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Mobile-Computing ppt.ppt
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
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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
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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.
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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
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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
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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
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10. Mobile Objects (Cont.)
1. A mobile object is
some code that
carries a state
2. Lives in a host
3. That visits places
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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
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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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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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