Computer Concept

Introduction to cloud computing

Apr 21, 2020

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In this article you will learn about cloud computing, categories, types, advantages and disadvantages of cloud computing including private, public and hybrid cloud. These days storing the data is becoming more tricky. We have an abundance of data that needs to be stored somewhere. Do we think that our computers and PC are sufficient for storing large chunks of data? Then what do you think? What should be the solution? For the last 7-8 years dropbox has worked well. But the cloud is better than dropbox. In this blog, we will discuss the Introduction to cloud computing in detail. Firstly, we will know the meaning of cloud computing.

“Cloud computing is the technique of on-demand liberation of IT resources above the Internet with pay-as-you-go pricing”

In the cloud, we can harness technology services as a substitute for buying, owning, and maintaining physical data centers and servers, such as computing power, databases and storage on an as-required basis from Amazon Web Services which is one of the best cloud providers.

Categories of Cloud Computing

IaaS: It stands for Infrastructure as a Service. It is a form of cloud computing that provides virtualized computing resources over the internet. It is the basic layer of cloud computing. Here you can outsource different kinds of IT infrastructures like networking, processing, servers, and other resources. You can pay per service in this model.

PaaS stands for Platform as a Service. it is a kind of cloud computing model in which a 3rd party provider delivers software and hardware tools. These are such tools that are required for the hardware development of users over the internet. A PaaS provider hosts the software and hardware on its infrastructure.

Also check: Classification of programming languages

SaaS: It stands for Software as a Service. it is a software distribution model in which a 3rd party provider hosts applications and makes them available to customers above the internet. Mainly in the SaaS model, the software is provided by cloud providers via the use of the internet. Here applications are uploaded online and you can download them anytime if you are having internet facility. You also don’t need to install the software.

Types of the cloud

Public cloud

The public cloud usually acts as a SaaS service provided to the user. It is considered a cost-effective option for the users. The expenses are fulfilled by service providers only.

Advantages of public cloud

It has high reliability
It has zero maintenance costs.
It is high demand.
It is cost-friendly

Disadvantages of public cloud

Data is not secure.
It lacks SLA specifications.

Also check: what is system?

Private cloud

The private cloud has good in terms of security. It is basically deployed by different organizations. This can be either outsourced or can be built on-premises.

Advantages of private cloud

To building and manage data
It is more customizable
It has high scalability
It is more secure

Hybrid cloud:

A hybrid cloud is the grouping of a private and public cloud. It is able to provide more elasticity to businesses while having control over precarious operations and assets.

Advantages of hybrid cloud

It is more flexible.
It is cost-effective.
It has great scalability.

Advantages of cloud computing

Features	Advantages Description
Cost-Effective	It basically doesn’t require extra hardware. You also don’t need to hire anyone to maintain it. All buying is done by a cloud service provider.
High Speed	It allows you to make use of service quickly in few seconds without wasting too much time.
Reliability	You are always updated with new updates.
Automatic Software Integration	Software integration is done automatically. You don’t need extra efforts in customization. You just need to add up the things based on your preferences.
Strategic edge	It offers you to access the latest and trendy applications at any time.
Backup	If data is in the cloud, it is safe you can easily recover it.
Unlimited storage	It provides unlimited storage capacity
Mobility	It can be accessed anywhere. You only need an internet connection
Pay-per-use	You don’t need to spend a huge amount of money. Just pay for the services that you opt.

Disadvantages of Cloud Computing

Features	Disadvantages description
Variable Performance	Performance always changes.
Security threat	There are a lot many security issues.
Poor connection	There may some internet problems