javajourn: Cloud Computing Explained

Cloud Computing Explained

What actually Cloud Computing Is ?
Cloud computing is a dynamic way to keep data and run our desktop applications and services.

In cloud,a user can hold and manage his files which can be in any format .

In cloud computing all our required data and services resides inside in a secure server.

Some Famous Cloud Storage Services are:

CLICH HERE to look at the Review of these cloud storage services.

Cloud computing provides Software,Platforms and Infrastructure Services.

All you needs is a fast internet connection to use it.

Colud computing provides us 3 main features:

Software As A Service(SAAS)-It deals with applications.
Platform As A Service(PAAS)- It deals with Operating System.
Infrastructure As A Service(IAAS) -It deals with Hardware and System Requirements.

Infrastructure as a Service (IaaS) :

The IAAS of Cloud deals with the Infrastructure provision of the servers used in Data Centers.
The Server Infrastructure should be of a reliable environment for any application to run properly. This facility is given by the Data-Center Owners.
E.G: Facebook uses Prineville Data Centre.
To Know about Data Centres and servers used by other Web Services, just Look Here : DatacenterKnowledge.com
The Server Configurations,such as Processor,Memory,Storage,Load Balancers,Networking Components,etc and other Hardwares comes under the IAAS Category.
Infrastructure as a Service is sometimes referred to as Hardware as a Service (Haas).
The service provider owns the equipment and is responsible for housing, running and maintaining it.
Eg: Amazon EC2

Platform as a Service (PaaS) :

Platform as a Service (PaaS) is a delivery of a computing platform over the web.
Operating System, Execution environment for programming languages, Database, Web servers,and other Middlewares comes under the PAAS model.
The End user can feel the visibility of PAAS to a certain extent and nothing about IAAS.
But,the proper implementation and functionality of PAAS depends only on an efficiently deployed IAAS .

Software As A Service (SaaS) :

All the Applications that are used under a cloud comes under the services of SAAS.
The SAAS is the only visible part of a Cloud.
In Software as a Service, someone owns the software in the huge data center .The user have to just pay the subscription fee and use it.
Here, the user does n’t need to worry about developing and maintaining the application.
The Softwares are virtually placed in a number of servers.
By virtualising the application, the user is able to access his Softwares in a faster manner and the tasks are shared among the virtual machines,as the Load balancers of IAAS distributes the work.
Here is a clear example SAAS of Cloud which can be understood by assuming a CAR.
Actually a legal user have to buy a software he needs and he have to pay for it by net cash. It is like buying a CAR.
But using SAAS of a Cloud,is just like a “Call taxi”.
The significant difference is that ,a legal user of a software has to install and deploy them and has to maintain it.
But in Cloud user doesn’t need to deal with any maintaining issues. User just pay for what he uses.
Hence we can say the Cloud as “Pay as you Go” service, just similar to the Call Taxi.
Examples of SaaS includes : Google Apps.

-Hope this gave you some basic idea on Cloud Computing.

With Regards,

L.Noor Mohammed.

Posted by droided.dev at 06:50