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What Is Cloud Computing

Cloud computing is the distribution of computing services through the Internet (the cloud), including servers, storage, databases, networking, software, analytics, and intelligence, to provide faster innovation, more flexible resources, and economies of scale. You usually only pay for the cloud services you use, which helps you cut costs, run your infrastructure more efficiently, and scale as your business grows. Instead of buying, owning, and maintaining physical data centers and servers, you can access technology services, such as computing power, storage, and databases, on an as-needed basis from a cloud provider like Amazon Web Services (AWS).


Cloud computing means storing and accessing the data and programs on remote servers that are hosted on the internet instead of the computer’s hard drive or local server. The concept of Cloud computing dates back to the 1950’s when large-scale mainframes were made available to schools and corporations for the processing of their data. The mainframe’s colossal hardware infrastructure was installed in what could be called a “server room”. Due to huge sizes of these main frame computers and their high costs of Purchasing and maintenance organizations were forced to purchase fewer machines and implement “time sharing” schedules so that their (ROI) return on investment was great as possible. Through time-sharing several users could access a mainframe computer from connected stations that carried no processing power of their own. In the mid-1960s, a scientist named J.C.R. Licklider came up with an idea for an interconnected system of computers.

In 1969, Licklider’s revolutionary idea helped Bob Taylor and Larry Roberts develop what was called ARPANET (Advanced Research Projects Agency Network). ARPARNET was the first network that allowed digital sources to be shared among computers that were not in the same physical location. Licklider also envisioned a world where everyone would be connected; to have the ability to access specific programs and data, regardless of where the access point might be located. Licklider also envisioned a world where everyone would be connected; to have the ability to access specific programs and data, regardless of where the access point might be located. This is what is known popularly today as cloud computing.

As technology advanced, in the 1970’s IBM released an operating system called Virtual Machine which permitted admins on its System/370 mainframe systems to have multiple virtual systems on a single physical node. Once it started to spread, cloud computing caught on quickly and just kept growing. Cloud computing is creating new opportunities, both for businesses and people interested in working in the IT field. Cloud computing allows businesses to have the flexibility and efficiency to meet new and growing demands as it is easily maintainable and reduces the costs of hardware purchases . It provides the infrastructure, software, and platforms necessary for success in today’s business landscape, no matter where they’re needed.

Who Uses Cloud Services?

There are several well-known organizations across the world that have already migrated to the cloud environment. Some of the examples include:

  • Pinterest

Uses the AWS cloud environment to manage multiple petabytes of data that are generated by its users every day.

  • Spotify Uses the AWS cloud environment to store its vast repository of songs.

  • Netflix One of the largest video streaming services, it uses AWS to allow users to stream shows from anywhere in the world.

  • Expedia Uses AWS cloud services to accommodate a highly scalable infrastructure.

Benefits Of Cloud Computing

  • Agility: Cloud give you the ability to quickly develop, test, and launch applications in a cloud based environment. You can deploy technology services in a matter of minutes, and get from idea to implementation several orders of magnitude faster than before.

  • Scalability and flexibility: Cloud computing gives your business more flexibility. You can quickly scale resources and storage up to meet business demands without having to invest in physical infrastructure.

Companies don’t need to pay for or build the infrastructure needed to support their highest load levels. Likewise, they can quickly scale down if resources aren’t being used.

  • Security: Data security is a major concern for businesses today. Cloud vendors provide advanced security features like authentication, access management, data encryption, etc., to ensure sensitive data in the cloud is securely handled and stored.

  • Increased collaboration: Cloud applications allow businesses to seamlessly communicate and securely access and share information, making collaboration simple and hassle-free. Cloud computing empowers multiple users to edit documents or work on files simultaneously and in a transparent manner.

Types of cloud computing

The three main types of cloud computing include Infrastructure as a Service, Platform as a Service, and Software as a Service. Each type of cloud computing provides different levels of control, flexibility, and management so that you can select the right set of services for your needs.

  • Infrastructure as a Service (IaaS)

  • Platform as a Service (PaaS)

  • Software as a Service (SaaS)

Infrastructure-as-a-Service (IaaS)

IaaS is a type of cloud computing service where cloud providers use the internet to offer and administer virtualized computing equipment. Businesses can get necessary resources, such as operating systems, networking, storage space, development tools, etc., on demand rather than building their own internal IT infrastructure.

Platform-as-a-Service (PaaS)

PaaS allows businesses to concentrate on the development, deployment, and management of software applications and services without having to worry about the underlying infrastructure since cloud providers do the heavy lifting. With PaaS, developers and programmers gain access to not only IT infrastructure but also application/software platforms and solution stacks.

Software as a Service (SaaS)

You can get a full product through SaaS that is operated and controlled by the service provider. Most often, when individuals mention SaaS, they're talking about end-user applications (such as web-based email). You don't need to consider how the service is handled or the underlying infrastructure is maintained while using a SaaS provider. You only need to consider how you plan to use that specific software.

How does cloud computing work?

Cloud computing is the delivery of computing resources, such as IT infrastructure or data centers 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. One major benefit of using cloud computing services is that companies pay only for the resources they use.

The procedures involved in cloud computing can be separated into frontend and backend to help in understanding its technological components. Users can use a cloud computing application or an internet browser to access data and programs that are stored in the cloud thanks to the frontend component. Servers, computers, and databases make up the backend, which houses the data storage.

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