Mobile Computing

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. 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. 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. 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. 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. 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. Types of Wireless Devices
 Laptops
 Palmtops
 PDAs
 Cell phones
 Pagers
 Sensors
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8. Mobile Objects
1. A mobile object is
some code that
carries a state
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9. Mobile Objects (Cont.)
1. A mobile object is
some code that
carries a state
2. that lives on a host
9

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. 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
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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. 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
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14. Mobile Objects (Cont.)
7. Mobile objects can
talk to their friends
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15. Mobile Objects (Cont.)
7. Mobile objects can
talk to their friends
8. but only by co-
operation of the hosts
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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
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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.
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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
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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
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20. Future of Mobile Computing
 Use of Artificial Intelligence
 Integrated Circuitry -> Compact Size
 Increases in Computer Processor speeds
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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
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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
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23. 23
QURIES ?

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THANK YOU…