EBS 107: COMPUTER LITERACY COURSE MATERIAL FEBRUARY, 2019 TUMU COLLEGE OF EDUCATION TABLE OF CONTENT Contents UNIT 1: INTRODUCTION TO TODAY’S TECHNOLOGIES: COMPUTERS, DEVICES, AND THE WEB ................................................................................................... 1 Introduction ................................................................................................................................ 1 1.1 Unit Objectives .................................................................................................................... 1 1.2 What is a Computer? ............................................................................................................ 1 1.3 Limitations of a Computer ................................................................................................... 2 1.4 Classification of Computers ................................................................................................. 3 1.4.1 Classification by Purpose .................................................................................................. 3 Special purpose computers ..................................................................................................... 3 General purpose computers .................................................................................................... 5 1.4.2 Classification by Type ...................................................................................................... 5 Analog computers .................................................................................................................. 5 Advantages of Analog Computers ......................................................................................... 6 Disadvantages of Analog Computers ..................................................................................... 6 Digital computer ..................................................................................................................... 6 Advantages of Digital Computers .......................................................................................... 7 Disadvantages of Digital Computers...................................................................................... 7 Hybrid computer .................................................................................................................... 7 1.4.3 Classification by Size/Capacity ........................................................................................ 8 Supercomputer ....................................................................................................................... 8 Mainframe computer .............................................................................................................. 8 Minicomputers ....................................................................................................................... 9 Microcomputer ..................................................................................................................... 10 Categories of PCs ................................................................................................................. 11 Desktop computers ............................................................................................................... 11 Portable Computers .............................................................................................................. 11 Handheld Computers ............................................................................................................ 12 1.5 Advantages and Disadvantages of Computers ............................................................... 13 1.6 Uses of Computers in Education ........................................................................................ 13 UNIT 2: CONNECTING AND COMMUNICATING ONLINE ........................................... 15 2.1 Unit Objectives .................................................................................................................. 15 i 2.2 The Internet ........................................................................................................................ 15 2.2.1 Uses ................................................................................................................................. 16 2.2.2 Advantages and Disadvantages of the Internet ........................................................... 16 Disadvantages of the Internet ............................................................................................... 17 2.2.3 Internet and Its Evolution ............................................................................................ 17 2.3 Connecting to the Internet .................................................................................................. 17 Internet Service Providers .................................................................................................... 18 2.3.1 Devices ............................................................................................................................ 19 2.4 World Wide Web ............................................................................................................... 19 Web Addresses ..................................................................................................................... 20 2.4.2 Browsers ...................................................................................................................... 20 Examples of Browsers .......................................................................................................... 21 Mobile Browsers .................................................................................................................. 21 2.4.3 Search Engines ............................................................................................................ 21 2.5 Types of Websites .......................................................................................................... 22 2.6 Domain Name types ....................................................................................................... 23 TLD - Top Level Domains ................................................................................................... 23 IP Addresses and Domain Names ........................................................................................ 23 2.7 Netiquette ....................................................................................................................... 24 UNIT 3: APPLICATION SOFTWARE .................................................................................. 25 3.1 Unit Objectives .................................................................................................................. 25 3.1 Application Software ......................................................................................................... 25 Role of the Operating System .................................................................................................. 25 Obtaining Software .............................................................................................................. 26 Categories of Programs and Apps ........................................................................................ 27 3.2 Productivity Software ..................................................................................................... 28 Word Processors ................................................................................................................... 28 Presentation software ........................................................................................................... 29 Spreadsheet applications ...................................................................................................... 30 Software Suite ...................................................................................................................... 30 3.3 Graphic and Media Software ............................................................................................. 31 Computer-Aided Design ...................................................................................................... 31 Desktop Publishing .............................................................................................................. 31 ii Paint/Image Editing .............................................................................................................. 32 Video and Audio Editing...................................................................................................... 32 UNIT 4: THE COMPONENTS OF THE SYSTEM UNIT ..................................................... 33 4.1 Unit Objectives .................................................................................................................. 33 4.2 System Unit ........................................................................................................................ 33 The Motherboard .................................................................................................................. 34 Processors ............................................................................................................................. 35 The Control Unit .................................................................................................................. 36 The Arithmetic Logic Unit ................................................................................................... 36 Machine