What is Cloud Computing?
What is Cloud Computing? Cloud computing, also called Utility or On-demand Computing, is the distribution of services (technically referred to as the cloud services)—like databases, storage, servers, analytics, software, networking, and intelligence—across the Internet.
It offers faster innovation, adaptable sources, and economies of range. The title cloud computing was inspired by the cloud logo/symbol that is usually utilised to symbolise the Internet in graphics.
Types of Cloud Computing
A cloud can either be Public, Private or Hybrid.
Public cloud services are accessible to every user and are operated by 3rd party service providers. Microsoft Azure is an example of such a cloud.
A private cloud is a data centre or an exclusive interface that provides only to a limited user base, with specific settings and access. It is restricted to one or grouped individual base or organisation.
Hybrid clouds services are an amalgamation of public and private clouds. This technology allows applications and data to be shared between either platform. It engenders greater flexibility with higher deployment options, thereby helping in efficient optimisation.
Types of Cloud Services
These services are segregated into 3 prime categories: Platform as a service (PaaS), Infrastructure as a service (IaaS) and Software as a service (SaaS).
The types of Cloud Computing Services –
- Platform as a service (PaaS)
This refers to the services that provide an on-demand setting for generating, examining, producing and managing applications.
This makes it easier for developers to build a web or mobile app quickly. No worries about setting up or maintaining the foundational infrastructure.
- Infrastructure as a service (IaaS)
This is the most basic category. The user rents IT infrastructure—virtual machines (VMs) and servers, storage, interfaces—from a provider on a pay-as-you-go premise.
- Software as a service (SaaS)
This is a method for delivering applications for software over the Internet, typically on a subscription or else on-demand basis.
It enables the cloud providers to receive and execute the software application with underlying infrastructure and handle any maintenance.
Users attach to the application, usually with a web browser on their devices, on the Internet.
Benefits of Cloud Computing
Cloud computing is a transformation to a novel stance, from the traditional vision for IT resources. It shares a variety of benefits –
Reduced/ Eliminated Capital Expense: This helps in eliminating the capital expense of purchasing software and hardware or establishing and operating on-site datacenters—the server piles, the continuous electricity requirement necessary for power and cooling, a team of IT experts and more.
Global Scale: It encompasses the ability to diverge elastically. In cloud speak, that means giving the right volume of resources, like—more or less computing power, bandwidth, storage—exactly when required and from the right geographic location.
Efficient Pace: Most cloud services are provided self-service and on-demand, thus enabling even a large amount of computing resources to be accoutred in minutes, giving businesses flexibility and alleviating the pressure off capacity planning.
Enhanced Productivity: On-site data centres require a lot of “stacking and racking”—hardware installation, software upload, and more.
Cloud computing eliminates the need for most of these tasks, so IT teams can spend time on achieving more important business goals.
Reliable and Secure: It makes data reserves and strategizes reports, thus making disaster recovery and business continuity easier and less expensive. The data can be copied at various sites on the provider’s network.
A variety of technology and controls are also used to protect the data and infrastructure of the user base from potential threats.
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