What is Cloud Computing [definition and uses]

To understand the concept of cloud computing exactly , firstly forget the storage devices such as hard disc , Memory chip , hard drives  etc. Because of there is no any relation between cloud computing and these storage devices for storing the information of people , organization or of any company. Cloud computing refers a way by which we utilities the application software for storing the information and data on the Internet Server in cloud.

About Cloud

The first term of cloud computing i.e. cloud can be defined as Internet or Network. In another way we can say that cloud a region in the space which can be used  by us remotely . Cloud can be used  by us using network by two way i. e. private Network or Public Network as VAN , LAN , WAN etc.

What's cloud computing

    Cloud computing refers to maintaining , organizing  , manipulating , configuring and accessing
the data over Network. It offers the facility of accessing the application online and by the  way it also provide a place for data storage and application. Once data is stored on network then data can be accessed from anywhere on any device at any time, which solves the platform dependency problem. Hence , Cloud Computing makes our business application more collaborative and  mobile.

Basic Cloud Computing Concept

There is certain models and services which makes cloud computing feasible and ease to access by the end user. These models are 

• Service models

• Deployment models

Service models

Service model is the basic model on which clouding computing is based. This model has been categorized in three services.These three services are as follows

                               1. (PaaS)  Platform as a Service  

                               2.  (IaaS) Infrastructure as a Service 

                               3. (SaaS) Software as a Service 

Service model can be categorizes on basis of another fact also which can be taken as XaaS i.e. Anything as a Service. This can be Business as a service, Database as a Service or Network as a service. Infrastructure as a Service is the fundamental level of service.

Platform as a Service(PaaS)

This service model is used for runtime environment for  application,deployment and development etc.
PaaS make services such as application , development and deployment easy,quick and cost effective.

Infrastructure as a Service (IaaS)

 Infrastructure as a service model utilizes the basic resources in cloud computing such as physical machine , virtual machine or virtual devices etc. Compare to other model like Platform as a service,
Software as a service , IaaS users are responsible for managing application, data, runtime and  middleware.

Software as a Service (SaaS) 

This service model uses the software applications as a service for users. This model is mostly used as a service in cloud computing and it run on the web application which is managed by the third party and used by client through the web application.

Deployment Model

Deployment model of cloud computing is related to method of access of data to the cloud i.e. what will be model of cloud and how data will be accessed? This model have been calegorizes in four type which is  given below ...

• Private cloud

• Public Clod

• Hybrid Cloud

• Community Cloud

Private cloud 

  This cloud model is related to the security of client and it can be access by only permitted user based on location or on - permission. This cloud model is not able for public and it has its own design and efficiency according to the client requirement.

Public Cloud

  Public Cloud Model is available for each and every client and user. It become available on all over the network. One of the best example of public cloud is Google on which hosted account can be accessed by everyone. Public cloud model best suited for business requirement for hosting the data on all over the network for public uses.

Hybrid cloud

 This cloud model is the mixture of both public cloud as well as private cloud. On network critical activities is done by private cloud and non-critical activities is manipulated by public cloud.

Community Cloud

  Community cloud belong to an individual community and shared between organisation or with other community. The main purpose of these communities is their relation of business activities. It is cost effective because of cost is shared between group of communities and organisation.

Benefits of Cloud Computing

• Manipulation and Configuration of application is easy  online.

• All over the Internet anyone can access the application utilities.

• Online development and deployment and programming runtime environment is offered online by Cloud Computing.

• User need not to install a piece of software for accessing and manipulating the cloud application.

•  Cloud resources are available on all over the network in such a manner that provide the facility of independent access to any types of client. 

• Cloud Computing service is on-demand service that means it can be accessed anytime and anywhere without permission of cloud service provider.

• Cloud computing is so much cost effective  because of this offers higher utilization with greater efficiency and it just require only Internet connection.

• Cloud computing offers load balancing of the data that is more reliable for the client.              

 Risk with cloud computing

•  First major risks of cloud model is security. Data is managed by third party on the network so it is possibility of sharing the public info to the another organization.

• With a low band width of internet service, cloud computing concept cannot be utilized by the user.

• The benefit of cloud computing cannot be taken without internet connection.