What is Cloud Computing: introduction, types, advantages (2023)

Nowadays, every successful organization is present on the Internet, for which they need a data center, regardless of size. Traditionaldata centeris on-premises, which means that all its functions are performed at a physical location within the company's office space. A data center can be a few computers under a desk, a climate-controlled room filled with blade servers, or an entire building. It is managed by an internal IT team employed and paid by the company that owns the data center.

Now imagine that when you want to create a simple website or digitize entire business processes, in addition to building applications, you also have to create a data center for the organization. This means that you will have to buy hardware (servers), software and its licenses, create a network, build an infrastructure and hire a team of experts to manage or maintain this data center. Before setting up a data center, you need to estimate how many servers you need; there will be chances of having too much or too little gear.

What if you didn't have to worry about setting up your own data center and just focused on building applications? This is where cloud computing comes into play. Now let's consider what Cloud Computing is with examples in this article. Also, you can go toCloud computing trainingto get a deeper knowledge ofCloud computing.

What is Cloud Computing?

Cloud Computing is the delivery of computing services such as servers, data storage, databases, networking, software, analytics and intelligence over the Internet ("the cloud") to offer flexible resources, faster innovation and economies of scale. Put simply, instead of owning data centers, organizations can lease access to other people's infrastructure such as storage, computer servers, and databases fromCloud computingservice providers and pay only for the resources they use.

You only need to pay for the cloud services you use, which helps reduce your operational costs, run your infrastructure more efficiently, and scale your applications according to your business needs.

Who Uses Cloud Computing?

Organizations of different types, sizes and industries use the cloud for a wide variety of use cases, such as building user-facing web applications, data backup, sending email/SMS notifications, virtual workplaces, software development and testing, big data analytics, and disaster recovery. For example, telecommunications companies use cloud services to connect with their customers by sending different types of communication. Financial services companies use the cloud to detect and prevent fraud in real time.

How does cloud computing work?

What is Cloud Computing: introduction, types, advantages (1)

To understand how cloud computing works, let's break it down into two parts - the front end and the back end. The front end consists of the client's computer or computer network. The front end consists of the client's computer or computer network. The background consists of the various computers, servers and storage systems that make up the cloud. They are interconnected by a network, usually the Internet. The front end is the computer user or client side. The back end is the 'cloud' part of the system.

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Cloud computing deployment models

Deployment models specify different cloud types. Each organization has different needs, they must determine which cloud deployment model will suit them. There are mainly three cloud deployment models:

1. Public cloud

A public cloud is a collection of hardware, networking, storage, services, applications, and interfaces owned and operated by a third party for use by other companies or individuals. You access these services and manage your account using a web browser. These commercial service providers create a highly scalable data center that hides the details of the underlying infrastructure from consumers.

2. Private cloud

A private cloud is a collection of hardware, networking, storage, services, applications, and interfaces owned and managed by an organization for use by its employees, partners, or customers. A private cloud can be created and managed by a third party for the exclusive use of a single enterprise. A private cloud is a highly controlled environment that is not open for public use. It's basically just another way of running an on-site data center.

3. Hybrid cloud

Hybrid cloud is a combination of private cloud combined with usagepublic cloudservices where two cloud environments work together to solve business problems. By allowing data and applications to move between private and public clouds, the hybrid cloud gives your business more flexibility, more deployment options and helps optimize your existing infrastructure, security and compliance.

The goal is to create a hybrid cloud environment that can combine services and data from different cloud models to create a unified, automated and well-managed computing environment.

Types of cloud services

Cloud computing services are divided into three classes, according to the level of abstraction provided and the provider's service model:

1. Infrastructure as a service (IaaS in cloud computing)

The capability provided to the consumer is the provision of processing, storage, networks and other core computing resources. The consumer does not manage or control the underlying instrumentcloud infrastructurebut has control over operating systems, storage and installed applications; and possibly limited control of selected network components (eg, host firewall).

2. Platform as a service (PaaS in cloud computing)

The capability provided to the user is the deployment on the Cloud infrastructure of applications created or acquired by users using programming languages, libraries, services and tools supported by the provider. The consumer does not manage or control the underlying Cloud infrastructure including the network, servers, operating systems or storage, but has control over the deployed applications and possible configuration settings for the application hosting environment.

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3. Software as a service (SaaS in cloud computing)

The capability provided to the consumer is their applications running on the Cloud infrastructure. The ability provided to the user is to use the provider's applications running on the Cloud infrastructure. Applications can be accessed from different client devices through a thin client interface, such as a web browser (eg web-based email), or a programmatic interface.

The consumer does not manage or control the underlying cloud infrastructure, including the network, servers, operating systems, storage, or even the capabilities of individual applications, except for limited user-specific application configuration settings.

Examples and use cases of cloud computing

If you use an Internet service to send email, edit documents, watch movies or TV (like Netflix), listen to music, play games, or store images and other files, you're probably part of the cloud ecosystem, as Cloud Computing makes it all possible behind the scenes. There are many use cases of Cloud Computing and few are mentioned below:

1. Testing and Development

IT companies use cloud services for their software development environment. DevOps teams can quickly launch development, test, and production environments. This includes automated provisioning of physical and virtual machines.

2. Big Data Analytics

There is a vast amount of data collected every day from cloud applications, IoT devices and the users who interact with them. Cloud Computing enables an organization to leverage the computing power of Cloud Computing.

3. Cloud storage

Cloud storage allows files to be automatically saved to the cloud and then accessed, stored and retrieved from any device with an internet connection. Instead of maintaining data centers for storage, organizations can pay only for the cloud storage they use without having to worry about the day-to-day maintenance of the storage infrastructure.

Advantages of cloud computing

There are several advantages of using cloud computing over the traditional way. Below are a few benefits:

1. Cost savings

You only pay for the services you use; this eliminates the capital costs of purchasing hardware, software, data center setup and operating costs.

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2. Fast elasticity

Cloud service providers aggregate a large number of resources from their data centers and make them readily available. A service provider can easily expand its services to a large scale to cope with the rapid increase in service demands.

3. Global benchmark

With the cloud, you can expand your business to new geographies and deploy applications globally within minutes. Many cloud providers provide services in many countries, and placing applications closer to end users reduces latency and therefore improves user experience.

4. Reliability

Cloud services provide high availability with their robust infrastructure. You can easily backup data, disaster recovery, which makes business continuity easier and cheaper because data can be mirrored across different geographical locations on the cloud service provider's network.

5. Speed

Cloud computing services are mostly self-service and on-demand. You can easily provision any number of resources within minutes, giving businesses great flexibility to scale their applications at the right time and in the right location.

Disadvantages of Cloud Computing

Although there are many advantages of Cloud Computing, there are also a few disadvantages that you need to be aware of, such as:

1. Security and privacy

Although cloud service providers implement the best security standards and industry certifications, storing data and important files with external service providers always opens up risks. Any discussion involving data must address security and privacy, especially when it comes to managing sensitive data. You need to understand your cloud provider's shared responsibility model. You will still be responsible for what happens within your network and in your product.

2. Vulnerability to attack

In Cloud Computing, every component is online, which exposes potential vulnerabilities. Even the best teams suffer serious attacks and security breaches from time to time.

3. Limited control

Cloud services run on remote servers owned and operated by cloud service providers, making it difficult for companies to have a level of control over cloud infrastructure.

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The future of cloud computing and new technologies

Many companies are already using Cloud services to develop their business and create a global presence. Due to its advantages, Cloud Computing will be the most common deployment model for companies in the future. The future of Cloud Computing is bright and will provide benefits to both the host and the customer. There are many technologies emerging with cloud computing, such as:

1. Internet of Things (IoT)

The Internet of Things is one of the leading technologies, coming with constant innovations in real-time data analytics and cloud computing. We can easily do this with the help of Cloud Computing.

2. Serverless computing

Serverless architecture is the next evolution of monolithic application architecture after service-oriented architecture and microservice architecture.

3. Artificial intelligence (AI)

Artificial intelligence is a next-generation technology solution set to present the world of technology in a different light. However, building AI applications is complex for many companies because it requires machines with high computing power. Companies are looking to cloud solutions for machine learning and other deep learning tools. Due to its vast computing and storage options, cloud-based AI is becoming the most sought-after solution for companies of any size in realizing their AI endeavors.

Architecture of cloud computing

Architecture is how different components are combined to create a cloud system, which every employee of an organization can use for data-related operations. Speaking of cloud computing architecture, virtualization technology gathers various resources and software components in one place, calling it a cloud. There are different components in cloud architecture:

  • The front-end device from which the user accesses the network.
  • A backend platform is like a server that stores information that can be accessed by the user.
  • The delivery model that decides how the network will work and how the user will be able to access the data.
  • A trusted network where information will be stored and shared.

Bringing all these components together forms a cloud platform that the organization and its employees can use. This system helps users in many ways. First, it reduces the risk of data theft because online servers are much more secure than physical ones. Second, it enables remote working for everyone as there will be no problem with sharing data.

What is Cloud Computing: introduction, types, advantages (2)

Different architectures

Although no two cloud models are alike, the fundamentals of several models are similar. Therefore, the organization can use the model that it thinks will meet their expectations, make changes and enjoy all the benefits that this virtual data storage and sharing platform offers.

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Cloud Computing versus traditional IT infrastructure

Below are the differences between cloud computing and traditional IT infrastructure:


Traditional IT infrastructure

Cloud computing


Traditional computing is done on a physical server provided and managed by an organization. Companies own these servers

Cloud computing runs on external servers that enable hosting by third-party organizations such as Microsoft AZURE, Amazon AWS, Google GCP


In traditional computer companies, they have to spend upfront costs on hardware

Cloud computing works on a pay as you go model, you only pay for the number of resources you use


In traditional computer companies that had to put a lot of effort into securing their infrastructure, they had to hire security experts to protect their data

In cloud computing, cloud service providers specialize in storing data and their primary responsibility is data security


In traditional computing, you have to make proper estimates to buy hardware up front

Cloud Computing is flexible in this regard, you can use the resources according to your needs


One of manyadvantages of cloud computingare to reduce time to market for applications that must scale dynamically. Cloud computing brings many advantages in terms of cost, agility, scalability, resilience and more. Considering these advantages, many organizations use cloud services to create highly scalable and resilient applications.

The future with cloud services looks very bright with endless opportunities to explore and the survival of businesses depends on being able to adapt to new changes. So, take advantage of Cloud Computing and start your ownKnowledgeHut Cloud Computing obuka.


What is cloud computing its types and advantages? ›

Cloud computing is the delivery of computing resources, such as IT infrastructure or data center over the internet. This model allows businesses to rent storage space or access software programs from a cloud service provider, instead of building and maintaining their own IT infrastructure or data center.

What is cloud computing and its types? ›

Cloud computing is a general term for anything that involves delivering hosted services over the internet. These services are divided into three main categories or types of cloud computing: infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS).

What is cloud computing introduction? ›

Cloud Computing refers to manipulating, configuring, and accessing the hardware and software resources remotely. It offers online data storage, infrastructure, and application. Cloud computing offers platform independency, as the software is not required to be installed locally on the PC.

What is cloud computing short answer? ›

Simply put, cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.

What is main advantage of cloud computing? ›

By moving to the cloud, businesses can reduce their energy consumption and carbon footprint by up to 90%. Rather than having in-house servers and software, businesses can use cloud-based services to access the same applications and data from any computer or device with an internet connection.

What are the 3 types of cloud computing? ›

Types of Cloud Computing
  • Infrastructure as a Service (IaaS) ...
  • Platform as a Service (PaaS) ...
  • Software as a Service (SaaS)

What are the 5 main types of clouds computing? ›

Here are the five main types of cloud computing deployment systems:
  • Public clouds. Public clouds are a type of cloud computing run by a third-party cloud provider. ...
  • Private clouds. ...
  • Hybrid clouds. ...
  • Multi-clouds. ...
  • High-performance computing (HPC) cloud.
Jun 24, 2022

What is cloud computing example? ›

Emails, calendars, Skype, and WhatsApp are cloud computing examples that we use every single day. They make use of the cloud feature of remote accessibility of data to support our data in the cloud infrastructure, helping us access them thru the Internet anytime, anywhere.

What are the 4 cloud models? ›

There are four cloud deployment models: public, private, community, and hybrid. Each deployment model is defined according to where the infrastructure for the environment is located.

What is the use of cloud computing? ›

Who is using cloud computing? Organizations of every type, size, and industry are using the cloud for a wide variety of use cases, such as data backup, disaster recovery, email, virtual desktops, software development and testing, big data analytics, and customer-facing web applications.

How does cloud computing work? ›

How Cloud Computing Works. Cloud computing works by having companies host or maintain massive data centers that provide the security, storage capacity and computing power to support cloud infrastructure. Clients pay for the rights to use their clouds along with an ecosystem to communicate between devices and programs.

What is cloud computing in one sentence? ›

Cloud computing is the delivery of different services through the Internet, including data storage, servers, databases, networking, and software. Cloud storage has grown increasingly popular among individuals who need larger storage space and for businesses seeking an efficient off-site data back-up solution.

What are the pros and cons of cloud computing? ›

A list of advantages and disadvantages of cloud computing:
Advantages of CloudDisadvantages of Cloud
Optimized investments in hardware and softwareDowntime
No administrative or management stressLimited control of infrastructure
Easy accessibilityRestricted or limited flexibility
Pay-per-useOngoing costs
7 more rows
Jul 8, 2016

What is cloud computing and its components? ›

Cloud architecture refers to how various cloud technology components, such as hardware, virtual resources, software capabilities, and virtual network systems interact and connect to create cloud computing environments.

What are two advantages of using cloud storage? ›

What are the benefits of cloud storage?
  • Usability and accessibility.
  • Security.
  • Cost-efficient.
  • Convenient sharing of files.
  • Automation.
  • Multiple users.
  • Synchronization.
  • Convenience.
Oct 20, 2022

What are the four main advantages of cloud storage? ›

Here are some of the biggest advantages of using cloud storage.
  • Backup Your Data to the Cloud. ...
  • No More External Hard Drives. ...
  • Remotely Update and Sync Your Files. ...
  • Share Files Easily. ...
  • Remote Work Made Easy. ...
  • Keep Your Files Encrypted. ...
  • Storage for a Lifetime.
May 31, 2022

What are the 3 most common cloud types? ›

The three main types of high clouds are cirrus, cirrostratus, and cirrocumulus. Cirrus clouds are wispy, feathery, and composed entirely of ice crystals.

What are the 3 key concepts in cloud computing? ›

The services of cloud computing are divided into three main components like infrastructure service (IaaS), platform service (PaaS) and software service (SaaS). These three models are the main components of cloud computing technology as these help the user network to make use of the cloud networks in the organisation.

What are the 3 C's in cloud computing? ›

Organizations should look for partners who can deliver against the three C's of cloud transformation: convenience, cost transparency and control.

What are the 11 more major categories in cloud computing? ›

  • Public Cloud.
  • Private Cloud.
  • Hybrid Cloud.
  • Distributed Cloud.
  • Multi-Cloud.
  • Community Cloud.
  • Infrastructure as a Service (Iaas)
  • Platform as a Service (PaaS)
Mar 19, 2013

What are the 5 Vs of cloud computing? ›

That's why it's essential for users to understand cloud analytics and the five V's of big data: volume, variety, velocity, veracity and value.

What software is used in cloud computing? ›

Google's Drive. Google has become a force in cloud computing with its cloud-based platform Google Drive. The platform integrates with other Google tools and Microsoft Office files, making collaboration easier for team members.

What technology is used in cloud computing? ›

There are four major cloud computing technologies- Virtualization, Service Oriented Architecture, Grid Computing, and Utility Computing.

What are the 3 main types of cloud deployment models? ›

In general, there are three main cloud computing models available from the public cloud providers:
  • IaaS (Infrastructure as a Service) ...
  • PaaS (Platform as a Service) ...
  • SaaS (Software as a Service)
Sep 13, 2022

How many cloud models are known? ›

Cloud computing is offered in three different service models which each satisfy a unique set of business requirements. These three models are known as Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS).

Which is private cloud? ›

The private cloud is defined as computing services offered either over the Internet or a private internal network and only to select users instead of the general public.

What is the most important thing in cloud computing? ›

The most important area of concern in cloud computing is the delivery of computing services, including servers, storage, and databases, alongside software analytics and intelligence. Cloud computing offers faster innovation with flexible resources and economies of scale.

Who created cloud computing? ›

Cloud computing is believed to have been invented by J. C. R. Licklider in the 1960s with his work on ARPANET to connect people and data from anywhere at any time.

How easy is cloud computing? ›

Learning cloud computing is considered by most to be a challenging skill. This field's inherent complexity is one reason it's so difficult to learn. Computing itself is a complicated task. On top of that, when working with cloud models, you'll likely encounter platform-level incongruities and mismatches.

What is cloud computing example in daily life? ›

We use on-demand streaming services for watching sports, television, movies, and even live events, among other things. They're all based entirely on the development of cloud computing technology. The end-users benefit from affordable services even though providers use expensive hardware and software in their processes.

What is cloud computing with example for beginners? ›

Cloud Computing is a network of remote servers hosted on the internet for storing and retrieving data. The cloud provides a number of IT services such as servers, databases, software, virtual storage, and networking, among others. Companies that offer all the services are called cloud providers.

Can I learn cloud on my own? ›

You can start learning cloud computing from scratch even if you have very basic IT skills. You will just need to learn some of the main concepts, and how those concepts relate to each other. Then get some hands-on practice, especially in fixing problems.

How do I start cloud computing with no experience? ›

How to start a cloud career without experience
  1. Upskill yourself. One of the best ways to get started in any role if you have no experience, is to upskill yourself. ...
  2. Sign up for online courses. ...
  3. Apply for internships. ...
  4. Start an apprenticeship. ...
  5. Look for a graduate programme. ...
  6. Reach out to your network. ...
  7. Join the FDM Programme.
Jan 26, 2023

Can you learn cloud computing by yourself? ›

You can learn the principles and put them into practice on your own with the aid of classes like AWS Cloud Practitioner Essentials, Introduction to AWS Secrets Manager, Big Data Technology Fundamentals, and AWS Analytics Services Overview.

What are the 4 types of cloud computing? ›

There are four main types of cloud computing: private clouds, public clouds, hybrid clouds, and multiclouds.

What are the three main types of cloud computing? ›

Types of Cloud Computing
  • Infrastructure as a Service (IaaS) ...
  • Platform as a Service (PaaS) ...
  • Software as a Service (SaaS)

What is cloud computing examples? ›

Emails, calendars, Skype, and WhatsApp are cloud computing examples that we use every single day. They make use of the cloud feature of remote accessibility of data to support our data in the cloud infrastructure, helping us access them thru the Internet anytime, anywhere.

What are the two main types of cloud computing? ›

Types of cloud services

Infrastructure as a service (IaaS) Platform as a service (PaaS)

What are the 5 parts of cloud computing? ›

The National Institute of Standards Technology (NIST) lists five essential characteristics of cloud computing: on-demand self-service, broad network access, resource pooling, rapid elasticity, and measured service.

What are the 5 layers of cloud computing? ›

This reference model groups the cloud computing functions and activities into five logical layers and three cross-layer functions. The five layers are physical layer, virtual layer, control layer, service orchestration layer, and service layer.

What are the major types of cloud? ›

The list of cloud types groups all cloud genera as high (cirro-, cirrus), middle (alto-), multi-level (nimbo-, cumulo-, cumulus), and low (strato-, stratus). These groupings are determined by the altitude level or levels in the troposphere at which each of the various cloud types is normally found.

Why is it called cloud computing? ›

Cloud computing is named as such because the information being accessed is found remotely in the cloud or a virtual space. Companies that provide cloud services enable users to store files and applications on remote servers and then access all the data via the Internet.

Where is cloud computing used? ›

Who is using cloud computing? Organizations of every type, size, and industry are using the cloud for a wide variety of use cases, such as data backup, disaster recovery, email, virtual desktops, software development and testing, big data analytics, and customer-facing web applications.

What is the difference between cloud and cloud computing? ›

Essentially, cloud storage simply holds your data, while cloud computing allows you to do things with that data. The terms are also different in application. Most cloud computing programs are specifically designed for business use, while cloud storage is equally useful for both professional and personal needs.

What is the most important concern of cloud computing? ›

Answer: B) Data storage is the most important use of cloud computing.


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