Cloud Computing Definition
Cloud computing what is this. In today’s time, the number of computer and mobile users is continuously increasing. Due to which data storage is being given priority in all areas. All types of businesses whether small or big spend money. And apart from this, it also requires IT support and a storage hub.
Because of which all types of businesses are not able to spend so much money on IT infrastructure and support. In its place, this is a cheap and very good option.
Because of easy computation, data can be protected more efficiently. Big businesses are also getting attracted to cloud computing. Cloud computing requires very little hardware and software for the user.
For this, the user should only use a cloud computing system and interface software. Which is as easy as running a web browser. Banky work is managed automatically by the cloud network.
So, all of us have used cloud computing at some time. Many companies are providing cloud computing services like Google. Facebook. Amazon etc.
When using the e-mail service, our data is stored on the cloud server. And it is not on the computer. We do not see the technology and infrastructure used in cloud systems. Because it is built using HTTP, XML, Ruby, PHP, and other similar technologies.
The user can connect the cloud system to his computer laptop or mobile quite easily.
Cloud Computing History
Cloud Computing dates back to the 1960s. The Internet did not even begin properly then. The real beginning was 30 to 40 years later in 1990.
When a company called Salesforce started providing services to the people on its website. After that people started to understand it and their importance increased day by day.
After many such years, the speed of cloud computing started increasing rapidly. Today in the 21st century, many high-level companies like amazon, google. Also, Microsoft has also started offering its services in the field of cloud computing. Amazon started cloud computing in 2006.
Cloud Computing Benefits
Due to the low cost, many business organizations use cloud computing services. In this, the user uses the service as per his needs and pays only for the services used. It has the following advantages:
- Low cost of IT infrastructure.
- Less computer hardware and software required.
- Better performance.
- Fewer maintenance problems and minimum maintenance cost.
- Ease of software update.
- Compatibility between cloud computing systems and computer operating systems.
- Backup and recovery.
- Increase data security.
Cloud Computing Types
There are four models of cloud systems and the user can subscribe to any model as per their business requirements –
In this, cloud computing resources are used for a particular business organization. This system is mainly useful for intra business. In which computer resources are controlled and operated under a single organization.
In this computing resources are provided to the community and organization. A community cloud exists, where many organizations share access to a private cloud with similar security considerations.
For example, a series of franchises have their own public clouds. But are hosted remotely in a private environment.
Public cloud is commonly used in B2C (Business to Consumer) business. Computer resources are operated and controlled by the government. And also, academy, and business institutions.
A public cloud is where services are stored off-site and accessed on the Internet. Storage is managed by an external organization such as Google or Microsoft. This service provides the greatest level of flexibility and cost savings; however, it is more vulnerable than private clouds.
Hybrid Cloud This type of cloud is used only in both B2C and B2B businesses. This type of cloud system is called a “Hybrid Cloud” in which computing resources are connected to a different cloud.
A hybrid cloud model takes advantage of both public and private cloud services. By spreading your options across different cloud models, you get the benefit of each model.
For example, you can use a public cloud for your email to save on large storage costs. While keeping your highly sensitive data safe and secure behind your firewall in a private cloud.
Cloud Computing Services
Cloud mainly offers three types of services –
- Software as a Service (SaaS)
- Platform as a Service (PaaS)
- Infrastructure as a Service (IaaS)
Different types of businesses use these services as per their requirement.
1.SaaS-Software as a Service
SaaS or software as a service is the “software service distribution” model of cloud computing. Applications are hosted by a service provider or vendor. And made available to customers over the Internet.
SaaS becomes a very popular service delivery model in today’s times. This supports Service Oriented Architecture (SOA) or Web Services. Through the Internet, this service is made available to customers all over the world.
If we talk about the old way of data storage.The user had to buy the software to store the data. Then he had to install it on his computer.
Instead, in this new model that users can easily subscribe to the cloud service on a monthly basis. You can take advantage of the service, in addition, users can easily use SaaS service on almost all internet-enabled devices.
2.PaaS-Platform as a Service
It provides such a platform to the developers where they can build or build the application. This service can be hosted in the cloud itself. And the user can access it from anywhere through the internet.
For example, just like teachers provide paint colors, paper, brushes, etc. for children. So that they draw, students just have to do the painting. Similarly in PaaS, the user is provided with a platform. With different tools where he can give the application Can develop. New features are updated for users from time to time.
It provides a platform that supports application development. It is very beneficial for software developers, web developers, and other businesses. Besides software support and management services it provides, storage, networking, deploying, testing, collaborating, hosting. The facility and applications are also available.
3.IaaS-Infrastructure as a Service
Apart from PaaS, IS is a fundamental service of cloud computing. In this, the user can access computing resources on the Internet in a virtual way.
It provides various types of computing services and infrastructures. Such as virtual server space, network connections, bandwidth, load balancers, and IP addresses, etc. The networks are usually divided into free data centers. And hardware resources also work on a lot of services.
IaaS is a complete package of computing. It is very suitable for small-scale businesses as it has a relatively lower cost of IT infrastructure.
By using IaaS computing, any business can save a lot of costs. Such as maintenance, buying new components like -hard-drives, network connections, external storage devices, etc.
Pros And Cons For Cloud Computing
Following are the advantages and disadvantages of using cloud computing:
Cloud Computing Pros
- Using cloud computing saves you cost, because now you don’t have to invest on expensive system or any other infrastructure.
- Cloud services are very easy to access. Users can avail services with the help of computing devices and Internet.
- Companies can store their data in a centralized location, which makes data control easy.
- Cloud computing facilitates automatic data backup. That is, there is no risk of your hard drive crashing or data being erased.
- Most cloud services provide free and secure huge storage space for the user to store data.
Cloud Computing Cons
- Cloud computing is completely dependent on the Internet. It is beneficial as well as harmful for a business. If the internet connectivity of the cloud service provider is lost. Then your business stops for that much time.
- It is not right to rely solely on the cloud service provider for the privacy and security of your important data. This is why it is important to choose a reliable service provider.
- Internet is not completely safe, there is always a danger of cyber attack in it. So you always need to be alert.
- Data management is a headache under the cloud, as the cloud storage system has its own structure. So it is a little difficult to match it with your system.
- The user using cloud computing has minimal control over the functions of software and hardware, as IT resources are in remote servers.
Like everything, cloud computing has many advantages and disadvantages. If seen all over, this is a great technology. But if used without understanding it properly, then it can also cause damage.