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Active TM COMPUTER A Coursebook on Computer Science Part-6 Answer Key Kinderston Publications (A Unit of Sharda Press) New Delhi Chennai Guwahati

Active - Sharda Press · 3 Active Computer-6 programs, etc. 4. Write any two characteristics of computer. Ans. Two characteristics of computer are given below: (i)Speed: Computer

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ActiveTM

ComputerA Coursebook on Computer Science

Part-6

Answer Key

Kinderston Publications(A Unit of Sharda Press)

New Delhi • Chennai • Guwahati

2Active Computer-6

1 Basics of Computer

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (c) 2. (a) 3. (a) 4. (a)

Q.B. Write ‘T’ for true and ‘F’ for false:Ans. 1. (T) 2. (T) 3. (F) 4. (T) 5. (F)

Q.C. Answer the following questions:

1. Differentiate between minicomputer and micro computer.

Ans. Mini computers are small general-purpose computers having the capability to serve a number of users simultaneously. They are generally more powerful and expansive than the micro computers.

The invension of microprocessor (single chip CPU) gave birth to the much cheaper micro computer.

2. What do you understand by the term ‘Structure of Computer System’?

Ans. By the term structure of computer system a number of electronic devices connected together. These devices are made up of both hardware and software. Hardware includes the physical parts, such as the monitor, motherboard, speakers and mouse. Software is intangible (not physical), and includes the applications and programs that make the computer run.

3. What is application software?Ans. An application software plays an important part in helping

users execute different tasks using computer. It is designed to be used by end-users. Application software includes software such as database programs, word processors and spreadsheets, e-mail applications, computer games, graphic

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programs, etc.

4. Write any two characteristics of computer.Ans. Two characteristics of computer are given below: (i) Speed: Computer can work very fast. It takes only a

few seconds for calculations. The speed of computer is calculated in MHz, that is one million instructions per second.

(ii) Accuracy: The degree of accuracy of computer is very high and every calculation is performed with the same accuracy.

Formative Assessment

Q.A. Fill in the blanks:Ans. 1. A computer system is made up of a number of electronic

devices connected together. It is made up of both hardware and software.

2. Mouse, keyboard, speakers and monitor are also often called accessories.

3. Any computer is controlled by instructions. 4. The three basic types of printers are Dot matrix, Laser

and Inkjet.

B. Discuss with your friends about the following:Ans. Do yourself.

2 The Growth of Computer and Software

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (b) 2. (a) 3. (a) 4. (c) 5. (c)

Q.B. Write ‘T’ for true and ‘F’ for false:Ans. 1. (F) 2. (F) 3. (F) 4. (T) 5. (F)

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Q.C. Match the following:Ans. 1. (b) 2. (e) 3. (d) 4. (c) 5. (a)

Q.D. Answer the following questions: 1. Do you think that software and hardware are

interdependent on each other? Explain.Ans. Hardware and software are the two basic groups that

make up a computer. Hardware includes the physical parts, such as the monitor, motherboard and mouse. Software is intangible, and includes the applications and programs that the computer runs. So, we think that software and hardware are interdependent.

2. What is a machine language?Ans. Machine language is a set of instructions executed directly

by a computer’s Central Processing Unit (CPU). Each instruction performs a very specific task, such as a load, a jump, or an ALU operation on a unit of data in a CPU register or memory.

3. What are the advantages of third generation languages over the first and second generation?

Ans. A third generation language improves over a second generation language by having the computer take care of non-essential details. 3GLs feature more abstraction that previous generations of languages, and thus can be considered higher level languages than their first and second generation computer languages.

4. Discuss the evolution of programming languages.Ans. Programming languages were used even before computers

were invented. For examples, a player piano scroll, a long roll of encoded paper tape, is considered an early form of programming. The first version of a programming language arose from work by Ada Lovelace. She is remembered in the programming language still in use on military-grade projects.

5. What is the difference between compiler and interpreter?

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Explain.Ans. Compilers and interpreters are used to convert the code of

high level language into machine language. Both compilers and interpreters perform the same task but there is a difference in their working. An interpreter is slower than a compiler.

Formative Assessment

Q.A. Fill in the blanks:Ans. 1. Java is an example of 3GL. 2. Operating system are system software. 3. Compilers translate a program written in a high-level

language to a machine language. 4. A series of instructions given to a computer to perform a

task is known as programs. 5. The only language understood by computer is machine

language.

3 Computer Safety and Security

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (c) 2. (a) 3. (d) 4. (d) 5. (b)

Q.B. Write ‘T’ for true and ‘F’ for false:Ans. 1. (F) 2. (T) 3. (T) 4. (T)

Q.C. Answer the following questions:

1. How will you keep your computer physically fit?Ans. By cleaning the computer regularly, you can help to keep

it working properly and avoid expensive repairs. You must clean the keyboard, mouse and the monitor regularly to keep your computer physically fit.

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2. What is meant by authentication? What are the types of authentication?

Ans. Authentication is the process of verifying a user’s identity before granting him or her access to a computer system.

There are three types of authentication. These are: (i) Accepting proof of identity: This type of authentication

is accepting proof of identity given by a credible person who has first hand evidence that the identity is genuine.

(ii) Comparing the attributes of the object: This type of authentication is comparing the attributes of the object itself to what is known about objects of that origin.

(iii) Relies on documentation: This type of authentication relies on documentation or other external affirmations.

3. What is malware? How does it affect your computer? Mention some types of malwares.

Ans. Malware is ‘malicious software’. It refers to software programs designed to damage or do other unwanted actions on a computer system. Viruses, worms, trojan horses and spyware are some of the types of malwares.

4. What is trojan?Ans. A trojan is a type of malware designed to provide

unauthorised, remote access to a user’s computer.

5. Differentiate between encryption and decryption.Ans. Encryption is the process of conversion of data and

information into a form, called a cilphertext, that cannot be easily understood by unauthorised people.

Decryption is the process of converting encrypted data back into its original form, so that it can be understood.

Formative Assessment

Q.A. Fill in the blanks:Ans. 1. Malicious software is known as malware.

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2. Recognition of physical behaviour is an example of biometric authentication.

3. Decryption is the process of converting encrypted data into a readable form.

4. Decryption is the opposite of encryption. 5. Zombie works in a similar way as the spyware.

4 Flowcharts

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (c) 2. (a) 3. (b) 4. (b)

Q.B. Answer the following questions:

1. What is meant by a flow chart?Ans. A flowchart is a type of diagram that represents an algorithm,

workflow or process, showing the steps as boxes of various kinds, and their order by connecting them with arrows.

2. Discuss the types of flowcharts. Give examples.

Ans. The types of flowcharts are as follows:

(i) Simple Flowcharts: It shows the tasks performed by simple electronic weighing scales.

Start

End

Accept data from sensor

Send display data to display

Transform sensor data to display data

format

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(ii) Branched Flowcharts: In this type of flowchart there are multiple paths which are based on how a particular task works out.

Is sports channel found?

Start

Stop

Watch the cricket match

Press the button on remote

Press the next button

No

Yes

(iii) Program flowchart: It shows the controls in a program within a system. Program flowcharts are used to show control flow in a computer program. It is sometimes used to show an algorithm without writing the code.

is N = 100?

Start

End

Yes

No

Sum = 0

N = 0

N = N + 1

Sum = Sum + N

Print Sum

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3. What is a branched flowchart?Ans. In a branched flowchart there are multiple paths which are

based on how a particular task works out.

Q.C. Explain the functions of the following symbols:

Ans. 1. It is the symbol of a predefined process. It is a marker for another process step or series of process flow steps that are formally defined elsewhere.

2. This symbol is used as a connector to show a jump from one point in the process flow to another. They are handy for avoiding flow lines that cross other shapes and flow lines.

3. It is the delay flowchart symbol. It depicts any waiting period that is part of a process. Delay shapes are common in process mapping.

4. It is the symbol of Data storage. It indicates a step where data gets stored.

5. It is the system of collate. It indicates a step that orders information into a standard format.

6. It is the symbol of merge. It shows the merging of multiple processes or information into one. It commonly indicates storage of raw materials.

7. It is the symbol of off-page connector. It shows continuation of a process flowchart onto another page.

8. It is the logical Or symbol. It shows when a process diverges usually for more than two branches.

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Formative Assessment

Q.A. Fill in the blanks:Ans. 1. In a flowchart flow lines are used to connect symbols

together and arrows on these lines indicate the flow of a process.

2. Program flowcharts show the sequence of arrows in a single program.

3. Only one flow line should enter a decision symbol, but two flow lines should leave the decision box.

4. A good flowchart will use consistent symbols. 5. When used as a start symbol, terminators depict a trigger

action that sets the process flow into motion.

Q.B. Match the following columns with suitable options:Ans. 1. (d) 2. (c) 3. (a) 4. (b)

5 Introduction to QBasic

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (a) 2. (a) 3. (c) 4. (d)

Q.B. Answer the following questions:

1. What is QBasic?Ans. QBasic is a restricted version of Quick Basic. It is a

programming language. It was released by Microsoft in the year 1991.

2. What are the various components of the QBasic IDE? List them.

Ans. The various components of the QBasic IDE are as follows: Title bar, Menu bar, Programming window, Immediate

window, Status bar and Cursor.

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3. Write the steps to save a program in QBasic.Ans. To save a program in QBasic do the following steps: Step 1: Click on the File menu and choose Save As option.

A Save As dialog box appear on the window. Step 2: Enter the file name and click ok. The name of the

file appears in the file name area of the program window.

Formative Assessment

Q.A. Fill in the blanks:Ans. 1. IDE stands for a Integrated Development Environment. 2. Code statement terminates a QBasic program. 3. The blinking cursor at the top left corner of the screen

indicates where you should start typing. 4. The way in which a statement in QBasic is written, is

called the END of the statement.

Q.B. Explain the following interface:Ans. 1. Menu Bar: The menu bar has various options like File,

Edit, View, Search, Run, Debug, Options and Help. 2. Programming Window: This window is used to type in

the codes required for the program. It is also known as work area.

3. Status Bar: The status bar at the bottom of the screen displays a list of shortcut keys to quickly perform QBasic functions.

4. Immediate Window: The space shows the immediate execution and the out (=) put of certain commands.

5. Cursor: The blinking cursor at the top left corner of the screen indicates where you should start typing.

Q.C. Write programs.Ans. Do yourself.

Formative Assessment-1 (Chapters 1 to 5)

Q.A. Tick (3) the correct answer.

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Ans. 1. (c) 2. (a) 3. (a) 4. (c) 5. (c) 6. (b) 7. (b)

Q.B. Write ‘T’ for true and ‘F’ for false:Ans. 1. (T) 2. (F) 3. (T) 4. (T) 5. (T)

Q.C. Answer the following questions:

1. How will you keep your computer physically fit?Ans. By cleaning the computer regularly, you can help to keep

it working properly and avoid expensive repairs. You must clean the keyboard, mouse and the monitor regularly to keep your computer physically fit.

2. What is meant by authentication? What are the types of authentication?

Ans. Authentication is the process of verifying a user’s identity before granting him or her access to a computer system.

There are three types of authentication. These are: (i) Accepting proof of identity: This type of authentication

is accepting poof of identity given by a credible person who has first hand evidence that the identity is genuine.

(ii) Comparing the attributes of the object: This type of authentication is comparing the attributes of the object itself to what is known about objects of that origin.

(iii) Relies on documentation: This type of authentication relies on documentation or other external affirmations.

3. What is malware? How does it affect your computer? Mention some types of malwares.

Ans. Malware is a ‘malicious software’. It refers to software programs designed to damage or do other unwanted actions on a computer system. Viruses, worms, trojan horses spyware are some of the types of malwares.

4. List the various components of the QBasic IDE.Ans. The various components of the QBasic IDE are as follows:

Title bar, Menu bar, Programming window, Immediate window, Status bar and Cursor.

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5. What is the difference between branched flowchart and simple flowchart?

Ans. In Branched flowchart, there are multiple paths which are based on how a particular task works out. The simple flowchart shows the tasks performed by simple electronic weighing scales.

6. What types of symbols are used in flowchart? Describe their features.

Ans. Different types of symbols are used to draw each type of flowchart. These are:

(a) Terminator (Terminal Point, Oral): Terminators show the start and stop points in a process. When used as a start symbol, terminators depict a trigger action that sets the process flow into motion. They usually contain the words ‘Start’ or ‘End’.

(b) Process: It shows a process or action step. This is the most common symbol in process flowcharts.

(c) Decision: It indicates a question or branch in the process flow. A Decision flowchart shape is used when there are two options (Yes/No, No/No-Go, etc.)

(d) Input/Output: This symbol represents material or information entering or leaving the system, i.e., input and output.

(e) Flow Line (Arrow, Connector): Flow line connectors show the direction in which the process flows.

(f ) Manual Input: Manual input symbol shows a step where a user is prompted to enter information manually.

(g) Connector (Inspection): It is used to show a jump from one point in the process flow to another. They are usually labelled with capital letters (A, B, AA) to show matching jump points.

(h) Or: The logical or symbol shows when a process diverges usually for more than two branches.

(i) Merge (Storage): It shows the merging of multiple processes or information into one. It commonly indicates storage of raw materials.

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(j) Collate: It indicates a step that orders information into a standard format.

(k) Sort: The sort symbol indicates a step that organises a list of items into a sequence or sets based on a pre-determined user criteria.

(l) Predefined Process (Subroutine): It is a marker for another process step or series of process flow steps that are formally defined elsewhere.

(m) Delay: It depicts any waiting period that is part of a process. Delay shapes are common in process mapping.

(n) Data Storage: It indicates a step where data gets stored.

Summative Assessment-1 (Chapters 1 to 5)

Q.A. Fill in the blanks:Ans. 1. Fortran is an example of machine language. 2. Operating system are system software. 3. Compilers translate a program written in a high level

language to a machine language. 4. A series of instructions given to a computer to perform a

task is known as a program. 5. The only language understood by computer is 3GL. 6. A computer system is made up of a number of electronic

devices connected together. It is made up of both software and hardware.

7. Mouse, Keyboard, Speakers and monitor are also often called accessories.

8. Any computer is controller by instructions. 9. The three basic types of printer are dot matrix, laser and

inkjet. 10. Decryption is the process of converting encrypted data

back into its original form.

Q.B. Explain the following terms:Ans. 1. Iris Biometrics: It is the coloured band of tissue that

surrounds the pupil of the eye. An iris recognition system uses a video camera to capture the sample while the

15Active Computer-6

software compares the resulting data against stored templates.

2. Firewall: A firewall is a software or hardware based network security system that controls the incoming and outgoing network traffic based on applied rule set. It acts like a gatekeeper and prevents unauthorised access to a computer network system.

3. Analog Computers: Analog computer is a computing device that works on a continuous range of values. They generally deal with physical variables such as voltage, pressure, temperature, speed, etc.

4. REM: Short for Remark, REM is a statement that can be placed in system files by placing ‘REM’ (followed by a space) in front of a line. Doing this would remark the line and prevent it from executing the next time your batch file is ran.

5. QBasic: It is a restricted version of QuickBasic. It is a programming language. It was released by Microsoft in the year 1991.

6 PowerPoint—Design and Transition Tabs

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (a) 2. (b) 3. (a) 4. (b) 5. (d)

Q.B. Match the following columns with suitable options:Ans. 1. (e) 2. (a) 3. (b) 4. (c) 5. (d)

Q.C. Answer the following questions:

1. What is a slide?Ans. A slide is a single page of a presentation created with

PowerPoint software. A presentation is composed of several slides.

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2. How will you apply Design Themes to a PowerPoint presentation?

Ans. Open an existing presentation. You can change the theme in the presentation by the given steps:

Step 1: Click on the Design tab of the ribbon. Step 2: Hover your mouse over any of the design theme

icons shown. Step 3: The design is reflected immediately on your slide,

so you can see how it will look if you apply this design theme to your presentation.

Step 4: Click the design theme icon when you find one that suits your needs. This will apply that theme to your presentation.

3. How will you insert ClipArt and pictures in your presentation.

Ans. Following are the steps to insert ClipArt and pictures in your presentation:

→On the Home tab of the ribbon either click on the New Slide button or change the current slide layout by clicking on the drop-down arrow beside Layout.

→There are a number of different content slide layouts available for you to choose from. To add a single picture or a piece of clipart, click on a simple layout such as Title and content and the layout of your current slide will change to match your choice.

4. What is transition? How will you add transition to your slides? Write the steps.

Ans. Transition determines how your presentation moves from one slide to the next. PowerPoint provides several transition methods. You can add transition by the given steps:

Step 1: Choose a slide Transition. Step 2: Click on the Transitions tab of the ribbon to access

the slide transition options. The most common slide transitions are shown as icons on the ribbon.

Step 3: Click the drop-down arrow to see the complete list

17Active Computer-6

of transitions available, or scroll through the list, one row at a time.

5. Write the steps to:Ans. (a) Insert a new slide— Click on the New slide button on

the Home tab of the ribbon to add a new slide to your presentation. Any new slides created will retain the design theme you set for your slideshow in the first slide.

(b) Delete a slide— Following are the steps to delete a slide:

Step 1: On the slides tab of the slides/outline task pane on the left of your screen, select the slide to be deleted.

Step 2: Click on the thumbnail of the slide you wish to delete.

(c) Rearrange the slides— Following are the steps to rearrange the slides:

Step 1: Click on the slide you wish to move. The slide will get selected.

Step 2: Drag the slide to the new location. Step 3: A horizontal line appears as you drag the slide.

When the horizontal line is in the correct location, release the mouse.

Step 4: The slide moves to the new location.

Formative Assessment

Q.A. Fill in the blanks:Ans. 1. A PowerPoint presentation comprises of one or more

slides. 2. PowerPoint is used to create effective presentations. 3. A slide can contain text, graphics and animation. 4. Click on the New Slide button on the Home tab of the

ribbon to add a new slide to your presentation.

Q.B. Write ‘T’ for true and ‘F’ for false:Ans. 1. (T) 2. (F) 3. (T) 4. (T)

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7 More about MS-Word Formatting

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (b) 2. (d) 3. (d)

Q.B. Answer the following questions:

1. What is formatting?Ans. Formatting refers to the layout of a paper and is an important

tool for successful academic papers.

2. Define header or footer.Ans. A header is printed in the top margin; a footer is printed in

the bottom margin.

3. What are endnotes?Ans. Endnotes are used to reference text in your document. They

are located at the end of a document. These are used to annotate text in your document and explain that text.

4. What is the importance of header or footer? How will you add or delete footer?

Ans. Headers and footers can help keep longer documents organised and make them easier to read. Text entered in the header or footer will appear on each page of the document.

Steps to insert a header or footer are as follows: Step 1: Select the Insert tab. Step 2: Click either the Header or Footer command. A

drop-down menu will appear. Step 3: From the drop-down menu, select Blank to insert a

blank header or footer, or choose one of the built-in options.

Step 4: The Design tab will appear on the Ribbon, and the header or footer will appear in the document.

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Step 5: Type the desired information into the header or footer.

Step 6: When you have finished, click close Header and Footer in the Design tab, or hit the Esc key.

Formative Assessment

Q.A. Fill in the blanks:Ans. 1. Header is placed at the top of a page. 2. A style is a set of formatting instructions. 3. The endnote is placed at the end of a document. 4. Each tab on the ribbon has different buttons and

commands that are organised into ribbon groups.

Q.B. Write ‘T’ for true and ‘F’ for false:Ans. 1. (T) 2. (T) 3. (F) 4. (T)

Q.C. Match the following commands with groups or tabs:Ans. 1. (c) 2. (e) 3. (a) 4. (b) 5. (d)

8 More on MS-Excel 2010

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (d) 2. (a) 3. (a) 4. (c) 5. (d)

Q.B. Answer the following questions:

1. How will you insert in a data worksheet?Ans. To enter data in the worksheet, do the following steps: Step 1: Click the cell where you want to enter data. Step 2: Type the data in the cell. Step 3: Press enter or tab to move to the next cell.

2. What is a row and a column?Ans. Horizontal references in a spreadsheet, identified by a

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number is known as row. Vertical references in a spreadsheet, identified by an alphabetic letter is known as column.

3. How will you change the row height and column width?Ans. Following are the steps to change the row height and

column width: Step 1: Select the column(s) or row(s) that you want to

change. Step 2: On the Home tab in the Cells group, click Format. Step 3: Under Cell size, click column width or Row Height. Step 4: A Column Width or Row Height box, type the value

that you want your column or row to be.

4. What is a spreadsheet?Ans. A spreadsheet is an interactive computer application

program for organisation, analysis and storage of data in tabular form.

5. How will you apply cell borders?Ans. Following are the steps to apply Cell borders: Step 1: On a worksheet, select the cell or range of cells that

you want to add a border to, change the border style on, or remove a border from.

Step 2: Go to the Font group in the Home tab. Step 3: Click the arrow next to Borders. Step 4: Click on the border style you would like. Step 5: The border will be applied to the cell or cell range.

Formative Assessment

Q.A. Fill in the blanks:Ans. 1. Excel allows you to create visual presentation of facts

and information. 2. MS-Excel is used to create and manage business

transactions that deal with accounting. 3. Spreadsheet is a program. 4. Certain programs, such as Adobe Acrobat Reader, may

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install additional tabs to the Ribbon. These tabs are called add-ins.

Q.B. Write ‘T’ for true and ‘F’ for false:Ans. 1. (T) 2. (F) 3. (F) 4. (T)

9 An Introduction to Flash CS6

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (a) 2. (a) 3. (a) 4. (a) 5. (a)

Q.B. Write ‘T’ for true and ‘F’ for false:Ans. 1. (T) 2. (T) 3. (T) 4. (F) 5. (F)

Q.C. Answer the following questions: 1. What is flash?Ans. Flash is a very useful application used in multimedia graphic

programs. It is used to create animations, games, cartoons, text, graphics and other special effects.

2. How will you start flash?Ans. To start Flash, do the following steps: Step 1: Click on Start button. Step 2: Choose All Programs. Step 3: Click on Adobe Flash CS6 Professional. The Flash screen appears. You can see the welcome screen

of Flash CS6.

3. What is the use of property panel?Ans. The property panel provides easy access to the most

commonly used attributes of the current selection, either on the stage or in the timeline. In the property panel, you can edit the document size or select publish settings, including the target Flash Player and Action Script versions.

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4. What are the options of the Eraser Mode?Ans. In the options listed at the bottom of the toolbox you can

specify the Eraser mode: Erase Normal—erases strokes and fills on the same layer. Erase Fills—erases only fills, strokes are not affected. Erase Selected Fills—erases only the currently selected fill

and does not affect strokes, selected or not. Erase inside—erases only the fill on which you begin the

eraser stroke. If you begin erasing from an empty point, nothing will be erased. Strokes are unaffected by the eraser in this mode.

5. How will you create custom workspace?Ans. We can create a custom workspace by moving and

manipulating panels, such as adding, removing, docking, grouping or collapsing them.

Formative Assessment

Q.A. Fill in the blanks:Ans. 1. The welcome panel includes three columns. 2. If at some point all the panels you put on the desktop did

disappear, just hit F4. 3. If you just need more space for drawing, hit F4 again to

get the full workspace back. 4. To start working with a Flash file, you may either use the

File menu or select an item within the welcome panel.

10 Networking

Summative Assessment

Q.A. Tick (3) the correct answer.Ans. 1. (a) 2. (b) 3. (a)

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Q.B. Expand the following terms: a. WAN — Wide Area Network b. E-mail — Electronic mail c. LAN — Local Area Network d. WWW — World Wide Web

Q.C. Explain the following terms:Ans. 1. http — The Hypertext Transfer Protocol is the

foundation of data communication for the world wide web.

2. WAN — Wide Area Network (WAN) connect networks in larger geographic areas, such as India or other countries.

3. LAN — Local Area Network (LAN) is a network that is confined to a relatively small area.

4. WWW — WWW stands for World Wide Web. It is a subset of the Internet.

Q.D. Answer the following questions: 1. What is meant by computer network?Ans. A computer network consists of a group of computers

that are linked either through physical wiring or a wireless system. These computers communicate with each other.

2. What is Internet?Ans. Internet is the world wide network of millions of computers.

It is the medium for communication research and exchange of information. The Internet makes it easy to distribute information in multiple locations.

3. Distinguish between Internet and World Wide Web.Ans. Internet is a massive network of networks, a networking

infrastructure. It connects millions of computers together globally. The world wide web is a way of accessing information over the medium of the Internet. It is an information sharing model that is built on top of the Internet.

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Formative Assessment

Q.A. Fill in the blanks:Ans. 1. Network is mainly used for virtual meetings. 2. WWW is a collection of number of web pages. 3. Modem is used to dial a host computer. 4. We can send text messages through e-mail.

Summative Assessment-2 (Chapters 6 to 10)

Q.A. Tick (3) the correct answer.Ans. 1. (d) 2. (a) 3. (d) 4. (a) 5. (b) 6. (b) 7. (b) 8. (c)

Q.B. Write ‘T’ for true and ‘F’ for false:Ans. 1. (T) 2. (T) 3. (T) 4. (T) 5. (T) 6. (T) 7. (T)

Q.C. Answer the following questions:

1. How will you create a PowerPoint presentation?Ans. Following are the steps to create a PowerPoint presentation: Step 1: Start the PowerPoint program. Step 2: Choose a design. Step 3: Create the title page. Step 4: Add more slides. Step 5: Add charts, pictures, graphs, etc. Step 6: Add transitions in between your slides. Step 7: Changing the order of the slides. Step 8: Play the presentation.

2. How will you edit a chart?Ans. The following are the steps to edit a chart: Step 1: In PowerPoint double-click the chart in which you

want to edit data. Step 2: Switch to the datasheet. If the datasheet is not

visible, click view Datasheet to display it.

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Step 3: Click a cell and then type the text or numbers you want.

3. What is animation?Ans. Animation uses Microsoft PowerPoint and similar programs

to create a game or movie. The artwork is generally created using PowerPoint’s AutoShape features, and then animated slide-by-slide or by using custom animation.

4. Explain the importance of review and view tabs of MS-Word.

Ans. The review tab is useful in a lot of ways. You can have the spelling and grammar feature, the research option, thesaurus and translation functionality to help you improve your documents. The view tab in MS-Word has the functionality to change your document views. The view tab has the following groups: Document views, Show/Hide, Zoom, Window and Macros.

Formative Assessment-2 (Chapters 6 to 10)

Q.A. Fill in the blanks:Ans. 1. In PowerPoint presentation we first go to the slides on

the left for opening the screen. 2. PowerPoint has a number of built-in themes. 3. The blinking cursor at the top left corner of the screen

indicates where you should start typing. 4. Animation is the process of creating a continuous motion

and shape change. 5. A PowerPoint presentation comprises of one or more

slides. 6. MS-PowerPoint is used to create effective presentation. 7. A slide can contain text, graphics and animation. 8. Click on the New Slide button on the Home tab of the

ribbon to add a new slide to your presentation. 9. Excel allows you to create visual presentation of facts

and information.

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10. MS-Excel is used to create and manage business transactions that deal with accounting.

Q.B. Match the following columns with suitable options:Ans. 1. (f ) 2. (a) 3. (b) 4. (c) 5. (i) 6. (j) 7. (h) 8. (g) 9. (e) 10. (d)