Discovering Computers Living in a Digital World
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1 Discovering Computers 2011 Living in a Digital World
2 Objectives Overview Mengapa "melek" computer adalah hal yang sangat vital Mendifinisikan istilah computer dan mendiskripsikan hubungan antara data dan informasi Mendeskripsikan 5 komponen komputer Manfaat dari penggunaan komputer Mendefinisikan istilah network, dan identifikasi benefit sharing network Penggunaan Internet dan World Wide Web (www) See Page 3 for Detailed Objectives 2
3 A World of Computers Computers are everywhere Pages 4-5 Figure 1-1 4
4 A World of Computers Computers are everywhere Pages 4-5 Figure 1-1 4
5 What Is a Computer? A computer is an electronic device, operating under the control of instructions stored in its own memory Collects data (input) Processing Produces information (output) Information Processing Cycle Page 6 5
6 What Is a Computer? Page 6 Figure 1-2 6
7 The Components of a Computer A computer contains many electric, electronic, and mechanical components known as hardware Input Device Allows you to enter data and instructions into a computer Output Device Hardware component that conveys information to one or more people System Unit Case that contains the electronic components of the computer that are used to process data Storage Device Communications Device Holds data,instructions, and information for future use Enables a computer to send and receive data, instructions, and information to and from one or more computers or mobile devices Pages 6-8 7
8 The Components of a Computer Page 7 Figure 1-3 8
9 Advantages and Disadvantages of Using Computers Advantages of Using Computers Speed Reliability Consistency Storage Communications Disadvantages of Using Computers Health Risks Violation of Privacy Public Safety Impact on Labor Force Impact on Environment Pages
10 Advantages and Disadvantages of Using Computers Green computing involves reducing the electricity consumed and environmental waste generated when using a computer Strategies include: Recycling Regulating manufacturing processes Extending the life of computers Immediately donating or properly disposing of replaced computers Page 10 Click to view Web Link, click, Click Web Link from left navigation, then click Green Computing below 10
11 Networks and the Internet A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media Pages Figure
12 Green Computing Example of green computing
13 Networks and the Internet The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals Page 11 Figure 1-7 Click to view Web Link, click, Click Web Link from left navigation, then click The Internet below 12
14 Networks and the Internet People use the Internet for a variety of reasons: Communicate Research and Access Information Shop Bank and Invest Online Trading Entertainment Download Videos Share Information Web Application Pages Figure
15 Networks and the Internet A social networking Web site encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users Page 14 Figure 1-9 Click to view Web Link, click, Click Web Link from left navigation, then click Facebook below 14
16 Computer Software Software Sistem Operasi Utilities : Anti virus, File Management, dll Aplikasi : Sistem Informasi Paket : Office, Star Office, Corel Draw, Photoshop, dll Pemrograman : Pascal, C, JAVA, dll
17 Computer Software Installing is the process of setting up software to work with the computer, printer, and other hardware Pages Figure
18 Computer Software A programmer develops software or writes the instructions that direct the computer to process data into information Page 18 Figure
19 Categories of Computers Personal computers Mobile computers and mobile devices Game consoles Servers Mainframes Supercomputers Embedded computers Page 19 18
20 Personal Computers A personal computer can perform all of its input, processing, output, and storage activities by itself Two popular architectures Apple Desktop computer are the PC and the Page 19 Figures
21 Mobile Computers and Mobile Devices Mobile Computer Personal computer you can carry from place to place Mobile Device Computing device small enough to hold in your hand Examples include notebook computers, laptop computers, netbooks, ultra-thins, and Tablet PCs Examples include smart phones, PDAs, handheld computers, portable media players, and digital cameras Pages
22 Mobile Computers and Mobile Devices Notebook computer Tablet PC Smart phone PDA Pages Click to view Web Link, click, Click Web Link from left navigation, then click Camera Phone below 21
23 Mobile Computers and Mobile Devices Handheld computer Portable media player Digital camera Click to view Web Link, click, Click Web Link from left navigation, then click Digital Cameras Pages 22-23below Figures
24 Mainframes A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously Page 25 Figure
25 Supercomputers A supercomputer is the fastest, most powerful computer Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second Page 25 Figure
26 Elements of an Information System Hardware Software Data People Procedures Click to view Web Link, click, Click Web Link from left navigation, then click Women in Page 27 Technology below 29
27 Examples of Computer Usage Home User Personal financial management Web access Communications Entertainment Small Office/Home Office User Look up information Send and receive messages Make telephone calls Mobile User Connect to other computers on a network or the Internet Transfer information Play video games Listen to music Watch movies Click to view Web Link, click, Click Web Link from left navigation, then click Minorities in Technology below 31
28 Examples of Computer Usage Power User Work with multimedia Use industry-specific software Enterprise User Communicate among employees Process high volumes of transactions Blog Pages Click to view Web Link, click, Click Web Link from left navigation, then click Enterprise Computing below 32
29 Computer Applications in Society Education Finance Government Health Care Pages Figures
30 Computer Applications in Society Science Publishing Travel Pages Click to view Web Link, click, Click Web Link from left navigation, then click OnStar below Manufacturing 34
31 Video: Computer History CLICK TO START 35
32 Summary Basic computer concepts Components of a computer Networks, the Internet, and computer software Many different categories of computers, computer users, and computer applications in society Page 39 36
33 Discovering Computers 2011 Living in a Digital World Complete
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