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Technology In Action Chapter 8 1 Mobile Computing Advantages and limitations of mobile computing Mobile computing devices: –Pagers –Cell phones –PDAs –MP3.

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Presentation on theme: "Technology In Action Chapter 8 1 Mobile Computing Advantages and limitations of mobile computing Mobile computing devices: –Pagers –Cell phones –PDAs –MP3."— Presentation transcript:

1 Technology In Action Chapter 8 1 Mobile Computing Advantages and limitations of mobile computing Mobile computing devices: –Pagers –Cell phones –PDAs –MP3 players Synchronizing mobile devices with computers Tablet PCs Laptops NEXT SLIDE

2 Technology In Action Chapter 8 2 Mobile Computing: Is it Right for You? Advantages Convenience Boost productivity Communicate with others anywhere Access to electronic information Limitations Expensive Battery life Small screen display Slower Internet speed NEXT SLIDE

3 Technology In Action Chapter 8 3 Mobile Computing Devices Pagers Cellular phones MP3 players Personal digital assistants Tablet PCs Laptop computers NEXT SLIDE

4 Technology In Action Chapter 8 4 Paging Devices Small wireless devices that receive numeric messages (phone numbers) Recent technological advancements enable: –Voice paging: Receiving voice messages –Alphanumeric paging: Receiving numeric and text messages –Two-way paging: Receiving and sending text messages NEXT SLIDE

5 Technology In Action Chapter 8 5 Cellular Phones Full-featured communication and information storage devices Features include: –Auto-redial –Call timers –Voic –Voice-activated dialing –Internet access –Text messaging –Personal information management NEXT SLIDE

6 Technology In Action Chapter 8 6 Cell Phone Hardware Microprocessor (CPU): –Coordinates data between components –Runs the operating system Memory: –ROM stores the operating system –Internal memory chips store: Contact data Ring tones Images Small application programs Microprocessor Memory NEXT SLIDE

7 Technology In Action Chapter 8 7 Cell Phone Hardware Input devices: –Microphone –Keypad –Graffiti pad –Touch-screen –Digital camera Output devices: –Speaker –LCD display Microphone Keypad LCD display Speaker NEXT SLIDE

8 Technology In Action Chapter 8 8 Cell Phone Features Text messaging: –Short Message Service (SMS): Send messages up to 160 characters –Multimedia Message Service (MMS): Send text, sound, images, and video clips Internet connectivity: –Wireless Internet service provider –Maximum speed of 14.4 Kbps –Micro-browser software NEXT SLIDE

9 Technology In Action Chapter 8 9 MP3 Players MP3: –Format for storing music MP3 player: –A small device that stores and plays music Storage space determines the number of songs stored: –Memory chips 64 MB to 256 MB –Hard drive up to 40 GB –Sampling rate NEXT SLIDE

10 Technology In Action Chapter 8 10 MP3 Flash Memory Used to add additional memory to MP3 players Types of flash memory: –Compact Flash: 64 MB to 1 GB –Multimedia (MMC) and SmartMedia: 128 MB –Secure Digital: 512 MB –Sony Memory Stick: 128 MB NEXT SLIDE

11 Technology In Action Chapter 8 11 MP3 Ethical Issues Is it illegal to download MP3 files? –MP3.com: Song files are on a public server Permission is given by the artist or recording company to place the files on the server A fee is paid to download a file. –Napster: A file exchange site Song files were borrowed from users’ computers (peer-to-peer (P2P) sharing) Sued for copyright infringement Is it illegal to download MP3 files? –MP3.com: Song files are on a public server Permission is given by the artist or recording company to place the files on the server A fee is paid to download a file. –Napster: A file exchange site Song files were borrowed from users’ computers (peer-to-peer (P2P) sharing) Sued for copyright infringement NEXT SLIDE

12 Technology In Action Chapter 8 12 Small devices that store digital information Known as palm computers or handhelds PDA hardware includes: –CPU –Operating system –Storage capabilities –Input/output devices –Ports Personal Digital Assistants (PDAs) NEXT SLIDE

13 Technology In Action Chapter 8 13 PDA Input and Output Devices Input devices Touch-screen with stylus Keyboards: –On-screen –Integrated –Folding Digital cameras Output devices LCD displays: –Grayscale –Color NEXT SLIDE

14 Technology In Action Chapter 8 14 PDA Processors Popular processors: –Motorola DragonBall –Texas Instruments OMAP –Intel XScale Comparing processors: –Speed –Performance: Benchmarking –Power consumption NEXT SLIDE

15 Technology In Action Chapter 8 15 PDA Operating Systems Palm OS Uses less memory than Pocket PC Easy to use graphical interface Features include: –Calendar –To-do list –Contact information –Viewing Videos –Playing MP3 files Extra application software is available Pocket PC Scaled-down version of Windows More expensive than Palm OS Features include: –PDA version of Microsoft Word and Excel –Viewing videos –Playing MP3 files Extra application software is available NEXT SLIDE

16 Technology In Action Chapter 8 16 PDA Memory and Storage ROM stores the operating system and the basic programs RAM stores additional applications and data Flash memory is used for additional storage NEXT SLIDE

17 Technology In Action Chapter 8 17 PDA File Transfer and Synchronization PDA files can be transferred to a desktop using: –Flash card readers –Cradles Synchronizing updates files on both the PDA and desktop Wireless transfers: –IrDA –Bluetooth NEXT SLIDE

18 Technology In Action Chapter 8 18 PDA Internet Connectivity An Internet connection requires a wireless ISP Web pages are accessed using Wireless Application Protocol (WAP) Web clipping enables information from Web pages to be formatted for PDAs NEXT SLIDE

19 Technology In Action Chapter 8 19 PDA Software and Accessories Standard software: –To-do list –Contacts manager –Calendar Additional software: –Microsoft Word and Excel –Games –Tools –References Blueboard: –PDA display acts as a drawing board –Connects to four other PDAs NEXT SLIDE

20 Technology In Action Chapter 8 20 Tablet PCs Portable computers with handwriting recognition and speech recognition Two monitor modes: –Laptop –Tablet NEXT SLIDE

21 Technology In Action Chapter 8 21 Tablet PC Hardware Tablet PC hardware includes: –CPU –Operating system –Storage capabilities –Input/output devices –Ports Digital ink technology: –Pressure sensitive screen –Digital pen NEXT SLIDE

22 Technology In Action Chapter 8 22 Tablet Software Windows XP Tablet PC is the operating system Applications programs compatible with Windows XP are available NEXT SLIDE

23 Technology In Action Chapter 8 23 Laptops Also known as notebooks Computing power of a desktop Weigh 6 pounds NEXT SLIDE

24 Technology In Action Chapter 8 24 Laptop Hardware DVD/CD-RW drives Hard drives RAM Hot-swappable bays: –Remove a drive and replace it with another type Keyboard Built-in mouse LCD displays NEXT SLIDE

25 Technology In Action Chapter 8 25 Laptop Operating Systems Same operating systems as those found on desktops Power management: –Shuts down the hard drive –Turns off the monitor –Puts the computer into standby mode NEXT SLIDE

26 Technology In Action Chapter 8 26 A full set of ports: –Parallel –Monitor –USB –Modem –Ethernet –Audio jacks –FireWire –PCI type I/II card slots Laptop Ports NEXT SLIDE


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