10

Click here to load reader

Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

  • Upload
    doduong

  • View
    214

  • Download
    0

Embed Size (px)

Citation preview

Page 1: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

i

Computers, part of your life Grade 10

A textbook for Computer Applications Technology

Sandra Jacobs Reinet Barnard Keith Gibson Ellen Labuschagne Pam Macmillan Pam Miller Chris Noomé

Karin Stoffberg Ulza Wassermann

Page 2: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

ii

Published by Study OpportunitiesPO Box 52654, Dorandia, 0188Tel: (012) 565-6469Fax: (012) 546-5313E-mail: [email protected]

September 2011

ISBN: 978-1-919867-80-9

© Study Opportunities

Copyright strictly reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording or by any information storage or retrieval system, without permission in writing from the publisher.

DTP, layout and design by Ronelle Oosthuizen

Printed by Intrepid Printers (Pty) Ltd - 7572

Page 3: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

iii

Foreword

Dear learner

Congratulations!

You have made an incredibly wise and exciting choice in selecting Computer Applications Technology (CAT) as a subject. You are going to develop skills which you will be able to use for the rest of your life – irrespective of your career path. The subject can even open up some career paths.

We’ve been involved in writing CAT textbooks for a number of years. As teachers we have seen, first-hand, what works, and we have learned just how to adapt and customise our material to best suit our customers – you, the learner. We have left no stone unturned in smoothing the way for you, or in tapping into the fun and enjoyment of the subject.

This book will support you and your teacher every step of the way. We know that in three years’ time you will look back and say that CAT was one of the best decisions you ever made!

The authors

Page 4: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

iv

Section 1 System Technologies and Implications

Module Term

1.1 Introduction to computers...2 1

1.2 Software...17 1

1.3 Hardware...28 1

1.4 File management...43 1

1.5 ICT in perspective...57 1

1.6 Extended software concepts...65 2

1.7 Extended hardware concepts...74 2

1.8 The impact of ICT...91 4

Section 2Network and Internet Technologies

Module Term

2.1 Introducing networks...100 2

2.2 Network basics...106 3

2.3 The Internet and WWW...112 3

2.4 Electronic communication...125 3

2.5 Safe Internet use...141 3

Section 3word ProcessingModule Term

3.1 Start working with text...154 1

3.2 Formatting of pages and paragraphs...169 1

3.3 Editing...182 1

3.4 Adding graphics...195 1

3.5 Further formatting of pages and paragraphs...212 2

3.6 Tables...232 2

3.7 Columns, comments, protection and hyperlinks...254 3

Page 1

Page 99

Page 153

CoNTeNTS

Page 5: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

v

Section 4Spreadsheets

Module Term

4.1 Introduction to spreadsheets...268 2

4.2 Calculations...287 2

4.3 Analysing data...298 3

4.4 Charts...311 4

Section 5Presentations

Module Term

5.1 Creating and editing presentations...322 3

5.2 Effective presentations...337 3

Section 6Information Management

Module Term

6.1 A strategy for solving problems...344 2

6.2 Finding information...351 3

6.3 Using and processing information...358 4

6.4 Presenting solutions and information...364 4

Section 7Integrated Skills

Module Term

7.1 Working smarter...370 4

7.2 Practical problem solving...379 4

7.3 Case studies...387 4

Index

Page 267

Page 321

Page 343

Page 369

Page 393

Page 6: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

vi

Section 1System Technologies and Implications ............................... 1Module 1.1 Introduction to computers............................................ 2

Introduction .........................................................................................................................2Hardware versus software .................................................................................................2How a computer works .......................................................................................................3Introduction to Windows .....................................................................................................5What happens when we save our work ............................................................................ 11Honing your keyboard skills..............................................................................................12Test and improve your knowledge ....................................................................................14

Module 1.2 Software ................................................................. 17Introduction .......................................................................................................................17Applications versus system software................................................................................17The operating system .......................................................................................................17Application software .........................................................................................................22Test and improve your knowledge ....................................................................................24

Module 1.3 Hardware ................................................................ 28Introduction .....................................................................................................................28Output ...............................................................................................................................32Input .................................................................................................................................29Storage ............................................................................................................................35Environmental and health issues ....................................................................................37Test and improve your knowledge ....................................................................................39

Module 1.4 File management ...................................................... 43Introduction .......................................................................................................................43Windows Explorer.............................................................................................................43The need to organise........................................................................................................45Creating folders ................................................................................................................46More about files ................................................................................................................46Test and improve your knowledge ....................................................................................53

Module 1.5 ICT in perspective ................................................... 57Introduction .......................................................................................................................57Types of computers ..........................................................................................................57What is ICT? .....................................................................................................................59Ethical use of computers ..................................................................................................62Test and improve your knowledge ....................................................................................63

Module 1.6 extended software concepts..................................... 65Introduction .......................................................................................................................65Stand alone versus integrated software ...........................................................................65Licensing agreements ......................................................................................................66Free software!...................................................................................................................67System software ...............................................................................................................68Test and improve your knowledge ....................................................................................70

Table of contents

Page 7: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

vii

Module 1.7 extended hardware concepts ..................................... 74Introduction .......................................................................................................................74Input devices ....................................................................................................................74Output devices..................................................................................................................81Other devices ...................................................................................................................82Storage devices and media ............................................................................................83Processing ........................................................................................................................85Test and improve your knowledge ....................................................................................87

Module 1.8 The impact of ICT ..................................................... 91How ICTs influence our lives and lifestyles.......................................................................91Impact on home office ......................................................................................................93Impact on education .........................................................................................................94Computer criminals ..........................................................................................................95Test and improve your knowledge ....................................................................................97

Section 2 Network and Internet Technologies ................................99Module 2.1 Introducing networks ..............................................100

What is a network? .........................................................................................................100Advantages of networks ................................................................................................101Disadvantages of having a network................................................................................103Importance of networks ..................................................................................................103Test and improve your knowledge ..................................................................................104

Module 2.2 Network basics ....................................................106What is needed to connect? ...........................................................................................106Types of small networks .................................................................................................108Test and improve your knowledge .................................................................................. 110

Module 2.3 The Internet and www ...........................................112What is the Internet? ..................................................................................................... 112What is needed to connect to the Internet? .................................................................... 113The World Wide Web (WWW) ........................................................................................ 114Test and improve your knowledge ..................................................................................122

Module 2.4 electronic communication ........................................ 125Applications to facilitate e-communication ......................................................................125Practical use of e-mail ...................................................................................................131Netiquette .......................................................................................................................135Test and improve your knowledge ..................................................................................138

Module 2.5 Safe Internet use ...................................................141Introduction .....................................................................................................................141Viruses ............................................................................................................................141Computer worms ............................................................................................................143Trojans ............................................................................................................................144Spam ..............................................................................................................................144Hoaxes and scams .........................................................................................................144Phishing ..........................................................................................................................145Pharming ........................................................................................................................146E-mail spoofing ...............................................................................................................146General guidelines..........................................................................................................147Test and improve your knowledge ..................................................................................149

Page 8: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

viii

Section 3word Processing ........................................................153Module 3.1 Start working with text ........................................... 154

What is a word processor used for? ...............................................................................154Meet the working environment .......................................................................................155How to work with files ....................................................................................................156Creating a document .....................................................................................................159Character formatting .......................................................................................................162Test and improve your knowledge and skills ..................................................................165

Module 3.2 Formatting of pages and paragraphs ......................... 169Basic page layout ...........................................................................................................169Paragraph formatting ......................................................................................................171Formatting with styles .....................................................................................................176Test and improve your knowledge and skills ..................................................................179

Module 3.3 editing ................................................................. 182Copying, moving and deleting text .................................................................................182Find and replace ...........................................................................................................184Checking of spelling ......................................................................................................186Automatic editing options ...............................................................................................188Rounding off spacing and punctuation marks ................................................................190Test and improve your knowledge and skills ..................................................................192

Module 3.4 Adding graphics ..................................................... 195Inserting pictures ...........................................................................................................196Inserting and formatting of drawing objects ....................................................................198Drop Caps ......................................................................................................................203Page layout and background ..........................................................................................204The use of SmartArt .......................................................................................................206Test and improve your knowledge and skills ..................................................................208

Module 3.5 Further formatting of pages and paragraphs ..............212Bullets and numbered lists .............................................................................................212Tab stops ........................................................................................................................215Indenting of paragraphs .................................................................................................221Page header and page footer ........................................................................................224Use of the soft Enter ......................................................................................................226Test and improve your knowledge and skills ..................................................................227

Module 3.6 Tables ................................................................. 232Creating a basic table ....................................................................................................232Inserting and removing rows and columns .....................................................................238Formatting tables ...........................................................................................................239Sorting and calculations .................................................................................................246Change tables to text and text to tables .........................................................................248Test and improve your knowledge and skills ..................................................................249

Module 3.7 Columns, comments and protection and hyperlinks ..... 254Page layout with columns ..............................................................................................254Hyphenation ..................................................................................................................258Using comments ............................................................................................................259Protecting a document ...................................................................................................260Hyperlinks ......................................................................................................................261Test and improve your knowledge and skills ..................................................................262

Page 9: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

ix

Section 4 Spreadsheets ...........................................................267Module 4.1 Introduction to spreadsheets .................................. 268

What is a spreadsheet? .................................................................................................268Basic functions ...............................................................................................................271Inputting data ..................................................................................................................273Use of formatting ...........................................................................................................274More about types of data formats ................................................................................277Effective input using Auto Fill ..........................................................................................282Test and improve your knowledge and skills ..................................................................283

Module 4.2 Calculations ......................................................... 287Introduction .....................................................................................................................287Formulas .........................................................................................................................287Using cell references ......................................................................................................290Making a printout ............................................................................................................291Error messages in Excel.................................................................................................292Test and improve your knowledge and skills .................................................................295

Modle 4.3 Analysing data ....................................................... 298Functions that can count ................................................................................................298Other useful functions.....................................................................................................302Sorting ............................................................................................................................303Worksheets .....................................................................................................................304Introduction to charts ......................................................................................................307Test and improve your knowledge and skills ..................................................................308

Module 4.4 Charts ..................................................................311Types of charts ............................................................................................................... 311Creating charts ...............................................................................................................312Printing and copying of charts ........................................................................................317Test and improve your knowledge and skills ..................................................................318

Section 5 Presentations ............................................................321Module 5.1 Creating and editing presentations .......................... 322

Introduction ....................................................................................................................322First acquaintance with a PowerPoint presentation........................................................322How to create and edit a presentation ............................................................................324Printing a presentation ...................................................................................................327Navigation during a slide show .......................................................................................329Test and improve your knowledge and skills ..................................................................333

Module 5.2 effective presentations ........................................ 337Introduction ....................................................................................................................337Factors to consider ........................................................................................................337Test and improve your knowledge ..................................................................................342

Page 10: Computers, part of your life Grade 10 - Study · PDF fileComputers, part of your life Grade 10 A textbook for ... Module 1.8 The impact of ICT ..... 91 How ICTs influence our lives

x

Section 6Information Management ............................................343Module 6.1 A strategy for solving problems .............................. 344

Introduction .....................................................................................................................344General problem solving.................................................................................................345The role of questions ......................................................................................................346Where does one find information?..................................................................................346Test and improve your knowledge ..................................................................................349

Module 6.2 Finding information ................................................ 374How to find information ..................................................................................................352Determine what information you need ............................................................................352Determine which sources you are going to use..............................................................355Save data, facts and information that you find ...............................................................355Test and improve your knowledge ..................................................................................356

Module 6.3 Using and processing information ............................ 358Introduction .....................................................................................................................358Step 1: Sift the data and information .............................................................................359Step 2: Process the data and information .....................................................................360Test and improve your knowledge ..................................................................................362

Module 6.4 Presenting solutions and information ....................... 363Introduction .....................................................................................................................363Find your solution ..........................................................................................................364Present your solution ......................................................................................................365Test and improve your knowledge ..................................................................................367

Section 7Integrated Skills .......................................................369Module 7.1 working smarter ....................................................370

Integrating applications ..................................................................................................370Templates .......................................................................................................................373Test and improve your knowledge .................................................................................377

Module 7.2 Practical problem solving ........................................ 379Problem solving in application programs ........................................................................379Problem solving with application programs ....................................................................384

Module 7.3 Case studies ........................................................ 387Introduction ....................................................................................................................387Case study: Micro-farming ............................................................................................389Case study: The Wannalearns ......................................................................................390Case study: Wannalearns and networks .......................................................................391

Index .......................................................................393