2. Chapter 8: Mobile Computing BY Chasity Cummings Cummings 1

3. Devices Mobile Computing Devices: portable electronic tools such as cell phones, smartphones/PDA portable media players (ipods), and notebooks. Cummings 2

4. Negatives of having a device Going mobile isn’t for everyone. The mobile devices have miniaturized, and they’re more expensive and less rugged than stationary desktop equipment. Cummings 3

5. Knowing what mobile device is right for you ● Knowing whether you are going to need to communicate with other when you’re not at home or the office. o This could mean talking on the phone or checking emails. Being available all the time. ● Knowing whether you need to make changes on a file if your not at your desk. o A phone such as a PDA/smartphone is powerful device to hold of that data. ● Knowing whether you want to use the internet when you’re not at home. o A device that is web-enabled allows you to have constant access to the Internet ● Knowing whether the device is convenient and productive for you. Cummings 4

6. Device Limitations 1)What are some device limitations of mobile devices? ● Battery Life ● The screen is small on most devices ● The speed of Internet connection available to mobile devices. Cummings 5

7. Are Mobile Devices Right for you? Cummings 6 Consideration YesNo When i’m away from my desk, I need to communicate with other both with voice and email I need to access my electronics information wherever I am. I need to access the Internet when I’m away from my desk. The added convenience and productivity of mobile devices are important to me My needs match the limitations of devices (such as short battery life, small display screen, and slower Internet connection speeds.) Most of my living and travel locations are covered by wireless Internet access It is worth the added expense for me to go mobile.

8. What mobile device is for you? Cell Phones: traditional phone services such as calling waiting and voicemail. They also have calendars, contacts, databases, text messaging, e-mail, GPS, and Internet browsing capabilities. Portable Media Players: You can carry music, video, and other digital files. PDA/smartphones:This is a PMP as well as a cellular device. handheld devices that provide solutions when running software such as Excel or Word. subnotebooks: run fully featured operating systems but weigh in at 2 pounds or less. notebooks and tablet PC’s: they are powerful and have larger screens than PDA/smartphones and subnotebooks. Cummings 7

9. Cellular Phones Cell phones offer all of the features available on a traditional telephone system, including auto-redial, call timers, and voice-mail capabilities. Some phones have voice activated dialing. Cell phones also offer: ● Internet ● Text Messaging ● PIM features ● GPS Services ● Digital image and video Capture Cummings 8

10. Cell Phone Hardware Cell phones are so advanced that they have many of the same component as a computer such as: ● a processor (CPU) ● memory ● Input and Output Cell phones also require software and has its own operating system (OS) Cummings 9

11. Cell phone processor The processor coordinates sending all of the data between the other electronic components inside the phone. It also run the cell phone’s operating system, which provides a user interface so that you can change the phone setting, store information and play games. Cummings 10

12. How Cell phones work 1.When you speak into a cell phone, the sound enters the microphone as a sound wave. 2.The analog-to-digital converter chip converts your voice’s sound waves into digital signals. 3. The digital data must be compressed, or squeezed into the smallest possible space so that it will transmit more quickly to another phone. 4. The processor cannot perform the mathematical operations required to stage quickly enough, so a specialized chip called the digital sound processor. 5. The digital data is transmitted as a radio wave through the cellular network to the destination phone. 11

13. Cell Phone Internet Connectivity You can receive Internet service provider (ISP) for Internet access for your desktop or notebook computer. Phone companies provide cell phone calling plans usually double as wireless ISPs. ● Internet connectivity plans, and often text messaging plans, are usually known as data plans. Cummings 12

14. Cell phone virus Viruses can target cell phones, they usually don’t happen, but manufactures and software engineers brace themselves for a when it does happen. Cummings 13

15. Portable Media Players Portable Media Players are small portable devices that enable you to carry your MP3 Files. Many smartphones are capable of storing and playing media files. Depending on the player, you can carry hours of music or videos. Cummings 14

16. PMP Hardware Most MP3 players use built-in flash memory. The PMPs that support video use a hard drive and can store. While the less expensive ones use flash memory. Cummings 15

17. Flash Memory Cards Flash Memory Cards are noiseless and featherlike, use tiny amounts of power, and slides into a special slot in the player. Also, flash memory can be erased and rewritten with new data. Cummings 16

18. All portable media players come with software that enables you to transfer your audio and video files from your computer onto the player. To transfer large volumes of data onto your PMP you must use a high-speed port. Cummings 17

19. PDA/Smartphones ● A personal digital assistant (PDA) is a small device that allows you to carry and process digital information. ● Smartphones are cell phones that have advanced memory and processing powering. Cummings 18

20. Hardware ● Smartphones feature touch sensitive screens. ● Also they have a pen like device called a stylus ● They have LCD screens in a variety of resolutions Cummings 19

21. Cummings 20

22. Question #2 Discuss the ethical dilemma in balancing the benefits of GPS and the costs to our privacy when using this tracking information. ● It enables the complete rollout of the Enhanced 911 (E911) program. ● It also means your cell phone records may include precise tracking information that indicates where you are when you make a call. Cummings 21

23. Global positioning system (GPS) ● A technology enables you to carry a powerful navigational aid. ● GPS computes your location anywhere on Earth from a system of orbiting satellites. Cummings 22

24. Notebooks The most powerful mobile computing solution is a notebook computer (laptop computer). Cummings 23

25. Hardware ● Notebooks can be equipped with Blu-ray and DVD/CD-RW drives. ● The input devices on a notebooks include keyboards and a built-in mouse. ● The output devices would be the large display screens. Cummings 24

26. Notebook batteries and accessories Notebooks have rechargeable batteries. They have two types: ● Lithium ion ● Nickel metal hydride Memory effect: that the battery must be completely used up before it is recharged. The batter won’t hold as much charge as it originally does. Cummings 25

27. Tablet PCS A tablet PC is a portable computer that is lightweight, and features advanced handwriting recognition, and can be rotated into a clip-board style Cummings 26

28. Notebook or Desktop Desktop systems are invariably a better value in terms of computing power gained for your dollar. Desktop systems also are more reliable of the amount of vibration that a notebook experiences. Cummings 27

29. Thank You Cummings 28