Notes/ solved Exercises: OXFORD KEYBOARD COMPUTER SCIENCE WITH APPLICATION SOFTWARE FOR CLASS / BOOK 4 Third EDITION

Notes/ solved Exercises: OXFORD KEYBOARD COMUTER SCIENCE WITH APPLICATION SOFTWARE FOR CLASS / BOOK 4 Third EDITION

Contents

1. USES OF COMPUTERS  1

Computers in Different Areas

2. INPUT AND OUTPUT DEVICES  9

Input Devices

 Output Devices

3. MORE ABOUT WINDOWS 7 17

Desktop

Wallpaper and Screen Saver

Windows Explorer

Copying and Moving a File or Folder

Deleting a File or Folder

Gadgets

Worksheet 32

4. MORE ABOUT TUX PAINT 34

Stamp Tool

Create a Storyboard

Storyboard as a Slide Show

Quit Tool

Print Tool

5. MORE KTURTLE COMMANDS 46

Basic KTurtle Commands

Message and Ask

More Commands

Containers

Penup and Pendown

Repeat

Drawing Polygons and Circle

6. FORMATTING IN WORD 2013 58

Page, Column, and Paragraph

Formatting

Printing a Document

Worksheet- 2    7 4

7. FEATURES OF WORD 2013 75

Spelling & Grammar

Thesaurus

Change Case

Find and Replace

Bullets and Numbering

Symbols

8. CREATING TABLES IN WORD 2013 90

Creating a Table

Modifying a Table

Formatting a Table

9. INTRODUCTION TO POWERPOINT 2013 107

Starting PowerPoint 2013

Parts of the PowerPoint2013 Window

Creating a New Presentation

Slide Show

10. TEXT IN POWERPOINT 2013 124

Inserting a Text Box

Formatting Text

Changing Case

Changing Alignment

Checking Spellings

Creating Bulleted and Numbered

CHAPTER# 1 Uses of Computers P: 1-8

OBJECTIVE TYPE QUESTIONS

1. a. T b. F c. F d. T e. T

2. a. iv. all of these b. iii. both (i) and (ii) c. iv. all of these d. i. architect e. i. preparing projects

DESCRIPTIVE TYPE QUESTIONS (P:7)

QUESTION: a. How are computers useful in a school library?
ANSWER: a. In schools, computers are used: i. by teachers to prepare lessons. ii. by students to learn different subjects.
QUESTION: b. What is the use of an ATM?
ANSWER: b. An ATM is used for withdrawing money at any time.
QUESTION: c. Are there any skills that you are not using anymore because of computers?
ANSWER: c. I feel that I am not using certain skills like writing letters, as text messages and emails have replaced the need to do so. I am not using my dictionary-using skills because it is much easier to use online dictionaries.
QUESTION: d. Before computers, all official records, such as school report cards, were either hand-written or typed using typewriters? How has the use of computers in schools changed this? ls it beneficial for you or for the school? Give reasons for your answers.
ANSWER: d. The use of computers in schools has benefitted schools because they can now generate school report cards efficiently. The teachers can save a lot of time for other activities as they do not have to calculate students’ marks manually.
QUESTION: e. Do you think that computers have made places like shopping malls, airports, and hotels more secure in today’s society? Justify your response with good examples.
ANSWER: e. Computers have made places like shopping malls, airports, and hotels more secure in today’s society with the use of CCTV cameras and surveillance systems. Surveillance cameras in public places help ensure public safety because they are being monitored for any suspicious activity. By using these recordings of a crime scene the police can gather evidence against the responsible persons.

CHAPTER#2 Input and Output Devices P: 9-16

OBJECTIVE TYPE QUESTIONS

1. a. i. Printer b. ii. Digital camera c. iii. Scanner d. i. Mouse e. i. Soft copy

DESCRIPTIVE TYPE QUESTIONS (P:15)

QUESTION: a. Differentiate between hard copy and soft copy.
ANSWER: a. Hard copy is the output produced on paper by printer. Soft copy is the output on a monitor.
QUESTION: b. What is an output device? Name any two output devices.
ANSWER: b. The devices through which we see the output from a computer are called output devices. Monitor and printer are two output devices.
QUESTION: c. List four different pieces of computer hardware found in your school’s computer lab. Are they all essential components? Justify your answer.
ANSWER: c. The list of four different pieces of computer hardware in our school lab is given below: i. a keyboard ii. a mouse iii. a monitor and iv. a cabinet housing the CPU All these different computer hardware components are essential for the running of the computer. The Central Processing Unit processes the data that is fed into the computer with the help of the mouse or keyboard and the processed data is displayed on the monitor. Hence, all the components work together for effective functioning of the computer.
QUESTION: d. An architect is designing the floor plan of a house. Which do you think is the best input device to use for this task? Will he need more than one type of input device?
ANSWER: d. The best input device for an architect to use whilst designing the floor plan of a house is a light pen. It enables the architect to draw directly on the screen. Drawing smooth straight lines with precision is easier to do with a light pen than a mouse.
QUESTION: e. Cameras are often an integral part of a computer, especially a laptop or hand held device. What are the advantages and disadvantages of having a camera within a computer? Give examples to illustrate your response.
ANSWER: e. Some examples to illustrate the uses of cameras are: • Cameras built into the computer facilitate immediate communication with people who are not physically around. It is better than a traditional telephone conversation because you can see the other person as you speak. • It makes distance learning easier because the instructor can explain concepts visually using sketches and diagrams and conduct online training sessions or group study. • Inbuilt cameras support video surveillance in security systems for public safety.

CHAPTER#3 More about Windows 7 P: 17-31

OBJECTIVE TYPE QUESTIONS

1. a. T b. F c. F d . F e. T

2. a. iv. all of these b. iii. both (i) and (ii) c. ii. recycle Bin d. ii. address bar e. iv. all of these

DESCRIPTIVE TYPE QUESTIONS (P:30)

QUESTION: a. What are the three ways of copying or moving a file or a folder?
ANSWER: 1. a. The three ways of copying or moving a file or a folder are using the: Organize menu, context menu, and drag-and-drop method.
QUESTION: b. How will you create a new folder in Windows Explorer?
ANSWER: b. i. In the left pane of the Windows Explorer screen, click the drive or the folder in which a new folder is to be created. ii. Click New folder. Or In the right pane of the Windows Explorer screen, right-click the folder in which a new folder is to be created. Bring the pointer to the New option. Click the Folder option. iii. A ‘New folder’ will appear in the right pane of the screen. To rename the folder: • select it. • Click Organize Rename.
QUESTION: c. How will you delete the contents of the Recycle Bin?
ANSWER: c. To delete the contents of the recycle bin, click the Empty the Recycle Bin button.
QUESTION: d. You have been really busy working on your computer and have created a number of different  projects. How can you organise them on your computer so you can easily locate them again Give reasons for your choice of organisation.
ANSWER: d. The different projects are all saved under different folders. Each document relating to a certain project can be saved as a separate file and will be named according to its content matter. The files should be sorted into folders. Labelling them by name and by the year they were created can help organise them.
QUESTION: e. You decide to set an image of a beautiful scene from nature as the wallpaper for your desktop. Outline the steps you will take. Do you think it is important to personalise your desktop? Why or why not?
ANSWER: e. Students may provide the following steps to set an image of their choice as a wallpaper. • I click the Start button and click on the Control Panel option. • I then click the Personalization option in the Control Panel window. • I right-click the desktop to open the context menu. • I click on Personalize. • I choose a wallpaper I like from the Personalization gallery. • I click Desktop Background and select the picture I want. • I click Save Changes and return to the Personalization gallery. • When I close the Personalization gallery, my desktop displays the picture I have saved as its background.

CHAPTER#4 More about Tux Paint P: 34-45

OBJECTIVE TYPE QUESTIONS

1. a. slide show b. ESC c. storyboard d. outline e. Selector

2. a. F b. F c. T d. T e. T

3. a. ii. Slides b. ii. Alt + S c. i. Play d. ii. Lower-left e. iv. Close

DESCRIPTIVE TYPE QUESTIONS (P:43)

QUESTION: a. Name any five categories of stamps in Tux Paint.
ANSWER: a. Five categories of stamps in Tux Paint are animals, plants, outer space, vehicles, and people.
QUESTION: b. How will you open an already existing picture?
ANSWER: b. To open an already existing picture: i. Click the Open tool in the Tux Paint window. A list of all the previously saved images will be displayed. ii. Select the picture that you want to open. iii. Click the Open button present at the bottom-left corner.
QUESTION: c. How will you print a picture using a printer?
ANSWER: c. To print a picture: i. Click the Print tool. The Print dialog box appears on the screen. ii. Click Yes, print it!. A dialog box appears. iii. Select the Printer, the Number of copies, and click print.
QUESTION: d. The Stamp tool in Tux looks really good fun. How could you use it effectively to create a little booklet about different sized creatures?
ANSWER: d. The stamp tool is like a rubber stamp. It enables the user to paste pictures of different-sized creatures on the drawing canvas. The control tools at the bottom of the screen allows the user to change the size of the stamp, flip it, or show its mirror image. The user can create a booklet using stamps of different sized creatures on each page.
QUESTION: e. What other Tux tools would you need to use to help you create your creature booklet? What are the advantages and disadvantages of using a program such as Tux?
ANSWER: e. Another Tux tool the user can use is the text tool to add text to describe the creatures. The shapes tool can be used to create shape borders around the creatures. The magic tools can be used to add a brick wall and place the bird on the brick wall. There are many different tools for the user to utilise in a variety of ways to make the booklet attractive. The advantage of Tux Paint is that it is an easy and simple program for young children to use. However, it would have been better had the program had some advanced features.
QUESTION: f. In your next Tux project, you need to include ten cars which are all of different sizes, how will you make sure they all fit on the drawing canvas? Why is it important to check these details as you go along?
ANSWER: f. In the next Tux project, the size tool will be used to create buses of different sizes so that ten buses will easily fit on the drawing canvas. If a bus is too large, the eraser tool can be used to erase it and then sizes can be adjusted accordingly.

CHAPTER#5  More KTurtle Commands P: 46-57

OBJECTIVE TYPE QUESTIONS

1. a. iii. 180 b. ii. pendown c. iii. ask d. i. repeat 72 { fw 5 tr 5 } e. ii. pendown

DESCRIPTIVE TYPE QUESTIONS (P:55)

QUESTION: a. Which command should be executed before so that even after giving the command fw 100, it will not draw a line of 100 steps?
ANSWER: a. penup
QUESTION: b. Which three commands can you use to draw a circle?
ANSWER: b. repeat 360 { fw 1 tr 1 }, repeat 36 { fw 5 tr 10 }, repeat 36 { fw 5 tr 10 wait 0.5 }
QUESTION: c. KTurtle loves commands and creates some wonderful things for you from them; a bit like following a recipe to make a delicious cake! Are there commands that KTurtle cannot follow? Why do you think that? A lot of commands are extremely simple; why is this the case?
ANSWER: c. KTurtle acts upon the commands the user gives. However, there may be certain illogical commands that it will not respond to because it does not function that way. For example, MS Paint cannot act upon the commands picked up from MS Word.
QUESTION: d. Do you think learning to programme a computer is a skill worth having? Justify your response.
ANSWER: d. Learning to program is an exciting skill to acquire because programming is challenging. One may want to build a career creating websites, mobile apps, or desktop programs. Learning to program can also make the user more productive, efficient, and effective. It is very beneficial in teaching problem solving.
QUESTION: e. If you were to draw a circle and then realise it was just too big, how would you change the 2 commands in KTurtle? Would this be a relatively easy task? Justify your response.
ANSWER: e. In KTurtle, a full circle is drawn with 360 degrees. A circle can be drawn using the repeat command, i.e. repeat 360 times. For example, repeat 360 (fw 1 tr 1) It is relatively simple to reduce the size of this circle; we will increase the number of steps in the fw command and the number of degrees in the tr command. This will reduce the number of repetitions and therefore, reduce the size of the circle.

CHAPTER#6 Formatting in Word 2013  P: 58-73

OBJECTIVE TYPE QUESTIONS

1. a. T b. T c. T d. F e. F

2. a. ii. FILE b. i. VIEW c. ii. Horizontal d. ii. 1 inch e. iii. Orientation

DESCRIPTIVE TYPE QUESTIONS (P:71)

QUESTION: a. Write the keyboard shortcuts to change the line spacing to: i. Single ii. Double
ANSWER: a. (i) CTRL + 1 (ii) CTRL + 2
QUESTION: b. What do you mean by default settings?
ANSWER: b. Settings that are standard or pre-defined in a software are called default settings.
QUESTION: c. How can you insert a page break in a document?
ANSWER: c. To insert a page break, click the position where you want to insert a page break and then click the INSERT tab. In the Pages group, click Page Break.
QUESTION: d. Differentiate between horizontal alignment and vertical alignment of text.
ANSWER: d. Horizontal alignment is the position of text in relation to the left and right page margins. Vertical alignment is the position of text in relation to the top and bottom page margins.
QUESTION: e. ln Word 2013 look at the ‘paper’ tab. Explore the different paper sizes and in particular, note the dimensions (width and height) of A4 sized paper. Why do you think A4 paper is the most widely used size of paper? Why not a smaller size or a bigger size?
ANSWER: e. A4 paper is the most widely used size of paper because it is a convenient size that has become the standard size in most countries.
QUESTION: f. Explain how you will format your school magazine in five columns. Do you think it will look good with 5 columns? Would an even number of columns give it a better look? Why do you think this?
ANSWER: f. The school magazine could be formatted to have five columns. To do this, first select the text. Click the Page Layout tab. In the Page Setup group, click Columns and specify the number of columns by clicking five in the Columns dropdown menu. The designer could choose any number of columns; however, care must be taken to ensure that the column width is the same for it to look presentable. An even number of columns may look better visually.

CHAPTER#7 Features of Word 2013 P: 75-89

OBJECTIVE TYPE QUESTIONS

1. a. iv. Convert to symbol b. iv. all of these c. ii. Change All d. i. Thesaurus e. ii. REVIEW

DESCRIPTIVE TYPE QUESTIONS(P:88)

QUESTION: a. What does a blue, wavy line indicate in a Word 2013 document?
ANSWER: a. A blue wavy line indicates a grammatical mistake in a document.
QUESTION: b. Which type of list (bulleted or numbered) will you create if the order of items is not important?
ANSWER: b. Bulleted
QUESTION: c. Which tab has the option to insert symbols in a document?
ANSWER: c. INSERT tab
QUESTION: d. List the steps you will take to correct a misspelled word ’freind’ which recurs throughout a passage written in MS Word. Do you think it is right to use spell checkers all the time? Have spell checkers made us a bit lazy?
ANSWER: d. To correct a misspelled word ‘freind’ which recurs throughout a passage written in MS Word, the Spelling & Grammar tool is used. It allows the spellings of words to be checked either as an entire document or as a part of the document. The steps are as follows: • Select the word ‘freind’. • Click the Review tab. • Click the Spelling & Grammar button In the Proofing group. • The Spelling task pane appears on the right side of the document window with the correct spelling suggestion. • Click on the option Change All. It is not always correct to use spell checkers. For example, both ‘stationery’ and ‘stationary’ are different words with different meanings. The spell checker will not know which spelling should be used in the context of that sentence. In this case, the spell checker may not pick the correct spelling.
QUESTION: e. Is there an advantage in using a numbered list rather than a bulleted list? Give reasons for your response.
ANSWER: e. There is an advantage to use a numbered list when the order of items is important, for example, a sequence of events or steps. A bullet list is used when the order of items is not of any significance. For example, when writing out a recipe there is a distinct advantage for having a numbered list so the method is in proper order.

CHAPTER#8 Creating Tables in Word 2013   P: 90-106

OBJECTIVE TYPE QUESTIONS

1. a. DESIGN b. row c. cell d. LAYOUT e. Tab

2. a. iv. all of these b. iii. LAYOUT c. ii. Table Styles d. iii. TAB e. iii. both (i) and (ii)

DESCRIPTIVE TYPE QUESTIONS (P:122)

QUESTION: a. How can you select a column in a table?
ANSWER: a. To select a column in a table: • Move the mouse pointer to the area at the top of a column (column selection bar). • The mouse pointer changes to an arrow pointing downwards. • Click to select the column.
QUESTION: b. How can you select adjacent cells using the mouse?
ANSWER: b. Yes. To select adjacent cells using the mouse, click, and drag through the cells.
QUESTION: c. Write the steps to merge the cells of a column.
ANSWER: c. To merge the cells of a column: • Select the cells to be merged. • Click the LAYOUT tab. • In the Merge group, click the Merge Cells option.
QUESTION: d. How will your teacher transfer your exam marks into a Word 2013 table? What are the benefits of doing this?
ANSWER: d. To convert the exam marks into a table, the following steps should be taken: • Select the text. • Click the Insert tab. • Click the Table option. • In the drop-down menu that appears, select Convert Text to Table. • Close the ‘Convert Text to Table’ dialog box. • The selected text will appear in table form. The benefits of converting text into tables is that the data is then presented in a more systematic way. The table organises the information which in turn helps reveal patterns and relationships. It is easier to compare information, calculate averages and analyse the exam results.
QUESTION: e. A shopkeeper created a table with two columns to show the number of different kinds of vegetables he sold in a single month. However, he forgot to mention cabbage and carrots in this table. How will he modify the table to include the names and quantities of cabbage and carrots? What are the advantages and disadvantages of this sort of administration for a shop keeper?
ANSWER: e. The steps to modify the table are given below: • The shopkeeper can add two more columns to include cabbage and carrots in the table. To modify the table, he will have to take the following steps: • Click the column where he wants to insert a new blank row. • Right-click, select Insert in the context menu, and then select the appropriate option. • Click the Layout tab. • In the Rows & Columns group, select Insert Right. • A new column appears on the right. • Repeat the process to add another column.
QUESTION: f. Are there any benefits from using Quick Tables in MS Word 2013? Give examples to illustrate your answer.
ANSWER: f. There are benefits from using Quick Tables as it provides various template options and designs for creating a table. Once the layout has been selected, data can be added. The calendar can be used to insert a prepared table of a month which may be needed in a report. Tabular data can also be inserted and the table can be edited as often as required.

CHAPTER#9 Introduction to PowerPoint 2013  P: 107-123

OBJECTIVE TYPE QUESTIONS

1. a. F b. T c. T d. F e. T

2. a. iii. Ribbon b. ii. Layout c. ii. Top-half  d. iii. DESIGN e. ii. Images

DESCRIPTIVE TYPE QUESTIONS (P:130)

QUESTION: a. How will you start PowerPoint 2013?
ANSWER: a. To start PowerPoint 2013: • Click Start All Programs Microsoft Office 2013 PowerPoint 2013. • The Start screen will appear. From here, you can create a new presentation, choose a template, or access your recently edited presentation. • Click Blank Presentation. A new presentation will appear.
QUESTION: b. How will you add text to a placeholder?
ANSWER: b. To add text to a placeholder, click inside it and start typing.
QUESTION: c. What are the different ways of starting a slide show?
ANSWER: c. A slide show can be started in one of the following ways: • Click the Start From Beginning button on the Quick Access Toolbar. • Press F5. • Click the Slide Show button at the bottom of the PowerPoint window to begin a presentation from the current slide. • Click the SLIDE SHOW tab. Click the From Beginning button in the Start Slide Show group.
QUESTION: d. When you have to give a presentation to everyone in your class, you could use posters and pictures to illustrate your talk or you could use a PowerPoint presentation. Which style of presentation do you prefer? Why do you think good, clear PowerPoints can keep the interest of an audience for longer than hand held images?
ANSWER: d. The students may say that they would give their presentations in PowerPoint because it would give them the opportunity to create a systematic display of information on a particular topic in a series of slides with a combination of text, images, and sound.
QUESTION: e. What are the advantages and disadvantages of presenting your information in a slide show?
ANSWER: e. There can be certain disadvantages to presenting information in a slide show. For example, students may respond that they lack the necessary skills to create a successful presentation. With little or no computer experience, they may find it difficult to do. They would also require a computer, projector, screen, and electricity to create a slideshow but if they do not have access to all this, there would not be a presentation. Also, the success of the presentation depends entirely on the proper functioning of technology. If the file is lost or accidentally deleted, there would be no slideshow to view.

CHAPTER#10  Text in PowerPoint 2013 P: 124-132

OBJECTIVE TYPE QUESTIONS

1. a. iv. all of these b. i. HOME c. i. Paragraph d. iii. Capitalize e Each Word e. i. Dot

DESCRIPTIVE TYPE QUESTIONS

QUESTION: a. Differentiate between a numbered list and a bulleted list.
ANSWER: a A bulleted list is used when the order of items in a list does not matter. A numbered list is used when the order of items is important.
QUESTION: b. Write the steps to insert a text box in a slide.
ANSWER: b. To insert a text box in a slide: • Click the INSERT tab. • In the Text group, click the Text Box option. • The mouse pointer changes to . • Move the pointer to the place on the slide where you want to add a text box. • Click and drag the mouse on the slide to insert a text box. • Release the mouse button when the text box is of the desired size. • To reposition a text box, move the pointer over the border. When the pointer changes to , click and rag the text box to a new location. Click and then type in the text box to insert text
QUESTION: c. It is relatively easy to create basic PowerPoint slides; but why do you think it is important to go beyond the basics and learn how to use more of the options available within the PowerPoint software?
ANSWER: c. It is important to go beyond the basics so students learn how to use different options and add details so as to create an effective presentation. This chapter teaches how to present and format slides so they are visually attractive.
QUESTION: d. Changing details of the text within a PowerPoint, such as changing the case structure of words or changing alignment can seem to be very fiddly and time consuming. What impact, if any, do you think your attention to detail can have on the audience who view your finished slide show? Justify your reasoning.
ANSWER: d. The case structure may be changed for the following reasons: • To capitalize the first letter of a sentence and leave all other letters as lowercase, Sentence case is used. • To exclude capital letters from the text, lowercase is used. • To capitalize all the letters, UPPERCASE is to be used. • To capitalize the first letter of each word and leave the other letters lowercase, Capitalize Each Word is used. Each of us may have different requirements for the slide show and may use different case structure accordingly. Alignment determines the appearance and orientation of the edges of the paragraph: how the text is aligned. It is very important to format the text so that the key message to be imparted stands out in an attractive and efficient manner.
QUESTION: e. When a PowerPoint has a spelling error in its final slide show, the mistake is often glaringly obvious when shown on a big screen. Has the spelling tool replaced the need for a dictionary? ls a dictionary more than a spelling guide? What do you think?
ANSWER: e. The spelling tool is a very valuable tool but it may not be a correct indicator all the time. For example, both the words ‘sea’ and ‘see’ are correctly spelt. The spelling tool will not know which spelling should be used in the context of that sentence. Hence, along with the spelling tool, a dictionary should also be used, to check more difficult spellings in the correct context.

WORKSHEET-3 P:133-134

1. Who am I? a. Slide b. Presentation c. Placeholder d. Bullet e. Numbered list

2. Observe the following figure and answer the questions. a. Bulleted list b. Tab: HOME Group: Paragraph

3. Observe the following table and answer the questions. a. Number of rows: 3 Number of columns: 3 b. Merge c. Center d. Tab: INSERT Group: Tables

4. Write the keyboard shortcuts for the following: a. Ctrl + S b. F5 c. F7

5. Observe the figure given below and answer the questions that follow:

a. Numbered list

b. Bullet. Yes. To change the symbols in the list: • Select the list • Click the Bullet drop-down menu arrow in the Paragraph group on the HOME tab • Click at the desired symbol in the bullet list that appears

c. i. atmosphere is BOLD ii. greenhouse effect is BOLD and italicized

 CYBER OLYMPIAD QUESTIONS

1. a 2. a 3. b 4. d 5. d 6. c 7. b 8. c 9. a 10. d 11. d 12. b 13. d 14. d 15. d 16. d 17. a 18. b 19. d 20. a 21. c 22. a 23. b 24. d 25. c 26. c 27. a 28. c 29. c 30. d 31. a 32. b 33. d 34. c 35. c 36. a 37. d 38. c 39. b 40. b

REVISION QUESTIONS ANSWERS

1. Automated Teller Machine; it enables the user to withdraw money at any time.

2. Computer-controlled cameras are used to take still photographs and record video. They are also used in video conferencing and video chatting.

3. Computers can be used in banks to provide account details to customers and to print account statements. They are also used to operate ATMs enabling customers to withdraw money at any time.

4. Robots

5. Input devices enter data and instructions into the computer from outside. Keyboard and mouse. 6. Input and output devices are together called computer peripherals.

7. Input devices that are moved to point and select options on a screen are called pointing devices. Mouse and trackball.

8. Joystick

9. Wallpaper; Yes

10. A wallpaper always appears on the desktop while a screen saver appears on the desktop only when your computer is idle for a specified period of time.

11. True

12. By clicking at the options Start Control Panel Personalization.

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