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Mobile-Computing ppt.ppt

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Mobile-Computing ppt.ppt

  1. 1. 1 ANURAG COLLEGE OF ENGINEERING Aushapur(V), Ghatkesar(M), Medchal(D),T.S DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING MOBILE COMPUTING Under the guidance of :- Mr. S. Vijay Kumar Assistant Professor. Presented by: Mr. P. ESHWAR 19PQ1A0560
  2. 2. CONTENTS 1. What is mobile computing? 2. Comparison to wired networks 3. Why go mobile? 4. Types of wireless devices 5. Mobile objects 6. Security & Privacy 7. Applications of mobile computing 8. Challenges 9. Future of mobile computing 10. Conclusion 11. References 2
  3. 3. What Is Mobile Computing? What is computing? Operation of computers (according to oxfords advance learner’s dictionary) What is the mobile? That someone /something can move or be moved easily and quickly from place to place What is mobile computing? Users with portable computers still have network connections while they move 3
  4. 4. What Is Mobile Computing? (Cont.)  Mobile Computing is an umbrella term used to describe technologies that enable people to access network services anyplace, anytime, and anywhere. 4
  5. 5. Comparison to Wired Net. Wired Networks -high bandwidth -low bandwidth variability -can listen on wire -high power machines -high resource machines -need physical access(security) -low delay -connected operation Mobile Networks -low bandwidth -high bandwidth variability -hidden terminal problem -low power machines -low resource machines -need proximity -higher delay -disconnected operation 5
  6. 6. Why Go Mobile? • Enable anywhere/anytime connectivity • Bring computer communications to areas without pre-existing infrastructure • Enable mobility • Enable new applications • An exciting new research area 6
  7. 7. Types of Wireless Devices  Laptops  Palmtops  PDAs  Cell phones  Pagers  Sensors 7
  8. 8. Mobile Objects 1. A mobile object is some code that carries a state 8
  9. 9. Mobile Objects (Cont.) 1. A mobile object is some code that carries a state 2. that lives on a host 9
  10. 10. Mobile Objects (Cont.) 1. A mobile object is some code that carries a state 2. Lives in a host 3. That visits places 10
  11. 11. Mobile Objects (Cont.) 1. A mobile object is some code that carries a state 2. Lives in a host 3. That visits places 4. which is let in when trusted 11
  12. 12. Mobile Objects (Cont.) 1. A mobile object is some code that carries a state 2. Lives in a host 3. That visits places 4. which is let in when trusted 5. and barred when untrusted 12
  13. 13. Mobile Objects (Cont.) 1. A mobile object is some code that carries a state 2. Lives in a host 3. That visits places 4. which is let in when trusted 5. and barred when untrusted 6. and will refuse to go to untrustworthy places 13
  14. 14. Mobile Objects (Cont.) 7. Mobile objects can talk to their friends 14
  15. 15. Mobile Objects (Cont.) 7. Mobile objects can talk to their friends 8. but only by co- operation of the hosts 15
  16. 16. Security & Privacy Threats:  Wi-Fi networks are a shared network that makes it easier for others to eavesdrop on your communication.  Devices are Stolen and tampered.  Cryptography.  Connection 16
  17. 17. Security & Privacy Solutions:  Secure Web Browsing  Use secure, encrypted sessions.  Secure Internet Transactions  Use UCI’s VPN to encrypt your network traffic.  Always use a Personal Firewall.  Set the firewall to deny.  ALL incoming connections. 17
  18. 18. Applications of Mobile Computing (Cont.)  For Estate Agents  In courts  In companies  Stock Information Collection/Control  Credit Card Verification  Taxi/Truck Dispatch  Electronic Mail/Paging 18
  19. 19. Challenges  Disconnection  Low bandwidth  High bandwidth variability  Low power and resources  Security risks  Wide variety terminals and devices with different capabilities  Device attributes  Fit more functionality into single, smaller device 19
  20. 20. Future of Mobile Computing  Use of Artificial Intelligence  Integrated Circuitry -> Compact Size  Increases in Computer Processor speeds 20
  21. 21. Conclusion Mobile computing has severe limitations - however, it is far from impossible, and technology improves all the time Lots of challenges - some have (good) solutions, many others are still waiting to be solved 21
  22. 22. References http://www.doc.ic.ac.uk/~nd/surprise_96/journal/vol4/ vk5/report.html http://www.doc.ic.ac.uk/~nd/surprise_96/journal/vol1/vk5/art icle1.html http://www.cs.ucsb.edu/~ebelding/courses/284/w04/slides/int ro.pdf http://www.ansa.co.uk/ANSATech/ANSAhtml/98- ansa/external/9807tb/9807mose.pdf http://www.danishtechnology.dk/it/9238 22
  23. 23. 23 QURIES ?
  24. 24. 24 THANK YOU…

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