Mobile Computing is a technology that allows transmission of data, voice and video via a computer or any other wireless enabled device without having to be connected to a fixed physical link.

2.  Introduction
 Distinguish b/w wireless & Mobile
 Mobile Devices
 Challenges in mobile computing
 Merits
 Future Scope
 Applications
 Conclusion

3.  Wireless networking technology has
engendered a new era of computing, called
mobile computing. Mobile Computing is an
umbrella term used to describe technologies
that enable people to access network services
any place, anytime, and anywhere.

4.  Wireless refers to the method of transferring
information between computing devices, such
as a personal data assistant (PDA), and a data
source, such as an agency database server,
without a physical connection.
 Mobile simply describes a computing device
that is not restricted to a desktop.

5.  Laptop computers
 PDA’s and handheld PCs
 Pagers
 Smart phones and cellular phones
 Task devices, such as bar code
scanners
 Blue tooth
 Bridge
 Here we have seven different types of mobile
devices.

10. BAR CODE SCANNER

12. USED TO CONNECT THE DEVICES
USING THE SIGNALS

13. WIRED CONNECTIONS
WIRELESS CONNECTIONS
USING SIGNALS

14.  Low Bandwidth
 Power Limitations
 High Error Rate
 Security

15.  LOW BANDWIDTH:-Wireless networks
deliver lower bandwidth than wired networks.
As a result mobile applications have to be
carefully designed to control the bandwidth
consumption.
 HIGH ERROR RATE:-The network quality
varies as the mobile computer moves across the
heterogeneous network connections.The
wireless environment exhibits higher error
rates, which results in retransmission and
effects the quality of services

16.  POWER LIMITATIONS:-Mobile computers are
concerned with the limited power supply, an
issue that does not appear in distributed wired
environment .Hardware improvements on
batteries can help to lengthen the life of a
charge and reduce battery weight.

17.  SECURITY:-Security and privacy are of specific
concerns in wireless communication because of
the ease of connecting to the wireless link
anonymously.

18.  Improving the data collection process
 Improving data accuracy
 Reducing paperwork
 Enforcing collection of more complete information
 Facilitating collection of more useful information
 Eliminating redundant data entry
 Reducing administrative costs
 Reducing billing errors
 Reducing data backlog
 Improving information flow
 Allowing faster adaptation to changing business
conditions

19.  Information access via a mobile device is
plagued by low available bandwidth, poor
connection maintenance, poor security, and
addressing problems. Unlike their wired
counterparts, design of software for mobile
devices must consider resource limitation,
battery power and display size. Consequently,
new hardware and software techniques must
be developed. For example, applications need
to be highly optimized for space, in order to fit
in the limited memory on the mobile devices

20.  Consumer Goods.
 Transportation.
 Utilities.
 Delivery & Route Sales
 Government.
 Healthcare.
 Market Research.
 Pharmaceuticals

21.  Mobile computing is rapidly becoming
popular, and user demand for useful wireless
applications is increasing.
 Additionally, this paper shows how these
behavioral extensions serve as a powerful
abstraction for practical systems