What Is Cloud Computing? A Complete Guide For Beginners

by Noah Jackson

Cloud computing is a method of accessing data and software online rather than building, managing, and maintaining them on your own hard drive or servers. …

Cloud computing is a method of accessing data and software online rather than building, managing, and maintaining them on your own hard drive or servers. It’s quick, efficient, and safe. Despite the fact that many of us have been using the cloud for years, the question “What is cloud computing?” still lingers across many businesses.

This guide can help you whether you want to better understand it personally or you want to help your company use it more effectively. You’ll discover all you need to know about cloud computing here. Let’s dive into it!

What is cloud computing?

Simply explained, cloud computing is a method of accessing services through the internet rather than through your computer. The cloud allows you to access software, data, and development tools from nearly any location. You can get the same information whether you’re working on your phone on a packed train in NYC or on your laptop at a hotel in Hong Kong because it’s all online.

Who Uses Cloud Computing?

Who Uses Cloud Computing?

The quick answer is: everyone. The cloud is everywhere, from your phone and automobile to your smart watch and your favorite meal delivery service.

However, cloud computing is particularly useful for enterprises. Organizations of many sizes and industries currently employ cloud computing because it provides them with flexibility and scalability. It is used by businesses for everyday operations such as data security, software development, data analytics, virtual desktops, server virtualization, disaster recovery, and customer-facing apps.

How Does Cloud Computing Work?

In a nutshell, cloud computing is a three-piece puzzle:

  1. Cloud service providers keep data and applications on physical equipment in data centers.
  2. Users have access to such assets.
  3. The internet immediately connects suppliers and users across enormous distances.

Although the elements are basic, the technology that connects them is complicated. Consider how things used to function before the cloud: Companies’ IT departments were in charge of their own onsite data centers, which necessitated frequent hardware updates, exorbitant energy expenditures, and vast quantities of real estate. It was costly, inconvenient, and inefficient.

But that is no longer required. Companies that used to run their own data centers no longer have to worry about infrastructure provisioning, securing, growing, maintaining, and upgrading. Instead of focusing on technological logistics, they just focus on creating exceptional experiences for their clients. This fundamentally alters and streamlines how organizations handle their IT resources.

Many cloud companies, for example, provide subscription-based services. Customers may access all of the computing resources they require in exchange for a monthly charge. That means they don’t have to acquire software licensing, replace obsolete servers, buy new computers when storage runs out, or install software upgrades to stay up with increasing security risks. All of this is handled by the seller.

In this sense, cloud computing is analogous to renting a car. The user has access to the vehicle, but it is the owner’s responsibility to do repairs and normal maintenance, as well as to replace old automobiles with new ones as they age. And if the user ever wants to upgrade to accommodate additional business, it’s as simple as signing a new leasing agreement and exchanging the equipment.

6 Benefits of Cloud Computing

6 Benefits of Cloud Computing

Now that you understand cloud computing it works, it’s easy to see that it has many advantages. The most important benefits of cloud computing  are:


Cloud computing makes storing, accessing, and sharing information fast and easy.


Employees can operate safely and securely from anywhere because information flows across locations and devices. This increases their productivity, collaboration, and work satisfaction.


The concept of “multi-tenancy” is central to cloud computing. This indicates that a single cloud service provider has multiple clients that are sharing the same computer resources. It’s similar to an apartment complex: Despite the fact that inhabitants share facilities and infrastructure, as well as shared walls, vents, and plumbing, everyone is allowed to design their individual apartment however they see appropriate.


Accounting benefits from cloud computing since it allows IT equipment to be classed as operational rather than capital expenditure. This is typically beneficial for the health of the firm because operating costs are tax-deductible and pay-as-you-go. This equates to greater flexibility, fewer waste, and, in many cases, a higher ROI.


Cloud service providers are always refining their architecture to provide the greatest levels of performance and availability. Meanwhile, the third parties that host these services keep them up to date and give simple access to customer assistance. This dedication to constant development makes them reliable in terms of excellence standards.


Cloud companies often allow clients to scale up or scale down computer capacity as needed. As a result, cloud computing may grow up or down in tandem with your organization. You may change the amount of bandwidth, users, and services available, as well as add new service providers. Furthermore, many cloud service providers will automate this scalability on your behalf, allowing teams to focus on customer experience and less on capacity planning.

Cloud Computing Deployment Models

Cloud Computing Deployment Models

If you’re asking what type of cloud computing will be best suited to your business when you migrate to the cloud, you have several options:

Public cloud 

Third-party cloud companies own and administer public clouds for public usage. They own all of the cloud’s hardware, software, and infrastructure. Customers own the data and apps stored in the cloud.

Private cloud 

Private clouds (also known as corporate clouds, or internal clouds, or on-premise clouds) can be hosted by organizations ranging from businesses to nonprofits to schools. When they do, they own the underlying infrastructure of the cloud and can host it either locally or remotely.

Hybrid cloud 

Hybrid clouds combine private and public clouds to provide the best of both worlds. Private clouds are often used for essential or sensitive services, whereas public clouds are used to meet spikes in computing demand. Data and applications frequently flow in unison between them. This increases flexibility without requiring enterprises to sacrifice existing infrastructure, compliance, and security.


A multicloud exists when an organization uses multiple clouds from different suppliers. This has a lot of potential benefits. When you use various suppliers, for example, you may mix and match features and functionality. If you have a very critical project, for example, you may host it on a cloud with enhanced protection.

Perhaps you are a multinational corporation. Teams in Asia and North America can choose from a variety of cloud providers based on who provides the best service in their region or who is most experienced with regulatory compliance..

Types of Cloud Computing Services 

Types of Cloud Computing Services 

Your company must choose not just what sort of cloud it wants to deploy, but also which cloud computing services it wants to use.

There are three primary options:

  • Software as a service (SaaS) (SaaS)
  • Infrastructure as a Service (IaaS) (IaaS)
  • As a service platform (PaaS)

Software as a Service (SaaS)

The most prevalent sort of cloud computing is software as a service (SaaS). When customers traditionally had to download and install software on their PCs, SaaS offers entire, user-ready programs via the internet, saving technical personnel a significant amount of time. The vendor is solely responsible for maintenance and troubleshooting. Software applications often perform specified activities, are simple to use, and frequently include extensive customer support.

Infrastructure as a Service (IaaS)

Infrastructure as a service (IaaS) provides a flexible approach to computing. It assumes you already have some basic IT infrastructure in place and allows you to supplement it as needed with various building components.

This method is best suited for enterprises who have their own operating systems yet require tools to sustain those systems throughout time. Connecting to servers, hardware,  firewalls, and other infrastructure allows businesses to create at scale while using pre-built components. IaaS may act as a scaffolding for individual projects with distinct IT requirements.

For example, a company creating new software may use IaaS to build a testing environment before releasing it. In contrast, an ecommerce business may use IaaS to host its website. In such a case, IaaS is appropriate since its infrastructure can swiftly grow in response to unforeseen traffic surges, such as those experienced during a Christmas sale.

Platform as a Service (PaaS)

Platform as a service (PaaS) offers the foundation for software development. Development tools, code libraries, servers, coding environments, and preconfigured app components are all included. The vendor addresses back-end concerns like security, infrastructure, and data integration with PaaS. As a result, customers can concentrate on developing, hosting, and testing apps, which they can do more quickly and at a lower cost.

Uses of Cloud Computing

Uses of Cloud Computing

Even if you’re not aware of it, you’re undoubtedly using cloud computing right now. If you use an online service to send email, edit documents, view movies or TV, listen to music, play games, or save images and other information, cloud computing is most certainly behind the scenes. The first cloud computing services were launched less than a decade ago, yet a wide range of organizations—from small startups to major enterprises, government agencies to non-profits—are now adopting the technology for a number of reasons.

Here are a few examples of what’s possible today with cloud services from a cloud provider:

  • Create apps that are cloud-native. Build, deploy, and scale web, mobile, and API apps in record time. Use cloud-native technologies and methodologies including containers, Kubernetes, microservices architecture, API-driven communication, and DevOps.
  • Application testing and development. Reduce application development costs and time by leveraging cloud infrastructures that can be simply scaled up and down.
  • Data storage, backup, and recovery. Protect your data at a lower cost and on a larger scale by sending it over the Internet to an offsite cloud storage solution that is accessible from anywhere.
  • Examine the data. Unify your data on the cloud across your teams, divisions, and geographies. Then, using cloud technologies such as machine learning and artificial intelligence, you may unearth insights that will help you make better decisions.
  • Audio and video can be streamed. With high-definition video and audio that is distributed globally, you can connect with your audience anywhere, at any time, and on any device.
  • Develop intelligence. Use intelligent models to assist in engaging consumers and providing important insights from data acquired.
  • Provide software on demand. On-demand software, also known as software as a service (SaaS), enables you to provide the most recent software versions and updates to consumers at any time and from any location.

Examples of Cloud Computing In Life

Cloud computing is getting increasingly popular as technology advances. And, in the process, it is totally altering modern life – both at home and at work.

Cloud computing at home

You probably use cloud computing without even recognizing it in your daily life. Rather than storing hard copies of movies and music in drawers or on shelves, you may now access them electronically via cloud-based streaming services such as Netflix and Spotify. And what about the photographs and posts you share on social media? Social networks like Facebook and Twitter also store this data remotely on the cloud.

Cloud computing at work

You used to save data on your hard disk at work and frequently lost them due to system problems and power shortages. You’re storing them on the cloud now, which saves changes in real time and allows you to access them from anywhere.

Your company may also be employing cloud-based customer relationship management (CRM) software, which makes it simple to tailor customer conversations, manage leads, and fine-tune marketing activities across departments. Alternatively, it might leverage cloud-based solutions for human resources, payroll, accounting, and logistics. Cloud computing can help with better security and simplified data entry, as well as time-saving automation, in these and numerous other corporate use cases.

Final words

While cloud computing can bring numerous benefits, such as improved business operations and cost savings, any company that operates in the cloud should carefully consider service providers, security concerns, and ongoing process challenges in order to provide an efficient and secure experience for their team and customers. 

If your company doesn’t have the expertise to execute your cloud migration project in-house, it’s best to find a good cloud migration service provider to help you. 

CMC Global is among the top three cloud migration services providers in Vietnam. We operate a large certified team of cloud engineers specializing in Amazon AWS, Microsoft Azure, and Google Cloud who are able to migrate your legacy assets to the cloud in the most cost-effective way and in the least amount of time. 

For further information, fill out the form below, and our technical team will get in touch shortly to advise!