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What is cloud computing?


Cloud computing is a big thing but understanding the concept is very simple.Before going to tell about cloud computing I would like to say one thing

 First of all, if your going to do some projects about web applications the main thing is you must need machine i.e laptop or system(Including hard disk, ram, processor) moreover you need to install software(including license) related to design web applications.This project is going to do by only one person is fine you can buy a laptop.But if you are going to do a project for the big client you must need 10 or 20 machines moreover have to install the os, software, license, and processor.Whether it's a permanent means ok you can buy or the machine will use for 1 month or 6 months you don't need to buy a machine.In this situation, cloud computing is coming to help you.Now you can get an idea little bit even though I will explain briefly

What is cloud computing?

cloud computing is paying for what you are using or rending the services.They will provide you with a virtual machine.

For example, if you are going to use a machine from the cloud for an hour or day or month you have to pay money for how many hours or day that you are using and money depends upon your recruiting machine also.You can access your virtual machine that contains high specifications(8gb ram,corei7, some software) using low specification laptop or system.
So your data is storing some data center, not on your physical machine.Even Social media also cloud.We can upload or share anything so that it will not store anything on your machine

Types of services in cloud computing:

  • Infrastructure as a service(Windows, Linux, cluster)
  • Platform as a service(operating system)
  • Software as a service

Modes:

  • Private mode
  • Public mode
  • Hybrid mode
  • Community mode
Private mode: Cloud giving some private option also like some company giving mail id will work only in company surrounding

Public mode: you can use anywhere in the world like using Gmail

Hybrid mode: It is the combination of private and public mode

Community mode: It is like within the two organization.Consider company A and B.Here company A employers can access anything in company B same as like company B employers can access anything in company A.

Cloud computing providers:

The followings below are providing cloud computing
  • Google cloud platform
  • Microsoft Azure
  • Amazon web service
  • Adobe
  • IBM
  • Rackspace
  • Red Hat and etc
Now you may be getting a confusion about what is the difference between own server and cloud server.

Difference between own server and cloud server:

Own server: Investment cost is high and very tough to maintain, the hardware is permanent.

Cloud server: No investment cost, Billed based on usages, No/Low maintenance.we can increase or decrease hardware

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