the cartoons and animated movies that we watch are made with the help
of multimedia computer.

The Lion King Clara IceAge Angry bird

Medicine

In medicine, doctors can be trained by showing at a virtual surgery or they
can simulate how the human body is affected by diseases caused by viruses
and bacteria, and then develop techniques to prevent it.

POINTS TO REMEMBER

Multimedia is made up of two words: ‘Multi’ and ‘Media’.
‘Multi’ means many and ‘Media’ means all the modes of communication.

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Multimedia is defined as the combination of multiple media such as text,
graphics, sound, animations, and video.

A multimedia computer system is a computer having capability to integrate
two or more types of media.

In general, data size of multimedia information is much larger than textual
information. Due to this, multimedia computer systems require faster CPU,
larger storage, larger memory, good graphics, and audio I/O devices.

Some common multimedia applications are multimedia presentations,
learning, video games, special effects in movies, multimedia advertisements,
and multimedia conferencing.

Multimedia is used for various purposes like Education, Advertising, Playing
Games, Business, Watching Movies, Medicine, etc.

xercise

1. Answer the following questions:

a) What is multimedia? Explain with some examples.
b) What is a multimedia computer system?
c) Write the name of any four multimedia software required to play multimedia

products.
d) List the components of multimedia.
e) What is computer animation?
f) Write any four application areas where multimedia is used.
g) Write the importance of multimedia in education.

2. Fill in the blanks.

a) Sound cards and speakers are used for producing ...........................
b) ........................... refers to simulation of movement created by displaying a

series of pictures one after the other.
c) ........................... is a multimedia software for creating 3D animation.
d) Adobe Premiere is a ........................... editing software.

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3. State whether the following statements are True or False:

a) You cannot play audio or video on your computer.
b) The computer system must have high speed microprocessor and

a large RAM to run multimedia software.
c) Multimedia uses more than one media.
d) Text is the primary component of multimedia.
e) Adobe Illustrator is not a multimedia software.
f) Using animation at any event can be explained more clearly.
g) Multimedia programs are interactive.
h) Multimedia technology is used in limited areas.
i) The 3-D games we play on the computer are examples

of multimedia.
j) Multimedia helps to make advertisement more attractive.

Activity

1. Paste the pictures – Uses of multimedia in various fields.

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Abbreviations:

1 GIGO : Garbage In Garbage Out

2. KB : Kilobyte

3. MB : Megabyte

4. GB : Gigabyte

5. TB : Terabyte

6. ATM : Automated Teller Machine

7. CAD : Computer Aided Design

8. CD-ROM : Compact Disc Read Only Memory

9. DVD : Digital Versatile Disc

10. RAM : Random Access Memory

11. ROM : Read Only Memory

12. CPU : Central Processing Unit

13. ALU : Arithmetic and Logical Unit

14. CU : Control Unit

15. MU : Memory Unit

16. USB : Universal Serial Bus

17. OS : Operating System

18. VDU : Visual Display Unit

19. CRT : Cathode Ray Tube

20. LCD : Liquid Crystal Display

21. LED : Light Emitting Diode

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22. PROM : Programmable Read Only Memory

23. EPROM : Erasable Programmable Read Only Memory

24. EEPROM : Electrically Erasable and Programmable Read
Only Memory

25. RPM : Revolutions Per Minute

26. GUI : Graphical User Interface

27. ICT : Information and Communication Technology

28. VOIP : Voice Over Internet Protocol

29. ISP : Internet Service Provider

30. URL : Uniform Resource Locator

31. IBM : International Business Machines

32. PC : Personal Computer

33. DOS : Disk Operating System

34. WWW : World Wide Web

35. URL : Uniform Resource Locator

36. ISDN : Integrated Service Digital Network

37. Mac OS : Macintosh Operating System

38. IOS : iPhone Operating System

39 IPO : Input Process Output

40. OLED : Organic Light Emitting Diodes

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Model Questions I

COMPUTER SCIENCE

Class: Six

Time: 1.5 hrs. F.M.: 50

Group ‘A’ – [25 marks]

‘READING & WRITING’

1) Answer the following questions. [5x2=10]
a) Who is known as the father of modern computer and why?
b) What are the supercomputers and where are they used?
c) List out the different components of Computer Hardware.
d) Define Computer Software with examples.
e) What is text formatting?

2) Fill in the blanks. [5x1=5]

a) Computer is derived from the Latin word .......................... .

b) The smallest unit of memory is .......................... .

c) .......................... performs all the arithmetic operations.

d) The white drawing area of MS-Paint is called .......................... .

e) .......................... is designed for the maintenance of the computer.

3) Write ‘True’ or ‘False’ for the following statements. [5x0.5=2.5]

a) The set of instruction given to the computer is called Program.

b) Control Unit is used to save the data and instructions.

c) Flash Drive is not a portable device.

d) Operating System provides environment to run other software.

e) MS-Word is a drawing program.

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4) Match the following [5x0.5=2.5]
Column ‘A’ Column ‘B’
i. Controls overall operations
a) Hard Disk ii. Converts one line at a time
b) RAM iii. Stores data permanently
c) Control Unit iv. Converts whole program at once
d) Compiler v. Volatile Memory
e) Interpreter vi. Non-Volatile Memory

5) Write the full forms of: [5x1=5]
a) CRT
b) DOS
c) ALU
d) DVD
e) ROM

Group ‘B’ – [12.5 marks]

‘ANALYTICAL’

6) Write four basic features of MS-Word. [2]

7) Choose the correct answer. [6x0.5=3]
a) 4 bit is equal to .........................
i) 1 byte ii) 1 nibble
iii) 1 word iv) None of them

b) The process of transferring raw data into useful information is called ..............

i) Input ii) Output

iii) Processing iv) Storage

c) The example of Operating System is .........................

i) MS-Word ii) Photoshop

iii) Both (i) and (ii) iv) None of them

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d) ......................... is located just below the title bar.

i) Ribbon ii) Menu Bar

iii) Status Bar iv) Ruler

e) You can draw free-hand drawing with the help of ......................... tool.

i) Pencil ii) Brush

iii) Both (i) and (ii) iv) Text

f) ......................... command reverses the last command or action.

i) Undo ii) Redo

iii) Cut iv) Paste

8) Write the shortcut keys for the following actions [5x0.5=2.5]
a) Redo last action
b) Open a file
c) Highlight all
d) Underline selected text
e) Paste selected text

[‘12.5 marks for Internal Assessment’]

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Model Questions II

COMPUTER SCIENCE

Class: Six

Time: 1.5 hrs. F.M.: 50

Group ‘A’ – [25 marks]

‘READING & WRITING’

1) Answer the following questions: [5×2=10]
a) List out the four different characteristics of computer.
b) Define software with its types.
c) Why is RAM called volatile memory?
d) What is recycle bin?
e) Write the importance of ICT in education.

2) Fill in the blanks [6×0.5=3]

a) Computers do not have their own ........................

b) Keyboard is the example of ........................ device.

c) The ........................ bar is located at the bottom of desktop.

d) The ........................ Command is used to reverse the previous task.

e) A ........................ tool works as a pencil while drawing.

f) ........................ is a set of moral principle that handles the use of computers.

3) Write 'True' or 'False' for the following statements. [6×0.5=3]
a) Computer takes a long time for calculation.
b) Computer program is collection of instructions.
c) Flash drive is small enough to be carried in a pocket.
d) Windows 7 is a GUI based operating system.
e) MS-Word can be used to type letters, paragraphs, etc.
f) We can use computer to harm others for our benefit.

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4) Give the full form of the following abbreviation. [5×1=5]
a) ATM b) RAM c) CD - ROM d) USB
e) ICT

5) Match the following. [4×1=4]
Group ‘A’ Group ‘B’
i) Helps to enter data and instructions.
a) System software ii) Huge amount of storage.
b) Assembler iii) Control overall operation of the computer.
c) Storage iv) Hard-copy output
d) Input v) Translates instruction into machine language

Group ‘B’ – [12.5 marks]

‘ANALYTICAL’

6) Categorize the following into hardware and software by making table.
[8×0.5=4]

Mouse, windows, MS-Pant Speaker,
Printer, MS-Word, Monitor, Typing Tutor

7) Differentiate between cut and copy function with their shortcut key. 2

8) List out any four mostly useful short cut keys and their function related to 2
MS-Word 2007.

9) Which storage device would you use to carry your school project? Why? 2

10) Draw the picture of finger chart for typing. 2.5

[12.5 marks for internal assessment]

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Model Questions III

COMPUTER SCIENCE

Class: Six

Time: 1.5 hrs. F.M.: 50

Group ‘A’ – [25 marks]

‘READING & WRITING’

1) Answer the following questions: [5×2=10]
a) What is an operating system?
b) What is cell pointer?
c) Define the term Multimedia?
d) What is a Web Browser? Give one example.
e) Define cyber-crime and cyber-law.

2) Fill in the blanks: [5×1=5]
a) ________ cannot be touched or felt.
b) The ________ bar is located at the bottom of the desktop.
c) The ________ command is used to reverse the previous task.
d) MS-Power point is a _______ software.
e) Internet connection is provided by ________.

3) Write ‘True’ or ‘False’ for the following statements: [5×0.5=2.5]

a) Software is the instructions that are given to the computer to do special work.

b) Windows operating system was developed by Microsoft Company.

c) Presentation is the way of showing information to the audience.

d) ICT does not help to improve the quality of teaching and learning.

e) We cannot forward e-mail to others.

4) Match the followings. [5×0.5=2.5]

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Column A Vedanta LET’S LOG in Computer Science _ Book 6
a) Internet Explorer
b) Nepal telecom Column B
c) Chat i) Website
d) www.kavya.edu.np ii) Send and receive message
e) E-library iii) Digital study
iv) Web Browser
v) ISP
vi) Index page

11) Write the full forms of: [5×1=5]
a) ROM c) USB d) GUI
e) ICT f) E-mail

Group ‘B’ – [12.5 marks]

‘ANALYTICAL’

9) Write any four commandments of computer ethics. [2]

10) Give technical terms for the following. [4×1=4]
a) The small picture representing a specific item on desktop.
b) The collection of worksheets.
c) The tool used to draw different shapes in MS-Paint.
d) The network of networks.

11) Choose the correct answer. [5×0.5=2.5]

a) Sending and receiving of message using internet:

i) Browsing ii) E-mail service

iii) Websites iv) Downloading

b) A Software for creating presentation :

i) Adobe Photoshop ii) MS-Power Point

iii) 3D Studio Max iv) MS-Word

c) Excel columns are labeled by using _____ :

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Vedanta LET’S LOG in Computer Science _ Book 6 ii) Numbers like 1,2,3
iv) None of the above
i) Letters like A, B, C,
iii) Both of the above

d) The key used to run power point presentation:

i) F4 ii) F5 iii) F3 iv) Enter

12) Look at the sample bill and answer the questions. [2×1=2]

a) Write the formula for finding total. [4×0.5=2]
b) Write the formula for finding Grand total.

13) Write shortcut key for the following actions:
a) Save document
b) Undo last action
c) Cut data
d) Paste data

[‘12.5 marks for Internal Assessment’]

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Model Questions IV

COMPUTER SCIENCE

Class: Six

Time: 1.5 hrs. F.M.: 50

Group ‘A’ – [25 marks]

‘READING & WRITING’

1) Answer the following questions. [6×2=12]

a) What is computer hardware? Give three examples.

b) What is an Application Software?

c) Define computer virus.

d) Mention any four Computer Ethics that we should follow while using computer.

e) What is search engine? Give any two examples.

f) Define the term "Internet."

2) Fill in the blanks. [6×0.5=3]

a) Keyboard is an example of ________ device.

b) __________ is the integration of multiple forms of media.

c) _________ tool is used to erase an area of the drawing,.

d) ICT is the combination of information and _______ technology.

e) Internet connection is provided by ___________.

f) ________ virus affect booting program.

3) Write ‘True’ or ‘False’ for the following statements. [6×0.5=3]

a) Pen drive is an input device.

b) Windows Operating Systems are developed by Microsoft Company.

c) Cyber Law encourages illegal use of internet.

d) Internet is a local area network.

e) The illegal copying of a program is called piracy.

f) Multimedia uses more than one media.

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4) Match the following.

Column A Column B
i) CD a) Take care and maintains computer
ii) Utility Software b) Storage device
iii) LAN c) Web browser
iv) Internet explorer d) Local network
e) Word-processor

5) Write the full forms of the following: [5×1=5]
e) WWW
a) CPU b) DOS c) USB d) LCD

Group ‘B’ – [12.5 marks]

‘ANALYTICAL’

6) Categorize the following programs into system software and utility software.
[5×0.5=2.5]

MS-Word, Windows 10, Window Media Player, UNIX, Mozilla Firefox

7) Write the shortcut keys for these commands. [6×0.5=3]
a. To save document
b. To open document
c. To run slideshow
d. To Refresh
e. Undo command
f. To select entire document/worksheet.

8) Choose the correct answer. [5×0.5=2.5]
iv) None of them
a) Media of the internet: iv) Right

i) Cable ii) Satellite iii) Both i. and ii.

b) Which alignment puts text to both left and right margins?

i) Left ii) Center iii) Justify

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c) First cell address of MS-Excel is:

i) XFD1048576 ii) XFD1048596 iii) XFD1048566 iv) None of them

d) The title bar displays:

i) Open or used file ii) Quick access toolbar

iii) Application name iv) All of them

e) MS-Paint is a _________ software.

i) Spreadsheet ii) Browsing iii) Drawing iv) Presentation

9) Give technical terms for the following. [4×1=4]

a) Moving Graphic Images.

b) Integration of multiple forms of media.

c) Software designed to provide services to a computer.

d) Demonstration or display of something in front of other people or group of people.

[‘12.5 marks for Internal Assessment’]

[Note for teacher’s: Internal assessment…

Teachers are requested to keep the genuine record of student’s academic achievements as
well as social behaviour in the classroom through continuous assessment system in computer
science so that their learning process is tracked. Teachers are encouraged to develop their own
rubrics to keep the record of students, however, a sample is given below:

Topic FM OM

Manages his/her books and copies properly. 1.5

His /Her presentation is the classroom in energetic/ enthusiastic. 2

He/She takes initiation in solving the problems/ helping friends in subject 2
matter. (team work)

He/She uses polite salutation during submission of work via mail. 1

He/she submits the given work in time. 2

He/She handles the computer with care in computer lab. 2

He/She is curious about subject matter and is very interactive. 2

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