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Mobile computing -- Introduction


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Mobile computing -- Introduction

  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>