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Technology in Action. Chapter 8 Digital Lifestyle: Managing Digital Data and Devices. Chapter Topics . Changes that have brought a digital lifestyle The impact of a digital lifestyle Cell phones and smartphones Voice over Internet Protocol Digital media versus analog media

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technology in action
Technology in Action

Chapter 8

Digital Lifestyle: Managing Digital Data and Devices

chapter topics
Chapter Topics
  • Changes that have brought a digital lifestyle
  • The impact of a digital lifestyle
  • Cell phones and smartphones
  • Voice over Internet Protocol
  • Digital media versus analog media
  • Portable media players
  • How to create and watch digital video
  • Ubiquitous computing
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

Digital Lifestyle: What Are the Advantages of a Digital Format?
cellular phones and smartphones
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
how cell smartphones work
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.
how cell smartphones work1
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.
cell smartphone hardware
Cell/Smartphone Hardware
  • Processor (CPU)
    • Coordinates sending data between components
    • Runs the operating system
    • Popular processors include
      • Samsung SC
      • Texas Instruments OMAP
      • Marvell Xscale
cell smartphone operating systems
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
cell smartphone memory and storage
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.
cell smartphone hardware1
Cell/Smartphone Hardware
  • Input devices
    • Microphone
    • Keypad
    • Graffiti pad
    • Touch screen
    • Digital camera
  • Output devices
    • Speaker
    • LCD display
cell smartphone software
Standard software

To-do list

Contacts manager

Calendar

Additional software

Microsoft Word, Excel, Outlook, and PowerPoint

Games

Tools

References

Cell/Smartphone Software
cell smartphone file transfer and synchronization
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
cell smart p hone text messaging
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
cell smartphone internet connectivity
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)
cell smartphone internet connectivity1
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
voice over internet protocol voip
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
cell smartphone security
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
portable media players pmps
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, WMVand XviD for video
  • How much music/video can bestored depends on the PMP’sstorage space
other choices for portable media management
Other Choices for Portable Media Management
  • Some digital camera models
  • Sony Playstation Portable
  • Global positioning systems (GPS)
pmp flash memory
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
legal music downloads
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
legal music downloads1
Legal Music Downloads
  • Subscription services
    • Unlimited downloads to your PMP
    • Songs usable only as long as you pay your monthly subscription fee
podcasting
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.
digital photography
Digital Photography
  • 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 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

Digital Video
digital video files
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
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 -- Webcast

DVD

Getting Your Video Out to Viewers
access to digital assets
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
other devices to consider
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

ubiquitous computing
Ubiquitous Computing
  • Computing that is inseparable from our everyday lifestyle