TECHNOLOGY IN ACTION

Chapter 8 Digital Devices and Media: Managing a Digital Lifestyle

Mobile Devices Digital Basics The Power of Smartphones Mobile Computing

Digital Basics Objectives 8.1 Describe how digital convergence has evolved. 8.2 Explain the differences between digital and analog signals. Copyright © 2017 Pearson Education, Inc. 8-4

The Power of Smartphones Objectives 8.3 Describe the technologies used to communicate across cellular networks. 8.4 Explain how to effectively use cellular devices and mobile Internet access and how to keep your devices secure. Copyright © 2017 Pearson Education, Inc. 8-5

Mobile Computing Objectives 8.5 Demonstrate an understanding of the range of different mobile computing devices. 8.6 Describe how to evaluate which mobile device is appropriate for a specific user. Copyright © 2017 Pearson Education, Inc. 8-6

Digital Basics Digital Convergence Single unifying device Media, Internet, entertainment, and telephone needs Smartphones Electronics systems in cars Digital Living Network Alliance (DLNA) Copyright © 2017 Pearson Education, Inc. 8-7

Digital Basics Digital vs. Analog Any kind of information can be digitized Digital Long strings of numbers Analog Continuous waves Analog-to-digital conversion Copyright © 2017 Pearson Education, Inc. 8-8

The Power of Smartphones Cellular Technology Telephony—use of equipment to provide voice communications over a distance Copyright © 2017 Pearson Education, Inc. 8-9

The Power of Smartphones Cellular Technology Smartphone functions and features Cellular (cell) phones Mobile, cellular technology Feature phones Processors Operating Systems Copyright © 2017 Pearson Education, Inc. 8-10

The Power of Smartphones Cellular Technology Memory stores information and programs OS—read-only memory (ROM) Data is stored in separate internal memory chips Copyright © 2017 Pearson Education, Inc. 8-11

The Power of Smartphones Cellular Technology Primary input devices Microphone Touch pad Output devices Speaker Liquid crystal display (LCD) OLED: newer display screen Copyright © 2017 Pearson Education, Inc. 8-12

The Power of Smartphones Cellular Networks Cellular network Base transceiver station Mobile switching center Digital processing Analog-to-digital converter Digital signal processor Copyright © 2017 Pearson Education, Inc. 8-13

The Power of Smartphones VoIP Digital phone service Technology similar to Skype IP Phones Copyright © 2017 Pearson Education, Inc. 8-14

The Power of Smartphones VoIP Advantages Calls can be placed anywhere you have Internet access Free or low-cost long-distance calling Portability Disadvantages Sound quality and reliability Loss of service at home if the power is out Security risks Copyright © 2017 Pearson Education, Inc. 8-15

The Power of Smartphones Smartphone GPS Enhanced 911 program Automatically gives precise location Built and operated by the U.S. Department of Defense Copyright © 2017 Pearson Education, Inc. 8-16

The Power of Smartphones Using Smartphones and Keeping Them Secure Synchronizing (syncing) Two main ways to transfer information Wired Wireless Wired solutions USB port Flash card Wireless synchronization Copyright © 2017 Pearson Education, Inc. 8-17

Using Smartphones and Keeping Them Secure Text Messaging Short message service (SMS) Short text messages Up to 160 characters Convenient and quick Uses cell phone network Multimedia message service (MMS) Copyright © 2017 Pearson Education, Inc. 8-18

Using Smartphones and Keeping Them Secure Mobile Internet Copyright © 2017 Pearson Education, Inc Connection speed will depend on which technology you are using (WiFi, 3G, 4G)

Mobile Computing Variety of Devices Tablets Operating systems Processors Touch-screen interfaces Long battery life Similar software applications Similar Internet connectivity Bluetooth Copyright © 2017 Pearson Education, Inc. 8-20

Mobile Computing Variety of Devices 2-in-1s Combine tablet with keyboard Serve as both laptop and tablet More expensive than a tablet but a more powerful CPU Limited memory, CPU speed, and screen size Copyright © 2017 Pearson Education, Inc. 8-21

Mobile Computing Variety of Devices Ultrabooks Full-featured computers Very thin, lightweight computing solution Don’t have optical drives Offer SSD drives Weigh under three pounds Full-size keyboards 13″ to 15″ screens Copyright © 2017 Pearson Education, Inc. 8-22

Mobile Computing Selecting a Device Guidelines to determine what fits your personal needs Power Screen size and resolution Style of keyboard Battery life Weight Number of devices Copyright © 2017 Pearson Education, Inc. 8-23

The Impact of Digital Information Digital Publishing Digital Music Digital Media

Digital Publishing Objectives 8.7 Describe e-readers, and discuss the different types of e-readers that are available. 8.8 Explain how to purchase, borrow, and publish e-texts. Copyright © 2017 Pearson Education, Inc. 8-25

Digital Music Objectives 8.9 Describe how digital music is created and stored Summarize how to stream and publish digital music. Copyright © 2017 Pearson Education, Inc. 8-26

Digital Media Objectives 8.11 Explain how best to create, print, and share digital photographs Describe how to create, edit, and distribute digital video. Copyright © 2017 Pearson Education, Inc. 8-27

Digital Publishing E-Readers Electronic text (e-text) Using e-Texts Amazon Barnes and Noble Library Project Gutenberg Self-publish Copyright © 2017 Pearson Education, Inc. 8-28

Digital Publishing Digital Music Analog-to-digital converter (ADC) Sampling rate File types Digital rights management (DRM) Copyright © 2017 Pearson Education, Inc. 8-29

Digital Media Digital Photography Digital cameras Capture images and video Convert to digital data Factors that determine image quality Quality of lenses Image sensor size File format and compression applied Color management software Camera's resolution Copyright © 2017 Pearson Education, Inc. 8-30

Questions ?

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