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What is cloud computing? How does cloud computing work?

Cloud Computing 


Using different computing resources, such as hardware and software, through a computer network system is called cloud computing. The method used to access some global facilities by connecting to the Internet is called cloud computing. Through this, the remote user gets the data, software and results of the processing through the computer.

Cloud computing services started in 2005. Amazon.com's Elastic Compute Cloud (EC2) was the first to offer this service. Although the concept of cloud computing is not new. The concept of central computing was introduced in the sixties. According to that idea, big companies plan to install a mega computer in every city. City dwellers will receive computer services through lines like electric or dish lines. The project did not materialize due to network speed limitations. The concept of grid computing in the 1990s is also basically a concept of cloud computing. At present, famous companies like IBM, Microsoft, Google etc. are providing cloud computing services.

We are using cloud technology while using the internet. Cloud computing is being used to provide email or any online service. Just like we don't rent a house, in cloud computing, data storage space is available for rent. Most clouds are essentially one large data centre; Where servers are rented subject to certain conditions.

According to the definition given by the United States National Institute of Standards and Testing, cloud computing is a model of outsourcing customer information and various applications to a service provider's system that will have three characteristics. namely

1. All kinds of needs of small and big buyers will be met. The service provider can provide as much service as the customer wants.

2. The customer can provide the service when he wants. The buyer can increase or decrease his demand whenever he wants.

3. The customer does not need to reserve any service in advance. The buyer will pay for what he uses.



1. Public cloud: The cloud system in which any user can connect from any place through the internet and take various benefits is called the public cloud. Eg-mail, yahoo.com, mail.google.com etc.

2. Private Cloud: The cloud system in which different resources are used for a group or organization is called a private cloud.

Following are the names of different types of public cloud computing:

□ Software as a service (Saas) 

□ Storage as a service (STaas)

□ Network as a service (NAAS)

□ Data as a service (DaaS)

□ Security as a service (SEcaas) 

□ Database as a service (DBaaS)

Advantages of cloud computing: Cloud computing is convenient for all types of business organizations. Some of the benefits are mentioned below:

1. Affordable: Cloud computing is perhaps the most cost-effective way of processing and maintaining computers. In the case of conventional software, each user has to purchase a license copy separately. In this case, it is not necessary.

2. Memory capacity: The memory capacity in cloud computing is almost infinite. In this method, the user does not have to think about the memory capacity.

3. Backup and restore capability: Since all data is stored on the server and retrieved from the server, there is no need to worry about data restoration.

4. Software Integration: Cloud computing software can be integrated automatically. In this way, the user can work with the best application software for his needs.

5. Easy access to information: After registering in cloud computing in this way, the user can access information from any location through the internet. 

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