Introduction to Mobile Computing

Mobile Computing

It is a technology that enables data and information to be transmitted on another wireless connected device without need of a physical link, it is mainly classified into:

•    Mobile communication  they are infrastructure that enable communication they include protocols and services
•    Mobile hardware physical components that receive services of mobility.
•   Mobile software programs running on a mobile hardware

Classification of Mobile Computing

•   Personal Digital Assistant (PDA)  easy to use electronic planners that also aid in information sharing
•    Smartphone’s it is a combination of a normal mobile phone,PDA and Camera enabled phone.
•   Tablet PC and I-Pads larger touch screen enabled combination of PDA and a mobile phone.

Advantages of Mobile Computing

•   Enable users can be able to work from anywhere as long as there is connectivity
• Saves time taken to move from home to your workstation.
• Work can be done effectively and efficiently from any location.
•   Easy to carry out any research hence limiting field work
•   Can be a source of entertainment through videos and music.

Disadvantages of Mobile Computing

•    They readily face transmission interference
•   They are prone to hacking
•  They are source of health hazard
• They don’t have are reliable  power supply
• Availability of less graphical features and animations
• Small keyboards making it difficult to type

Measure taken to mitigate security issues

• Installing Security Hardware and Software.
• Educating users on security issues
• Auditing and developing sound, effective policies to govern mobile computing.
• Enforcing proper access rights and permissions.
• Though scrutiny of staff to be hired. 

Emerging Trends in Mobile computing

• increased the  mobile capacity and speed using new modulation techniques ag  GSM
•     Introduction of radio communication in close proximity 
•     Introduction of 4G 
• GPS(geographic positioning system) commonly used in navigation
•  Access to WIMAX (Worldwide Interoperability for Microwave Access )infrastructure

Mobile Cloud Computing

. it when mobile computing processing is done in cloud, data is stored in cloud, and the mobile device used as an output device.

Architecture of Mobile Cloud computing

M CC includes four types of cloud resources:

• Distant mobile cloud
• Distant immobile cloud
• Proximate mobile computing entities
• Proximate immobile computing entities
• Hybrid

Problem  faced in cloud computing

• Unreliable transmission platform
•   Integration of mobile computing environments
• Movement to normal operation to cloud is challenging     
• Congestion in the cloud service
• Prone to security issues

Mobile browser

It is a web browser that is used in a mobile device

Examples are

•   Android browser
•  Opera mini
•     Internet explorer
• Chrome
• Blackberry browser
• Safari Browser