Mobile computing:Introduction,History,Function and its types,productivity,connectivity,cloud computing,cellular boadband,wifi ,security,mobile computing vs ubiquitous computing,challenges,Future wireless network and computing.

1. Mobile Computing
presentation

2. What is Mobile Computing
• 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.

3. History
• Developments in mobile technology have led to
many different types of mobile computing .
Though mobile computing technology has
existed since the 1980s,it was in the late 1990s
and 2000s that advances in the technology put it
into the hands of numerous consumers.

4. Mobile computing
function
User mobility
Network mobility
Device mobility

5. User mobility
• User mobility refers to a user who has access to
the same or similar telecommunication service
at different place.i.e.the user can be a mobile
and the service will follow him.
•Network mobility
• Network mobility is the mobility of an entire
network that changes its point of attachment to
internet as a single unit.

6. Device mobility
Device mobility is a new feature of CUCM
allows CUCM endpoint to be dynamically
reconfigured based on their actual location
as determine by the IP address that is used
by the device.

7. Productivity
• Matching a device with your mobile business
should be easy. You can choose from:
• Ultra-portables
• Mobile engineering workstation
• Easily expandable memory
• Disk space
• Fast processors for optimum performance

8. WiFi
The most commonly used and least
expensive wireless access service is
WiFi .
WiFi uses radio waves to broadcast
an internet signal from a wireless
router to the immediate
surrounding area
If the wireless network is not
encrypted,anyone can jump on.
WiFi is commonly used in public
places to create hotspots.

9. Cellular Boardband
• An alternative to WiFi is cellular broadband .
• This type of mobile computing technology
utilizes a cellular modern or air card to connect
to cell towers for internet access.
• The air card fits into the PC card or Express card
slot of a notebook or laptop,delivering internet
access on the go.

10. Cloud Computing
Cloud computing provides
access to a network-like
environment with various
applications and virtually
unlimited resources so that
field representatives , can
utilize website resource
rather than being supplied
with company software and
data.

11. Connnectivity
• Need access to emails , video conferencing or
updates from the home office .
• Laptop keep you connected anytime , virtually
anywhere with :
• Integrated WiFi and buletooth .
• Optional broadband or optional 3G/4G services .

12. Security
 Keep data as secured by
protecting data with:
 hard drive encryption .
 optional biometric
fingerprint scanners.
 optional smart card
locking systems .
 Tracking and Recovery
service .
 firewall and virtual private
network security.

13. Mobile Computing vs.
Ubiquitous Computing
• Mobile Computing is a generic term describing the
application of small, portable, and wireless computing
and communication devices. This includes devices like
laptops with wireless LAN technology, mobile phones,
wearable computers with Bluetooth or IRDA interfaces,
and USB flash drives.
• Ubiquitous computing (ubicomp , or sometimes
ubiqcomp ) integrates computation into the
environment, rather than having computers which are
distinct objects. Another term for ubiquitous computing
is pervasive computing. Promoters of this idea hope
that embedding computation into the environment
would enable people to move around and interact with
computers more naturally than they currently do.

14. Challenges in mobile computing
• Mobility means changes
• Hardware
▫ Lighter, smaller, energy management, user interface
• Low bandwidth, high bandwidth variability
▫ Kbit/s to Mbit/s, bandwidth fluctuation
• Security risk
▫ Devices more vulnerable, endpoint authentication harder
• Location awareness
▫ Locality adaptation
• Higher loss-rates, higher delays, more jitter
▫ Connection setup time, hand-off
• Restrictive regulations of frequencies
▫ Frequencies have to be coordinated

15. Future mobile and wireless
networks
• Improved radio technology and antennas
▫ smart antennas, beam forming
▫ dynamic spectrum allocation
• Core network convergence
▫ IP-based, quality of service, mobile IP
• Ad-hoc technologies
▫ spontaneous communication, power saving,
redundancy
• Simple and open service platform
▫ more service providers, not network operators only

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