I : Introduction to Word Processor
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GOVERNMENT OF TAMILNADU HIGHER SECONDARY FIRST YEAR www.Padasalai.NetCOMPUTER APPLICATIONS VOLUME-I Untouchability is Inhuman and a Crime A publication under Free Textbook Programme of Government of Tamil Nadu Department of School Education I Index.indd 1 09-04-2018 13:56:45 Government of Tamil Nadu First Edition - 2018 NOT FOR SALE www.Padasalai.Net Content Creation The wise possess all State Council of Educational Research and Training © SCERT 2018 Printing & Publishing Tamil NaduTextbook and Educational Services Corporation www.textbooksonline.tn.nic.in II Index.indd 2 09-04-2018 13:56:45 Human civilization achieved the highest peak with the development of computer known as “Computer era”. Literate are those who have the knowledge in using the computer PREFACE whereas others are considered illiterate inspite of the other degrees obtained. The growth of the nation at present lies in the hands of the youth, hence the content of this book is prepared in such a way so as to attain utmost knowledge considering the future needs of the youth. This book does not require prior knowledge in computer HOW Technology TO USE Each unit comprises of simple THE BOOK activities and demonstrations which can be done by the teacher www.Padasalai.Netand also students. Technical terminologies are listed in glossary for easy understanding The “ Do you know?” boxes enrich the knowledge of reader with additional information Workshops are introduced to solve the exercises using software applications QR codes are used to link supporting additional materials in digital form How to get connected to QR Code? o Download the QR code scanner from the google play store/ apple app store into your smartphone o Open the QR code scanner application o Once the scanner button in the application is clicked, camera opens and then bring it closer to the QR code in the textbook. o Once the camera detects the QR code, a URL appears in the screen. Click the URL and go to the content page. III Index.indd 3 09-04-2018 13:56:45 CAREER GUIDANCE AFTER 12TH COLLEGES/ COURSES PROFESSION UNIVERSITIES Software Engineer, Hardware All University and their affiliated Engineer, Software B.E / B.Tech Colleges and Self financing Colleges in Development, Healthcare India and Abroad. Section, IT & ITEs Science and Humanities B.Sc (Computer Science) BCA B.Sc ( Maths, Physics, Chemistry, All University and their affiliated Government Job and Private Bio-Chemistry, Geography, Colleges and Self financing Colleges in Company BPO, Geologist, journalism, Library Sciences, India and Abroad. Journalist Political Science, Travel and Tourism) LAW LLB B.A+LLB All University and their affiliated Lawyer, Legal Officer, Govt B.Com Colleges and Self financing Colleges in Job BBM+LLB India and Abroad. BBA+LLB The Institute of Chartered Accountant CA CA Private and Govt. www.Padasalai.Netof India (ICAI) Government Polytechnic and Self- Junior Engineer (Government Diploma financing colleges and Private) Commerce Courses B.com-Regular, B.com-Taxation & Tax Procedure, B.com-Travel &Tourism, B.com-Bank Management, B.com-Professional, BBA/BBM-Regular, BFM- Bachelors in Financial Private Organization , Markets, All University and their affiliated Government ,Banking sectors BMS-Bachelors in Management Colleges and Self financing Colleges in and prospects for self – Studies, India and Abroad. employment. BAF- Bachelors in Accounting & Finance, Certified Stock Broker & Investment Analysis, Certified Financial Analyst, Certified Financial Planner, Certified Investment Banker IV Index.indd 4 09-04-2018 13:56:45 COLLEGES/ COURSES PROFESSION UNIVERSITIES Management Courses Business Management Bank Management Private Organization , Event Management All University and their affiliated Government ,Banking sectors Hospital Management Colleges and Self financing Colleges in and prospects for self – Human Resource Management India and Abroad. employment. Logistics Management LAW LLB Lawyer, Legal Officer, Private B.A+LLB All University and their affiliated Organization , Government, B.Com Colleges and Self financing Colleges in Banking sectors and prospects BBM+LLB India and Abroad. for self – employment BBA+LLB CA-Chartered Accountant CA, Private Organization, CMA-Cost Management The Institute of Chartered Accountant Government ,Banking sectors Accountant. of India (ICAI) and prospects for self – CS-Company Secretary employment. (Foundation) www.Padasalai.NetScience and Humanities B.Sc.Botany B.Sc.Zoology B.Sc.Dietician & Nutritionist B.Sc.Home Science B.Sc.Food Technology All University and their affiliated Government Job and Private B.Sc.Dairy Technology Colleges and Self financing Colleges in Company BPO, Geologist, B.Sc. Hotel Management India and Abroad Journalist B.Sc. Fashion Design B.Sc. Mass Communication B.Sc. Multimedia B.Sc. -3D Animation LAW LLB B.A+LLB All University and their affiliated Lawyer, Legal Officer, Govt B.Com Colleges and Self financing Colleges in Job BBM+LLB India and Abroad. BBA+LLB The Institute of Chartered Accountant CA CA Private and Govt. of India (ICAI) Government Polytechnic and Self- Junior Engineer (Government Diploma financing colleges and Private) V Index.indd 5 09-04-2018 13:56:45 Table of Contents Chapter No. Title Page UNIT I –FUNDAMENTALS OF COMPUTER AND WORKING WITH A TYPICAL OPERATING SYSTEMS (WINDOWS & LINUX) 1 Introduction to Computers 1 2 Number Systems 18 3 Computer Organization 40 4 Operating Systems 53 5 Working with Typical Operating System (Windows & Linux) 67 UNIT II-OFFICE AUTOMATION TOOLS www.Padasalai.Net(WORD PROCESSOR, SPREADSHEET AND PRESENTATION) 6 Word Processor Basics ( OpenOffice Writer) 106 7 Spreadsheet-Basics (OpenOffice Calc) 155 8 Presentation-Basics (OpenOffice Impress) 223 E - book Assessment DIGI links VI Index.indd 6 09-04-2018 13:56:45 Unit I Fundamentals of Computers CHAPTER 1 Introduction to Computers Learning Objectives 1.1 Introduction to Computers After learning the concepts in this chapter, Computers are seen everywhere the students will be able around us, in all spheres of life, in the field of education, research, travel and • To know about Computers tourism, weather forecasting, social networking, e-commerce etc. Computers • To learn about various generations of have now become an indispensable part of computer our lives. Computers have revolutionized • To understand the basic operations of our lives with their accuracy and speed of computers performing a job, it is truly remarkable. Today, no organization can function • To know the components and their without a computer. In fact, various functions. organizations have become paperless. • To know about booting of a computer Computers have evolved over the years www.Padasalai.Netfrom a simple calculating device to high speed portable computers. The growth of computer industry started with the need for performing fast calculations. The manual method of Father of Computer computing was slow and prone to errors. Charles Babbage is considered So, attempts were made to develop fast to be the father of computer, for calculating devices, the journey started his invention and the concept of from the first known calculating device Analytical Engine in 1837. The (Abacus) which has led us today to an Analytical Engine contained an extremely high speed calculating devices. Arithmetic Logic Unit (ALU), basic flow control, and 1.2 Generations of Computers integrated memory; which led to the Growth in the computer industry development of first is determined by the development in technology. general-purpose computer concept. Based on various stages of development, computers can be categroized into different generations. 1 Chapter 1.indd 1 30-03-2018 14:53:06 Main Component SN Generation Period Merits/Demerits used • Big in size First 1942- • Consumed more power 1 Generation 1955 • Malfunction due to overheat • Machine Language was used Vacuum tubes First Generation Computers - ENIAC , EDVAC , UNIVAC 1 ENIAC weighed about 27 tons, size 8 feet × 100 feet × 3 feet and consumed around 150 watts of power • Smaller compared to First Generation • Generated Less Heat • Consumed less power compared to first generation Second 1955- • Punched cards were used 2 Generation 1964 • First operating system was developed - Batch Processing Transistors and Multiprogramming Operating System • Machine language as well as www.Padasalai.NetAssembly language was used. Second Generation Computers IBM 1401, IBM 1620, UNIVAC 1108 • Computers were smaller, faster and more reliable Third 1964 3 • Consumed less power Generation -1975 • High Level Languages were Integrated used Circuits (IC) Third Generation Computers IBM 360 series, Honeywell 6000 series • Smaller and Faster • Microcomputer series such as IBM and APPLE were Fourth 4 1975-1980 developed Generation Microprocessor • Portable Computers were Very Large Scale introduced. Integrated Circuits (VLSI) 2 Chapter 1.indd 2 30-03-2018 14:53:08 • Parallel Processing • Super conductors • Computers size was drastically reduced. • Can recognize Images and Fifth 1980 - till Graphics 5 Generation date • Introduction of Artificial Intelligence and Expert Ultra Large Systems Scale Integration • Able to solve high complex (ULSI) problems including decision making and logical reasoning • Parallel and Distributed computing • Computers have become Sixth smarter, faster and smaller 6 In future Generation • Development of robotics • Natural Language Processing • Development of Voice Recognition Software www.Padasalai.NetTable1.1 Generations of computers The first digital computer The ENIAC