Mobile Computing
Definition <ul><li>A technology that allows transmission of data, via a computer, without having to be connected to a fixe...
Introduction <ul><li>Emerging technology with intercross of many subjects. </li></ul><ul><li>Human–computer interaction to...
Purpose <ul><li>Provide any clients at any time in any location with useful, accurate and timely information. </li></ul><u...
Aspects <ul><li>Mobile communication </li></ul><ul><li>Mobile hardware  </li></ul><ul><li>Mobile software </li></ul>
Mobile communication <ul><li>Communication between moving body, or moving body and fixed objects. </li></ul><ul><li>Featur...
Mobile hardware  Mobile software
Mobile software <ul><li>Run on handheld computers, PDAs, EDAs,  smartphones and cellphones.  </li></ul><ul><li>Popularity ...
Mobile computing <ul><li>Portable technologies. </li></ul><ul><li>Internet access on the go. </li></ul><ul><li>Laptops, PD...
WiFi <ul><li>Common, cheap </li></ul><ul><li>Radio waves used to broadcast Internet signal from wireless router. </li></ul...
Cellular broadband <ul><li>Cellular modem or AirCard used to connect to cell towers.  </li></ul><ul><li>AirCard fits into ...
Others <ul><li>Cloud computing. </li></ul><ul><li>Use website services from mobile computers.  </li></ul><ul><li>Access to...
Importance <ul><li>Increasing business value. </li></ul><ul><li>Staying connected.  </li></ul><ul><li>Email to Facebook, S...
Future <ul><li>Wireless connect and pocket PC </li></ul><ul><li>Balance between autonomy and interdependence </li></ul>Dav...
Challenge and Suggestion <ul><li>1. Constraints for Mobility </li></ul><ul><li>  </li></ul><ul><li>Mobile components are r...
<ul><li>2. Extended Client-Server Model </li></ul><ul><li>Security  </li></ul><ul><li>System  </li></ul><ul><li>Rethinking...
<ul><li>3. Reliability in Presence of Disconnection </li></ul><ul><li>   WiMAX (Ease of Use) </li></ul><ul><li>- Worldwide...
<ul><li>4. Security and Privacy   </li></ul><ul><li>Payment, E-agency, E-currency  </li></ul><ul><li>Cyber-crime </li></ul...
<ul><li>5. Battery Technology </li></ul><ul><li>faster processors with mutil-cores and high-end graphic card  </li></ul><u...
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Mobile computing

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Mobile computing

  1. 1. Mobile Computing
  2. 2. Definition <ul><li>A technology that allows transmission of data, via a computer, without having to be connected to a fixed physical link. </li></ul><ul><li>( Koudounas and Iqbal) </li></ul>
  3. 3. Introduction <ul><li>Emerging technology with intercross of many subjects. </li></ul><ul><li>Human–computer interaction to be transported during normal usage. </li></ul><ul><li>Hotspot in computing technology sector </li></ul><ul><li>One of the four far-reaching implications technologies. </li></ul><ul><li>New technology grwoing up with mobile communication, Internet, database, distributed computing... </li></ul>
  4. 4. Purpose <ul><li>Provide any clients at any time in any location with useful, accurate and timely information. </li></ul><ul><li>Altering people's life style and working method drastically. </li></ul>
  5. 5. Aspects <ul><li>Mobile communication </li></ul><ul><li>Mobile hardware </li></ul><ul><li>Mobile software </li></ul>
  6. 6. Mobile communication <ul><li>Communication between moving body, or moving body and fixed objects. </li></ul><ul><li>Features: </li></ul><ul><ul><li>Mobility. </li></ul></ul><ul><ul><li>Complicated to propagate radio wave. </li></ul></ul><ul><ul><li>Severe noise and interference. </li></ul></ul><ul><ul><li>Complex system and network configuration. </li></ul></ul>
  7. 7. Mobile hardware Mobile software
  8. 8. Mobile software <ul><li>Run on handheld computers, PDAs, EDAs, smartphones and cellphones. </li></ul><ul><li>Popularity of these platforms has risen considerably since the first handheld computers invented in 1980s. </li></ul>
  9. 9. Mobile computing <ul><li>Portable technologies. </li></ul><ul><li>Internet access on the go. </li></ul><ul><li>Laptops, PDAs, standard cell phones. </li></ul><ul><li>Indispensable way of life. </li></ul>
  10. 10. WiFi <ul><li>Common, cheap </li></ul><ul><li>Radio waves used to broadcast Internet signal from wireless router. </li></ul><ul><li>Anyone can jump on if not encrypted. </li></ul><ul><li>Commonly used in public places to create hotspot. </li></ul><ul><li>Hotspot must be located, stay put within broadcasting range. </li></ul>
  11. 11. Cellular broadband <ul><li>Cellular modem or AirCard used to connect to cell towers. </li></ul><ul><li>AirCard fits into PC Card or ExpressCard slot, delivering Internet access on the go. </li></ul><ul><li>Needn’t remain stationary as signal remain strong. </li></ul><ul><li>Cell phones and PDAs also use it. </li></ul><ul><li>Access considered premium service which increases cost. </li></ul>
  12. 12. Others <ul><li>Cloud computing. </li></ul><ul><li>Use website services from mobile computers. </li></ul><ul><li>Access to a company’s VPN by tunneling through Internet. </li></ul>
  13. 13. Importance <ul><li>Increasing business value. </li></ul><ul><li>Staying connected. </li></ul><ul><li>Email to Facebook, Skype to socializing sites, cloud computing to VPNs, </li></ul><ul><li>No longer do without mobile computing anymore. </li></ul>
  14. 14. Future <ul><li>Wireless connect and pocket PC </li></ul><ul><li>Balance between autonomy and interdependence </li></ul>David Krebs, analyst, VDC introduced how mobile computing involved in next 10 years http://www.youtube.com/watch?v=-MnX6zJzKIU&feature=player_embedded
  15. 15. Challenge and Suggestion <ul><li>1. Constraints for Mobility </li></ul><ul><li>  </li></ul><ul><li>Mobile components are resource-poor relative to static elements. </li></ul><ul><li>Mobility is essentially hazardous </li></ul><ul><li>Mobile connection is highly flexible in performance and variability. </li></ul><ul><li>Mobile computing is interdependent on energy source </li></ul><ul><li>It requires us to rethink the traditional  approaches to information access. </li></ul>
  16. 16. <ul><li>2. Extended Client-Server Model </li></ul><ul><li>Security </li></ul><ul><li>System </li></ul><ul><li>Rethinking and extending </li></ul><ul><li>May suffer temporarily blurring </li></ul>Temporary Blurring of Roles resource-rich server and certain connectivity security and system administration changes
  17. 17. <ul><li>3. Reliability in Presence of Disconnection </li></ul><ul><li>  WiMAX (Ease of Use) </li></ul><ul><li>- Worldwide Interoperability for Microwave Access </li></ul><ul><li>- June 2001 </li></ul><ul><li>- High speed internet access and flexible ease of use </li></ul><ul><li>- Current :120 Mb-it/s downlink and 60 Mb-it/s up-link per site  </li></ul><ul><li>- Release 2 expected to be commercial in 2011-2012 </li></ul>
  18. 18. <ul><li>4. Security and Privacy   </li></ul><ul><li>Payment, E-agency, E-currency </li></ul><ul><li>Cyber-crime </li></ul><ul><li>The way mobile security is developing as: </li></ul><ul><li>     1.  Authentication </li></ul><ul><li>Access to documents </li></ul><ul><li>Handling of personal information </li></ul><ul><li>Privacy safeguard </li></ul><ul><li>2.  Authorization </li></ul><ul><li>Requires high supervision from servers to clients.  </li></ul><ul><li>3.  Encryption </li></ul><ul><li>Decryption </li></ul>
  19. 19. <ul><li>5. Battery Technology </li></ul><ul><li>faster processors with mutil-cores and high-end graphic card </li></ul><ul><li>battery power </li></ul><ul><li>cloud computing </li></ul><ul><li>faster, safer, elastic and full-managed </li></ul>

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