CONCLUSION
In conclusion, today's computing has rapidly grown from being confined to one location. With mobile computing, people can work from  any location as long as they are connected. Also high speed connections promotes the use of mobile computing.
Being an emerging and growing technology, mobile computing continues to be a core service in computing and also Information Communication and Technology.

APPLICATIONS OF MOBILE COMPUTING

- Emergency Services.

- In companies.

- Stock Information Control.

- Credit Card Verification.

- Taxi Dispatch.

- Electronic Mail/Paging.

- Web Access.

- For Estate Agents.

- Vehicles.

- Travelling Salesmen.

- Location aware services.

- Entertainment.

Some of the above listed applications are going to be explained below;

Mobile computing is pervasive, it has the quality of being everywhere.

The following are used for application of mobile computing:

1.EMERGENCY SERVICES

 Mobile computing has the ability to support operations at the scene of emergency, in control   rooms and throughout the organizations, mobile computing is playing a great role in the life  saving work day after day.

Mobile computing creates one durable fully integrated system that allows first responders to maximize pre-hospital patient care and also operation efficiencies thereby saving costs, time and lives.

2.FOR ESTATE AGENTS

Mobile computing makes agents more productive. They can work either out in the field or at home. They can obtain current real estate information  by accessing multiple listing services and also immediate feedback regarding specific homes,with also faster loan approvals since applications can be submitted on the spot.

Mobile computing helps them to devote more time to clients. They get access to listing services from home, office or car when out with clients.

3.IN COURTS

Mobile computing is mostly applied in courts because defense counsels can take mobile computers in court. When the opposing counsel references a case which they are not familiar with ,they can use the computer to get direct real time access to online legal database services where they can gather information on the case and related precedents.

Therefore mobile computers allow immediate access to a wealth of information making people better informed and prepared especially in courts.

 4.IN COMPANIES

  Managers use mobile computers in some critical presentations to major customers. They can access the latest market share information, they can also revise the presentation to take advantage of the information at a small recess.

They can communicate with the office about possible new offers and call meetings for discussing responds to new proposals. Therefore, mobile computers can leverage competitive advantages.

5.CREDIT CARD VERIFICATION

Mobile Computing is used for credit card verification at point of sale terminals in shops, supermarkets and malls when customers use credit cards for transactions, the intercommunication required between the bank central computer and the POS terminal can take place quickly and securely over cellular channels in order to effect verification of the card usage.

6.TAXI DISPATCH

Securicor is a system that allows secure deliveries and also they are extremely useful. Using the idea of a centrally controlled dispatcher with several mobile units (taxis) .

Mobile computing allows the taxis to be given full details of the dispatched job as well as allowing it to be able to communicate information about their whereabouts back to the central dispatch office. The Securicor allows the central computer to be able to track and receive status information from all of its mobile secure delivery vans. Again, the security and reliability properties of the Cellular Digital Packet Data (CDPD)system shine through.

7.ELECTRONIC MAIL

Using Mobile Computing, access to the internet allows individuals to have a vast arrays of knowledge at his/her fingertips. Usage of a mobile unit to send and read emails is a very useful asset for business people, because it allows them to keep in touch with their colleagues as well as any urgent developments that may affect their work.

Paging is also achievable, it gives more intercommunication capability between people, using a single mobile computer device.

8.STOCK INFORMATION CONTROL

The use of small portable electronic databases accessed via amobile computer is ideal in environments where the access to stock is very limited i.e. factory warehouses.

Data collated could be directly written to a central database , via a CDPD network which holds all stock information, hence the need for transfer of data to the central computer at a later date is not necessary. This ensures that from the time a stock count is completed, there is no inconsistency between the data input on the portable computers and the central database.

ADVANTAGES AND DISADVANTAGES OF MOBILE COMPUTING

Advantages:

1 - Portability: The main merit of mobile computing is portability because you can carry it everywhere, you can get jobs done or even access your email.

2 - Increase in Productivity: Mobile devices can be used out in the field of various companies, it reduces the cost and time for clients and themselves.

3 - Entertainment: Mobile devices are used for entertainment purposes, for personal and even for presentations to clients and people.

4 - Cloud Computing: This service is available for saving documents on an online server and also to access them anytime anywhere when they have connection to the internet.

Disadvantages:

1 - Connectivity quality: As one of the disadvantages, mobile devices will need either Wi Fi connectivity or mobile network connectivity such as GPRS, 3G and in some countries even 4G connectivity ,that is why this is a disadvantage because if you are not near any of these connections your access to the internet is very limited.

2 - Security concerns: Mobile VPNs are unsafe to connect to, and also syncing devices can also lead to security concerns. Also, accessing a Wi Fi network can be risky because WPA and WEP security can be easily bypassed.

3 - Power Consumption: Due to the use of batteries in these devices, they tend to not last long, if in a situation where there is  no source of power for charging then that will certainly be a let down.

WHY MOBILE COMPUTING

 Mobile computing is all about small and portable computers, which includes PDAs (Personal Digital Assistants) like mobile phones, telephones, palmtops, laptops etc. In this rapid growing technological world, people are much more bound to work on computers and Internet. People are attracted towards mobile devices because of their major features.

Mobile computing can be defined as the ability to use technology that is not physically connected to any static network. Nowadays, most laptops and personal digital assistants(PDA) all have wireless cards or Bluetooth interfaces built into them for very good mobile internet access. Mobile computing is taking a computer and all other important files and software to the next level.

Mobile Computing are :

- Wireless devices.

- Portable and easy to carry everywhere.

- User interface attractive.

Therefore people prefer Mobile computing devices than any other.