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What is Cloud Computing – Definitive Guide – Updated 2024

Cloud computing concept
IEEE BLP January 5, 2024

What is Cloud Computing – Definitive Guide – Updated 2024


With the rapid evolution of technology, the term “cloud computing” has become ubiquitous. But what exactly is cloud computing? In this comprehensive guide, we’ll demystify the cloud, delve into its various components, and highlight why it’s pivotal for students, professionals, and academicians alike. The global cloud computing market size was valued at USD 337.76 billion in 2022. It is projected to reach USD 1412.39 billion by 2031, growing at a CAGR of 17.23% during the forecast period. Let’s dive in.

Laptop with cloud computing diagram

What is Cloud Computing?

At its core, cloud computing delivers various services, including storage, computing power, and databases, over the Internet (the “cloud”). Instead of owning their own computing infrastructure or data centers, companies can rent access to anything from applications to storage from a cloud service provider. This provides efficiency, flexibility, and scalability which traditional systems simply can’t match.

Cloud Computing Courses

In the realm of cloud computing, various cloud computing courses cater to all levels of knowledge. These courses provide both theoretical understanding and practical skills.

Covers core cloud computing concepts, software virtualization, and their role in IoT application development.

Focuses on cloud deployment models (IaaS, PaaS, SaaS), multi-tenancy, resource pooling, APIs, and pay-per-use for IoT application development.

These courses bridge theory and industry skills, making them valuable for individuals at different expertise levels.

What is Virtualization in Cloud Computing?

Virtualization is the technology that allows the creation of a simulated, or virtual, computing environment rather than a physical one. It plays a crucial role in cloud computing by enabling multiple operating systems to run on a single physical machine.

business technology cloud computing service concept and with developer team working concept

Advantages of Cloud Computing

Cost-Efficient: Reduces the capital cost of buying hardware and software.

Scalable: Easily scale up or down as your business demands.

Performance: Major cloud services run on a worldwide network of secure data centres, which are regularly upgraded to the latest generation of fast and efficient computing hardware.

What is IaaS in Cloud Computing?

IaaS, or Infrastructure as a Service, is one of the primary service models of cloud computing. It offers virtualized computing resources over the Internet. With IaaS, users can rent IT infrastructures such as virtual machines, storage, and networks on a pay-as-you-go basis.

What is Data Center in Cloud Computing?

In cloud computing, a data centre is a physical facility that organizations use to house their critical applications and data. Cloud data centres are the backbone of cloud services, providing the hardware and software components that power the cloud.

What is the Number One Concern About Cloud Computing?

The primary concern for most businesses and individuals regarding cloud computing is security. With data being stored off-premises, there’s always a fear of unauthorized access, breaches, and potential data loss.

What is SaaS in Cloud Computing?

Software as a Service (SaaS) allows users to connect to and use cloud-based applications over the internet. Common examples include email, calendar, and office tools (like Microsoft Office 365).

SaaS - software as a service

What is a Hypervisor in Cloud Computing?

A hypervisor, also known as a virtual machine monitor, is a software, firmware, or hardware layer that creates and runs virtual machines. It separates the physical hardware from the operating system, enabling multiple OS to run simultaneously on a single physical machine.

What is Cloud Computing Replacing?

Cloud computing is replacing traditional on-premises computing infrastructure. Before the cloud, organizations had to invest heavily in physical hardware and software. Now, they can access the same resources virtually, saving on costs and enhancing scalability.

What is PaaS in Cloud Computing?

Platform as a Service (PaaS) provides a platform and environment for developers to build applications and services over the Internet. PaaS services are hosted in the cloud and accessed by users via their web browser.

PaaS (Platform as a Service)

What is FaaS in Cloud Computing?

Function as a Service (FaaS) is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage application functionalities without complex infrastructure. It’s often associated with serverless computing.

FaaS in cloud computing

What is AWS Cloud Computing?

Amazon Web Services (AWS) is Amazon’s cloud computing solution that offers a mix of IaaS, PaaS, and SaaS. With a vast array of services, AWS is a leader in the cloud industry, catering to businesses of all sizes.

What is Scalability in Cloud Computing?

Scalability in cloud computing refers to the capability to handle growth or shrinkage in resource demands effectively. It ensures that as demand increases, the system can easily scale up, and as demand decreases, it can scale down.

What is Elasticity in Cloud Computing?

Elasticity is the ability of a system to adapt to workload changes by provisioning and de-provisioning resources in an autonomic manner. It ensures that services are always available and run efficiently.

What is Load Balancing in Cloud Computing?

Load balancing distributes incoming internet traffic across multiple servers, ensuring no single server is overwhelmed with too much traffic. This helps in maximizing speed and capacity utilization and ensuring no server is a bottleneck.


Cloud computing is reshaping the way businesses and individuals utilize technology. With its promise of scalability, flexibility, and cost-efficiency, it’s no wonder that the cloud has become a fundamental pillar in the IT realm. Whether you’re a student, an industry professional, or an academician, understanding cloud computing is crucial in this digital age.

Ready to embark on a transformative cloud computing journey? Explore our comprehensive courses tailored for various cloud computing paradigms. Learn more and elevate your skills today: Check here.


1. What is cloud computing in simple words?

Cloud computing is the delivery of computing services like storage, software, and processing power over the internet rather than from a personal computer or local server.

2. What is cloud computer with example?

Cloud computing is like using Google Drive or Dropbox. Instead of saving files on your computer, you save them online so you can access them from any device, anywhere.

3. What is cloud computing used for?

Cloud computing is used for data storage, hosting websites, running applications, streaming audio and video, delivering software on demand, and much more.

4. What is the perfect definition of cloud computing?

Cloud computing is the on-demand delivery of IT resources over the internet with pay-as-you-go pricing, without the users needing to own or maintain physical infrastructure.

5. What is cloud computing and its examples?

Cloud computing provides IT resources through internet-based services. Examples include Gmail, Microsoft Azure, Amazon Web Services, and Netflix.

6. What is a good example of cloud computing?

A good example is Google Docs. Instead of installing a word processor on your computer, you can write documents and store them online using Google Docs, accessible from any device. 

7. What are the five examples of cloud computing?

  • Google Drive (Storage) 
  • Zoom (Communication) 
  • Salesforce (CRM) 
  • Netflix (Streaming Service) 
  • AWS EC2 (Infrastructure Service)


8. What is cloud computing with examples for beginners?

Think of cloud computing as renting space or tools on someone else’s computer. For example, instead of saving photos on your computer’s hard drive, you can store them on a service like iCloud.

9. What is virtualization in the cloud?

Virtualization is creating a virtual version of something, like a server or an operating system. In the cloud, it allows multiple virtual environments to run on a single physical machine.

10. What is virtualization computing?

Virtualization computing means creating virtual representations of physical computing resources. This allows one computer to act like many isolated systems.

11. What are the 3 types of virtualization?

1.Desktop Virtualization 

2.Server Virtualization 

3.Network Virtualization

12. What are the 4 general types of virtualization?

1.Data Virtualization

2.Desktop Virtualization 

3.Server Virtualization 

4.Operating System Virtualization

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