1 Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

2 Technology in Action Chapter 8 Digital Lifestyle: Managing Digital Data and Devices Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

3 Chapter Topics Changes that have brought us a digital lifestyle The impact of a digital lifestyle Cell phones and smartphones Voice over Internet Protocol Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

4 Chapter Topics Digital media versus analog media Portable media players How to create and watch digital video Ubiquitous computing Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

5 Digital Lifestyle: What Are the Advantages of a Digital Format? Sounds and images reproduce perfectly Easy distribution Small devices can hold huge collections of media Easy access to digital information Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

6 Cellular Phones and Smartphones Features include – –Auto-redial – –Voice mail – –Voice-activated dialing – –Internet access – –Text messaging – –Personal information management (PIM) The most full-featured cell phones are categorized as smartphones Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

7 How Cell/Smartphones Work Analog-to-digital converter chip converts voice sound waves into digital signals. Digital signal processor compresses the signal so it can be sent to another phone. Digital data is transmitted as radio waves. Digital signal processor decompresses incoming calls. Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

8 How Cell/Smartphones Work Base transceiver station – –Picks up the request for service Mobile switching center – –Monitors the strength of the signal – –When signal is weak, orders the next base station to take charge of your call. Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

9 Cell/Smartphone Hardware Processor (CPU) – –Coordinates sending data between components – –Runs the operating system – –Popular processors include Samsung SC Texas Instruments OMAP Marvell Xscale Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

Cell/Smartphone Operating Systems Translate the user’s commands into instructions for the processor – –Symbian – –Windows Mobile – –OS X – –OpenMoko A free open-source mobile operating system 10 Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

11 Cell/Smartphone Memory and Storage ROM stores the operating system and the basic programs. Separate internal memory chips store additional applications and data. Flash cards are used for additional storage. Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

12 Cell/Smartphone Hardware Input devices – –Microphone – –Keypad – –Graffiti pad – –Touch screen – –Digital camera Output devices – –Speaker – –LCD display Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

13 Cell/Smartphone Software Standard software – –To-do list – –Contacts manager – –Calendar Additional software – –Microsoft Word, Excel, Outlook, and PowerPoint – –Games – –Tools – –References Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

14 Cell/Smartphone File Transfer and Synchronization Cell/smartphone files can be transferred to a desktop – –Flash card readers – –Cradles Synchronizing updates files on the cell/smartphone and desktop – –Sync cables – –Windows Sync Center Wireless transfers – –IrDA – –Bluetooth Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

15 Cell/Smartphone Text Messaging Text messaging – –Short Message Service (SMS) Sends messages of up to 160 characters – –Multimedia Message Service (MMS) Sends text, sound, images, and video clips Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

16 Cell/Smartphone Internet Connectivity Wireless Internet service provider Internet connectivity plans, usually known as data plans Microbrowser software Pages are written in Wireless Markup Language (WML) Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

17 Cell/Smartphone Internet Connectivity 3G and Enhanced Data Rate for Global Evolution (EDGE) – –Allow connectivity speeds of up to 1.7 Mbps – –Conditions must be ideal to get this transfer rate – –More reliable and less susceptible to interference than WiFi 4G networks are beginning to be tested. – –Connection speeds of up to 50 Mbps Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

18 Voice Over Internet Protocol (VoIP) A standard Internet connection can be used to make a phone call Basic requirements for VoIP include: – –Speakers – –Microphone – –Internet connection – –VoIP provider Allows free or low cost long distance Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

19 Cell/Smartphone Security Viruses can target cell phones. Antivirus software for mobile devices – –Symantec – –McAfee – –F-Secure Keep your cell/smartphone number private – –Use a virtual phone number Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

20 Portable Media Players (PMPs) Small devices that store and play music Many also handle video and still images Many formats for storing files – –MP3, AAC, and WMA for music – –DivX, MPEG-4, WMV and XviD for video How much music/video can be stored depends on the PMP’s storage space Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

21 Other Choices for Portable Media Management Some digital camera models Sony Playstation Portable Global positioning systems (GPS) Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

22 PMP Flash Memory Flash cards can add memory to portable media players – –Nonvolatile – –Noiseless – –Use very little power – –Hold between 64 MB and 4 GB of data Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

23 Legal Music Downloads Tethered downloads – –You pay for the music and you own it – –You are subjected to restrictions on its use DRM-free downloads – –No digital rights management on the files – –Song files can be moved from system to system and shared among users Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

24 Legal Music Downloads Subscription services – –Unlimited downloads to your PMP – –Songs usable only as long as you pay your monthly subscription fee Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

25 Podcasting Competes with radio and television Podcasts can be information, radio or TV shows, books on tape, audio plays, etc. People can listen when they wish. Can use podcasting software to automatically transfer new content. Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

26 Does not use film See your images instantly Better than cell phone cameras – –Digital cameras have a higher image resolution Most common file format is JPEG Digital Photography Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

27 Digital Video Digital video can be captured using – –Digital video cameras – –Cell/smartphones – –Webcams Digital video software allows you to – –Edit digital video – –Review clips frame by frame – –Reorder segments – –Correct color, balance, brightness, or contrast Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

28 Digital Video Files Common file formats – –QuickTime – –MPEG – –RealMedia – –AVI Consider codecs when choosing file formats – –Rules that squeeze audio and video information into less space Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

29 Getting Your Video Out to Viewers Transfer your video from digital device to computer – –USB – –Special sync cable Special devices can transfer video directly to YouTube Choose method of distribution – –YouTube – –DVD – –Webcast Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

30 Access to Digital Assets Netbooks – –Run fully featured OSs – –Weigh less than two pounds Internet tablets – –Lightweight, very portable – –No keyboard Notebook computers – –All capabilities of a desktop – –May weigh more than other two Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

31 Other Devices to Consider Sony PlayStation Portable – –Internet access – –Stores data files, videos, music, and images Amazon Kindle – –Stores up to 3,500 e-books Amazon Kindle Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

32 Ubiquitous Computing Computing that is inseparable from our everyday lifestyle Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

33 Chapter 8 Summary Questions What are the changes that have brought us a digital lifestyle? Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

34 Chapter 8 Summary Questions How has the move to digital information impacted both the business world and your life outside of work? Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

35 Chapter 8 Summary Questions How do cell/smartphone components resemble a traditional computer, and how do they work? Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

36 Chapter 8 Summary Questions Why would I use VoIP, and what does it offer that is unique? Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

37 Chapter 8 Summary Questions How is digital media different than analog? Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

38 Chapter 8 Summary Questions What can I carry in a portable media player, and how does it store data? Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

39 Chapter 8 Summary Questions What ways are there for me to create and to watch digital video? Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

40 Chapter 8 Summary Questions What change does ubiquitous computing bring to our lifestyles? Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall

Chapter 1 Chapter 8 41 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 © 2011 Pearson Education, Inc. Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall 41