Slide 1 Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall Power Point Lectures to accompany Tomorrow’s Technology and You, 9e

Slide 2 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Printed in the United States of America. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 3 Tomorrow’s Technology and You 9/e Chapter 1 Our Digital Planet Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 4 Tomorrow’s Technology and You 9/e Chapter 1 Objectives Describe several ways digital technology plays a critical role in modern life Discuss several key trends in the evolution of computers and digital technology Describe the major types of computers and their principle uses Explain how the explosive growth and evolution of the Internet is changing the way people use information technology Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 5 Tomorrow’s Technology and You 9/e Chapter 1 Objectives (cont.) Explain how our information age differs from any time that came before Discuss the social and ethical impact of information technology on our society Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 6 Tomorrow’s Technology and You 9/e Chapter 1 Creating Communities on the Living Web MySpace creates an online community experience for young people. Tom Anderson and Chris DeWolfe are the founders Flickr creates a community for people to share their pictures. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 7 Tomorrow’s Technology and You 9/e Chapter 1 Living in a Nondigital World Computers are no longer a luxury but rather a commodity. Computers and their applications are involved in all aspects of our daily life. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 8 Tomorrow’s Technology and You 9/e Chapter 1 Computers in Perspective Every computer in use today follows the basic plan laid out by Charles Babbage and Lady Lovelace. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 9 The first real computers:  1939: Konrad Zuse completed the first programmable, general-purpose digital computer.  About the same time, the British government was assembling a top-secret team of mathematicians and engineers to crack Nazi military codes.  1943: The team led by mathematician Alan Turing and others completed Colossus, considered by many to be the first electronic digital computer. Tomorrow’s Technology and You 9/e Chapter 1 Computers in Perspective Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 10 Tomorrow’s Technology and You 9/e Chapter 1 Computers in Perspective The first real computers (cont.):  1939: Iowa State University professor John Atanasoff developed what could have been the first electronic digital computer, the Atanasoff-Berry Computer (ABC). The first real computers (cont.):  1944: Thanks to a one million dollar grant from IBM, Harvard professor Howard Aiken developed the Mark I. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 11 Tomorrow’s Technology and You 9/e Chapter 1 Computers in Perspective The first real computers (cont.):  John Mauchly and J. Presper Eckert helped the U.S. effort in World War II by constructing a machine to calculate trajectory tables for new guns. ENIAC (Electronic Numerical Integrator and Computer)  After the war, Mauchly and Eckert started a private company called Sperry and created UNIVAC I, the first general-purpose commercial computer. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 12 Tomorrow’s Technology and You 9/e Chapter 1 Computers in Perspective Vacuum tubes were used in early computers. Transistors replaced vacuum tubes starting in By the mid-1960s transistors were replaced by integrated circuits. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 13 Tomorrow’s Technology and You 9/e Chapter 1 Computers in Perspective Integrated circuits brought:  Increased reliability  Smaller size  Higher speed  Higher efficiency  Lower cost Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 14 Tomorrow’s Technology and You 9/e Chapter 1 Computers in Perspective 1971: The first microprocessor was invented by Intel engineers. The PC (personal computer) revolution began in 1970:  Apple  Commodore  Tandy Moore’s law–Gordon Moore predicted that the number of transistors that can be packed into a silicon chip of the same price would roughly double every two years. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 15 Tomorrow’s Technology and You 9/e Chapter 1 Computers Today: A Brief Taxonomy Desktop computers haven’t completely replaced big computers, which have also evolved. Embedded computers  Special-purpose computer: Dedicated computers that perform specific tasks.  Controlling the temperature and humidity  Monitoring your heart rate  Monitoring your house security system  The program is etched on silicon so it cannot be altered. This is called firmware. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 16 Tomorrow’s Technology and You 9/e Chapter 1 Computers Today: A Brief Taxonomy Personal computers and workstations  PCs serve a single user at a time  PCs are a tool for:  Enhancing productivity  Creativity  Communication  PCs can be classified as:  Desktop  Workstation  Laptop Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 17 Tomorrow’s Technology and You 9/e Chapter 1 Computers Today: A Brief Taxonomy Personal computers and workstations (cont.)  Desktop computer  A PC designed to sit on a desk or table for extended periods of time  Common components: Tower with internal key components Monitor Keyboard Mouse Speakers  Has one or more power cables connecting it to an electrical outlet Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 18 Tomorrow’s Technology and You 9/e Chapter 1 Computers Today: A Brief Taxonomy Personal computers and workstations (cont.)  Workstations  High-end desktop computers with massive computing power used for high-end interactive applications  As workstations become less expensive and desktops become more powerful, the line that separates them is becoming as much a marketing distinction as a technical one. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 19 Tomorrow’s Technology and You 9/e Chapter 1 Computers Today: A Brief Taxonomy Personal computers and workstations (cont.)  Laptop, or notebook, computers are personal computers designed with portability in mind.  Some components are left off to help keep size and weight down. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 20 Tomorrow’s Technology and You 9/e Chapter 1 Computers Today: A Brief Taxonomy Handheld devices  Handheld devices are small enough to tuck into pockets and serve the needs of users who value mobility over a full- sized keyboard and screen.  PDA (personal digital assistant) Palm Pocket PC  Smart phones iPhone Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 21 Tomorrow’s Technology and You 9/e Chapter 1 Computers Today: A Brief Taxonomy Servers  Computers designed to provide software and other resources to other computers over a network. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 22 Tomorrow’s Technology and You 9/e Chapter 1 Computers Today: A Brief Taxonomy Mainframes and supercomputers  Mainframes  Used by large organizations, such as banks and airlines, for big computing jobs  Communicate with mainframe through terminals  Multiple communications at one time through process of timesharing Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 23 Tomorrow’s Technology and You 9/e Chapter 1 Computers Today: A Brief Taxonomy Mainframes and supercomputers (cont.)  Supercomputers  For power users who need access to the fastest, most powerful computers made Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 24 Tomorrow’s Technology and You 9/e Chapter 1 Computer Connections: The Internet Revolution Networks  Connect devices together  1960s: Internet developed with backing of the U.S. government Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 25 Tomorrow’s Technology and You 9/e Chapter 1 Computer Connections: The Internet Revolution The Internet explosion–over a billion people with Internet access by the end of 2005  Electronic mail  software  World Wide Web  Led the Internet’s transformation from a text-only environment into a multimedia landscape incorporating pictures, animation, sounds, and video Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 26 Tomorrow’s Technology and You 9/e Chapter 1 Computer Connections: The Internet Revolution The Internet explosion–over a billion people with Internet access by the end of 2005 (cont.)  Web browsers  Programs that in effect, serve as navigable windows into the Web  Hypertext links  Tie together millions of Web pages created by diverse authors  Internet supports varied activities  eBay used to make international transactions  Real-time multiplayer games Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 27 Tomorrow’s Technology and You 9/e Chapter 1 Into the Information Age In the history of our society we have had:  An agricultural age  An industrial age Now we are in a new age, the information age:  More and more people earn their living working with words, numbers, and ideas. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 28 Tomorrow’s Technology and You 9/e Chapter 1 Into the Information Age Living with digital technology  Explanations: clarifying technology  Computer literacy is already improving our day-to- day lives and careers.  Applications: digital technology in action  Applications enable you to use a computer for specific purposes. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 29 Tomorrow’s Technology and You 9/e Chapter 1 Living with Digital Technology Digital technology in action  You can benefit from knowing about:  Network applications  Word processing and desktop publishing  Spreadsheets and other number-crunching applications  Databases  Computer graphics and digital image processing  Digital audio, digital video, and multimedia  Entertainment  Customized problem solving  Artificial intelligence Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 30 Tomorrow’s Technology and You 9/e Chapter 1 Living with Digital Technology Implications: social and ethical issues  The threat to personal privacy posed by large databases and computer networks  The hazards of high-tech crime and the difficulty of keeping data secure  The difficulty of defining and protecting intellectual property in an all-digital age Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 31 Tomorrow’s Technology and You 9/e Chapter 1 Living with Digital Technology Implications: social and ethical issues (cont.)  The threat of automation and the dehumanization of work  The abuse of information as a tool of political and economic power  The emergence of biodigital technology  The dangers of dependence on complex technology Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 32 Tomorrow’s Technology and You 9/e Chapter 1 Into the Information Age Working the Web  Web search strategies  Get to know your search engines  Be specific when you search  Know your plusses and minuses  Be selective  Triangulate  Beware of urban legends  Organize your favorites  Protect your privacy  Be conscious of cookies and bugs  Remember that online shopping isn’t always better  Shop with care Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 33 Tomorrow’s Technology and You 9/e Chapter 1 Into the Information Age Computer ethics  ACM (Association for Computing Machinery)  Guidelines for deciding how to “do the right thing:”  Know the rules and the law  Don’t assume that it’s OK if it’s legal  Think scenarios  When it doubt, talk it out  Make yourself proud  Remember the golden rule: Do unto others as you would have them do unto you  Take the long view  Do your part Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 34 Tomorrow’s Technology and You 9/e Chapter 1 Lesson Summary Computers have evolved at an incredible pace since Charles Babbage’s plan for an Analytical Engine. Computers today come in all shapes and sizes, with specific types being well-suited for particular jobs. Connecting to a network enhances the value and power of a computer:  Internet  WWW  Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall

Slide 35 Tomorrow’s Technology and You 9/e Chapter 1 Lesson Summary (cont.) Computers and information technology have changed the world rapidly and irreversibly. Emerging technologies, such as artificial intelligence, offer promise for future applications. Computers threaten our privacy, our security, and perhaps our way of life. Information technology is here to stay. Copyright © 2009 Pearson Education, Inc. Publishing as Prentice Hall