Ch- 10

Ch- 10

E- Commerce

Short answer type questions: -

Q1. What is E- Commerce?

Ans1. E- Commerce refers to buying and selling products online. E-commerce is also known as Pure-click Business.

Q2. Write a note on B2C?

Ans2. Business or transactions conducted directly between a company and consumers who are the end-users of its product or services are Business-to-consumer E-commerce.

Q3. Give a list of disadvantages of E-Commerce.

Ans3. 1. Privacy and security issues.

2.       Need access to internet.

3.       No guarantee of product quality.

4.       Lack of personal interaction.

5.       Hidden costs.

Q4. Differentiate between C2C and B2B.

Ans4.

C2C	B2B
It involves transactions between consumers through third party.	It involves transactions between a manufacturer an d a wholesaler.
Eg: - online auction of products for sale.	Eg: - buying different parts of a car to be assembled at one place.

Q5. What do you know about Business to Employee E-commerce?

Ans5. These are conducted directly between a company and consumers who are the end users of its product.

Long answer type questions: -

Q1. Write any five advantages of E- commerce.

Ans1. 1. It is the cheapest means of doing business.

2. Reduction in buyers sorting out time.

3. It saves time as no order discrepancies are there.

4. Items can be tracked as they can be added to the cart.

5. It doesn’t require middle men, as there is direct contact between buyer and seller.

Q2. How does E- commerce work?

Ans2. E-commerce works as follows; -

1.       Consumers choose a product from the website.

2.       Consumers pay electronically or using third party payment.

3.       The business owner receives the order and it is fulfilled.

Q3. Explain the path of E-commerce.

Ans3. 1. The customer finds out product from online shopping.

2. Products are collected in the cart.

3. Customer enters a secure website for payment.

4. The financial information is sent to the bank for verification.

5. E-retailer confirms the order through its web server.

6. Products are packed according to the order.

7. The order is carried to the customer.

8. At last, products are delivered to the customer.

Q4. What are the payment modes in E- commerce? Explain any two modes.

Ans4. Various payment modes are:-

1.       Credit card

2.       E- money

3.       Debit card

4.       Smart card

5.       Electronic fund transfer.

6.       E- Wallet.

1.       Credit card: - it is one of the most common mode of payment. It is a small plastic card with unique number attached with an account.

2.       E-Money: - It refers to the payments done through the network without any involvement of a middle man.

Q5. Write the steps to purchase a product online.

Ans5. The steps to purchase a product online are: -

1.       Search for the product.

2.       Select the quantity.

3.       Click on add selected products to cart.

4.       Click on go to checkout.

5.       Complete the details.

6.       Click on submit.

7.       Choose the payment mode and fill payment details.

8.       Click on continue checkout and confirm the order.

ch- 4 ( Adobe Photoshop CS5)

Dass & Brown world School

Class 8

Ch – 4(Adobe Photoshop CS5)

Short answer type questions: -

Q1. What is adobe photoshop?

Ans1. Adobe Photoshop is a powerful application used for photo editing. It was created by Thomas and John Knoll in 1987.

Q2. What is the function of masks in photoshop?

Ans2. Masks can be used to block out one area of an image or protect it from manipulation.

Q3. Write a short note on rectangle shape tool.

Ans3. This tool helps to draw rectangular shapes of any size. We can draw square, rounded rectangle, ellipse etc.

Q4. Why do we use lasso tool?

Ans4. It allows us to draw a freehand selection area.

Q5. What do you mean by resizing an image? Write the steps to resize an image.

Ans5. Resizing means changing the dimensions of an image. To resize an image: -

1.       Click on the image tab.

2.       Click on image size option and make changes.

3.       Click OK.

Long answer type questions:-

Q1. Explain the screen elements of photoshop window.

Ans1. The screen elements of photoshop window are: -

1.       Menu bar: - It is the basic component and contains file, edit, image, layer, window, help etc.

2.       Option bar: - It contains work space menu where we can save and load arrangements of palettes.

3.       Palettes: - Each “panes” that carry options for working with our file in photoshop is known as palettes.

4.       Tool box: - It contains all the useful photo editing tools.

5.       Image window: - all the photo editing takes place in this area.

Q2. Explain layers in Photoshop.

Ans2. Every Photoshop image contains one or more layers. Every new file is created with background which can be connected to a layer. Layers are useful because it allows us to modify specific components of a graphic without affecting the rest of the image.

Q3. Explain the following:

1)      Marquee tool

2)      Magic wand tool

3)      Crop tool

4)      Type tool.

Ans3. 1) Marquee tool: - it allows us to select an image or part of an image in a rectangular, square or circular shape.

2) Magic wand tool: - it is used to select an adjacent area of the image having same color.

3) Crop tool: - it refers to removing unwanted portion of an image.

4) Type tool: - it is used to insert text in the image.

Q4. Explain any three file formats of adobe photoshop.

Ans4. The file formats of Photoshop are: -

1.       PSD (Photoshop Document): - It is the default file format that photoshop uses for saving data.

2.       GIF (Graphics Interchange Format): - It is commonly used extension for web graphics.

3.       PNG (Portable Network Graphics): - It creates smaller file size but without the quality loss.

microsoft excel 2010 charts

Ch-3

Microsoft Excel 2010 Charts

Class8

Short answer type questions: -

Q1. What is a chart?

Ans1. Charts a pictorial representation of large amount of data in a worksheet.

Q2. Write the advantages of a chart.

Ans2.    1) charts present data and information in an attractive manner.

            2) charts are easier to understand and compare.

Q3. What is the difference between a column chart and a bar chart?

Ans3. Column chart displays data in the form of vertical bars while bar chart displays data in the form of horizontal bars.

Q4. What is a chart title?

Ans4. It is the title given to the chart.

Q5. Name the screen elements of a chart.

Ans5. 1) chart area

2) plot area

3) data points

4) legend

5) chart and axis title

6) data label

Long answer type questions:-

Q1. Define the following chart types of Microsoft Excel 2010.

a)     Area chart

b)    Doughnut chart

c)     Stock chart

d)    Bubble chart

Ans1. 1) Area chart :- This displays quantitative data. It is used to compare two or more quantities.

2) Doughnut chart:- This compares multiple series of data.

3) Stock chart:-  This helps in tracking stock market activity.

4) Bubble chart:- This is used to show 3-D data in a flat 2-D chart.

Q2. Define the following screen elements of a chart.

a)     Chart area

b)    Plot area

c)     Data points

d)    Legend

Ans2. 1) Chart area:- this is the area surrounding the chart.

Plot area:- this is the area in which we plot our data

Data points:- it is a single value located in a worksheet cell.

Legend:- it describes colors, patterns and symbols assigned to data series.

Q3. Write the steps to create a chart in Excel.

Ans3. To create a chart: -

1)    Select the data

2)    Click on insert tab.

3)    Click on the chart type under charts group.

4)    Click the chart style we want to use.

5)    The chart will be displayed.

Q4. Write the steps to Format the chart.

Ans4. To format a chart: -

1)    Right click any area of the chart.

2)    Click on Format Chart Area.

3)    Select the desired option.

4)    Click close to see the effect.

Q5. Write the steps to print a chart.

Ans5.  To print a chart:-

1)    Select the chart to be printed

2)    Click on the file tab.

3)    Click on the print option.

4)    Give number of copies, select printer and click on print button.

connecting internet

Ch-9

Connecting Internet

Class8

Short answer type questions: -

Q1. What is internet?

Ans1. The internet is a network of the interlinked computer networking worldwide, which is available to the general public.

Q2. What is internet protocol?

Ans2. The interconnected computers work by transmitting data through a special type of packet switching which is known as IP or Internet Protocol.

Q3. Write a short note on whatsapp.

Ans3. WhatsApp messenger is very popular Instant messenger for smartphone. It was founded by Brain Acton and Jan Koum in 2009.

Q4. Write any four negative aspects of the internet.

Ans4.    1) Hackers

          2) Loss of privacy

          3) Internet Addiction

          4) spreading of rumors.

Q5.write few lines on E-greetings.

Ans5. Electronic cards is a facility of sending greetings online which is an eco-friendly way. For eg: - www.123greetings.com, archiesonline.com .

Q6. What is a web browser? Name any four popular web browsers.

Ans6. A web browser is the computer program we use to retrieve and view webpages.

Q7. Define search engine.

Ans7. A search engine is a program that searches through a database of web pages for a particular information.

Q8. Write a short note on WeChat App.

Ans8. WeChat App was designed in China for platforms like Symbian, windows phone, android and ios. It features voice messaging, broadcast messaging, photo video and location sharing.

Long answer type questions: -

Q1. Write a note on uses of internet.

Ans1. People can download songs, videos and movies over the internet and online dictionaries and translators are also available to translate different words and sentences in other languages. Internet is used in various fields :-

1)    In providing fun

2)    Networking conferences

3)    Games

4)    Entertainment

Q2. Write a note on blogging.

Ans2. A blog is a website that consists of frequently updated collection of entries. Most blogs focus on a particular topic or subject area. The entries that appear on a blog are called posts and the act of publishing a blog entry is called posting. Few of the blogging websites are :- www.blogger.com, www.typepad.com.

Q3. What do you mean by chatting on the internet?

Ans3. Chatting on internet is talking to other people who are using the internet on the same time when we are using it. Chats can be ongoing or scheduled for a particular time and duration. A chat can also be conducted using sound or video.

Q4. Write do’s and don’ts that should be followed while chatting on internet.

Ans4. Do’s

1)    Check the terms , conditions and privacy statements of the chat site.

2)    Use a chat nickname that does not give away sensitive information.

Don’ts

1)    Do not give out personal information.

2)    Do no agree to meet in person someone we have talked to.

Q5. What is video conferencing?

Ans5.video conferencing refer to a conference between two or more participants at different sites by using computer networks to transmit audio and video data. As the two participants speak to one another, their voices are carried over the network and delivered to other person. 

Animation in Flash

Dass & Brown World School

Ch-6

Animation in flash

Class 8

Short answer type questions:-

Q1. What is animation?

Ans1. Animation is the process of displaying still images in a rapid sequence to create the illusion of movement.

Q2. Explain frame by frame animation.

Ans2. In frame by frame animation, we create an image in every frame, so as to produce an animation sequence.

Q3. Write a short note on classic tween.

Ans3. Flash can move an object from one point to another without changing the shape over time using create classic tween option.

Q4. Write a short note on motion tween.

Ans4. A motion tween can be referred to an object that travels from one point to another and involves no change of shape over time.

Long answer type questions:-

Q1. Explain tweened animation along with its types.

Ans1. In the tweened animation, we create starting and ending keyframes to animate the object. There are two types of tweened animation explained as follows: -

1.      Motion tween: - An object travels from one point to another and involves no change of shape over time.

2.      Shape tween: - it takes two shapes and create animation between them.

Q2. Give a list of file types and its extensions in flash. Explain any two types.

Ans2. Flash uses the following file types and extensions: -

1.      Flash file                :-         .fla

2.      Flash video            :-          .flv

3.      Flash delivery files :-         .swf

4.      Flash template      :-          .swt

5.      Flash element       :-          .swc

1.      FLA (flash file): - this is the master document file for a flash project.

2.      FLV (flash video): - preferred format for delivering clips via flash.

Q3. Write the steps to create frame by frame animation.

Ans3. The steps to create frame by frame animation are:-

1.      Click the first frame in the layer

2.      Draw an object e.g circle.

3.      Using free transform tool, select the object and choose the desired color from fill color tool.

4.      Click the next frame in the timeline and insert a keyframe by right clicking on the frame.

5.      Make changes to the object and repeat step 4 and 5 until you have finished the animation.

6.      Click control -> test movie.

Q4. Write the steps to create shape tween in flash.

Ans4. Steps to create shape tween are:-

1.      Draw an object, eg. Square.

2.      Select any frame and insert a keyframe.

3.      Delete the square and draw any other shape.

4.      Right click the first frame and select create shape tween option.

5.      Test your movie using enter key.

QBasic

Ch-7

QBASIC

class 8

Very short answer type questions:-

Q1. What is library function?

Ans1. Library functions in QBASIC are used for scientific and mathematical calculations. These are also called built in functions.

Syntax: - Function name (argument)

There are two types of library functions: -

1.       Numeric               2. String.

Q2. What do you mean by word ‘string’?

Ans2. String is a combination of a group of characters or words which are enclosed with in double quotes.

Q3. Explain SGN () function in brief.

Ans3. This function determines the sign of the given function. Eg: - SGN(-45) will return the value -1 and SGN(52) will return the  value 1.

Q4. Differentiate between RIGHT$() and LEFT$().

Ans4.

RIGHT$()	LEFT$()
This function returns the specified number of characters from the right most side of the string.	This function returns the specified number of characters from the left most side of the string.
Syntax: - RIGHT $(string, specific number of characters)	Syntax: - LEFT $(string, specific number of characters)
Example: - Right$ (software, 5) -> ware	Example: - Right$ (software, 5) -> soft

Q5. How the SOUND command is different from the PLAY command.

Ans5.

Sound	Play
SOUND command generates a sound through computer’s speaker	PLAY command is used for playing musical notes with the help of alphabetic characters.
Example: - SOUND 1000, 5	Example: - CLS                        PLAY”CDEFGAB”                        END

 Long answer type questions: -

Q1. Define loop. If we do not use the ‘STEP’ statement, what will happen?

Ans1. Loops include certain series of instructions which are to be repeated for a particular number of times or till the conditions are satisfied. If we do not use STEP statement, the for loop will by default increment the value by 1.

Q2. Write the difference between FOR NEXT LOOP and DO LOOP.

Ans2.

FOR NEXT	DO LOOP
The FOR NEXT statement instructs the computer to repeat a set of instructions for a given number of times.	It is a block of commands, where the program does not have to do something a certain number of times like in FOR NEXT.
Example: - CLS             Input ”Enter a name” ;  A$                       For    x = 1 to 5                       PRINT A$                       NEXT X                       END	Example: - CLS                    Sum = 0  INPUT ”Enter the first number (-1 to quit);” , Number                    LOOP       PRINT ”The sum is; “sum                    END

computer ethics

Ch-2

Computer ethics

class 8

Short answer type questions:-

Q1. What do you mean by computer ethics?

Ans1. Computer ethics refer to the rules and standards one need to follow while using the computer and internet.

_______________________________________________________________________________________________________

Q2. What is end- user piracy?

Ans2. When someone copies software without the appropriate license for each copy, it is called end-user piracy.

_______________________________________________________________________________________________________

Q3. What is plagiarism?

Ans3. Plagiarism is an act of fraud. It involves both stealing – someone else’s work and lying out it afterwards.

_______________________________________________________________________________________________________

Q4. Write a short note on ‘copyright’

Ans4. It means all rights reserved. Copyright prohibits the user of a software program for making copies of it without the permission of the company/ person concerned.

_______________________________________________________________________________________________________

Q5. Give a list of essential components of a personal code of computer ethics.

Ans5. Seven essential components of a personal code of computer ethics are:-

1.       Honesty                                               5. responsibility

2.       Respect                                              6. communication

3.       Professionalism                                7. Obeying the law.

4.       confidentiality 

_______________________________________________________________________________________________________

Long answer type questions:-

Q1. Define hacker and cracker.

Ans1. Hacker is a person who is extremely interested in exploring the things and who uses computers to gain unauthorized access to data. Most often a hacker is the expert programmer and also called ethical hacker or white hat hacker.

Cracker is a person who breaks into a computer system just like a hacker, with the intention to steal password, files or programs to sell the information. Cracker is also called black hat hackers or cheaters or simply criminals.

Q2. What is internet piracy?

Ans2. We can download various softwares from the internet. We must make sure that the downloads available on internet are authorized by the owner or publisher for distribution. But there are many sites that offer software illegally over the internet. Unauthorized copies downloaded over the internet falls under internet piracy.

Q3. Write a note on ‘intellectual property rights’.

Ans3. Intellectual property rights mean “ownership of ideas” which is produced or created by using skills and

mental ability of the person. The software or program originally developed by the person(s), become the intellectual

property of the developers.

Q4. What do you mean by privacy?

Ans4. Software privacy is a concept which is applied to an individual. It is absolute right of an individual to decide  information/software/program  he/she wishes to share with others or is willing to accept from others.

Q5. What is counterfeiting?

Ans5. This is the process of making and distributing illegal copies of software packages that reproduce the

developer’s packages. People make duplicate CD’s of original software and sell them at low price.

Q6. Write down any five basic Netiquette of using internet.

 Ans6.  The Netiquette of using internet are:-

1.       Do not share your personal information on internet.

2.       Do not respond to any message that makes you uncomfortable.

3.       Try to be brief while writing message and always read it before sending.

4.       Don’t send abusive mails to anyone through net.

5.       Be courteous and respectful to others while sending an email.

Q7. Write down any five commandments for computer ethics.

Ans7. The commandments are given below:

1.       We shall not use computer to harm other people.

2.       We shall not interfere with other people’s computer work.

3.       We shall not snoop around in other people’s files.

4.       We shall not use a computer to steal.

5.       We shall not use a computer to bear false witness.