“What it means is Eclipse now gets to expand its footprint beyond the traditional computing environment, and it gets to reach out to the mobile device.

TWO KINDS OF MOBILITY:

•USER MOBILITY

•DEVICE MOBILITY

WHAT IS MOBILE COMPUTTING:

•DEFECTOR STANDARD BY ITSELF

•MAJOR PART OF WIRELESS COMMUNICATION TECHNOLOGY

Application

Transport Network Data Link Physical

Network Network

Data Link Data Link Physical Physical

Application

Transport Network Data Link Physical

A SIMPLIFIED REFERENCE MODEL

The wireless devices represent the ultimate constrained computing device with:

•Less powerful CPUs,

•Less memory (ROM and RAM)

•Restricted power consumption

•Smaller displays

•Different input devices (e.g., a phone keypad, voice input, etc.)

On the network side, wireless networks are constrained by

•Less bandwidth

•More latency

•Less connection stability

•Less predictable availability

Goals, assumptions, and requirements:

The Internet is the network for global data communication with hundreds of millions of users. So why not simply use a mobile computer in the Internet?

Requirements:

•Compatibility

•Transparency

•Scalability and efficiency

•Security

APPLICATIONS:

1. Vehicles

2. Emergencies

3. Business

4. MOBILE AND WIRELESS DEVICES

5. Sensor:

6. Pager:

7. Mobile Phones:

8. Personal digital assistant:

9. Palmtop/pocket computer:

10.Notebook/Laptop:

CONCLUSION

Mobile Computing and Communications is useful for wireless Networks. The study of different versions will give differences between Mobile Computing and Communications, Access Control, Security etc.,

QUERIES????

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