Cloud Computing

Subject: Science and Technology

Context: According to the LinkedIn Global Skillset Survey, cloud computing is the most sought-after skill set today.

Concept:

It is estimated that cloud computing industry is set to grow from $371.4 billion in 2020 to $832.1 billion by 2025, at a 17.5 per cent CAG.
The rise in demand is because companies are seeking to build digital presence and remain alive during Covid-19 and longterm benefits of cloud service is attracting talents as well as companies.
It is the delivery of computing services including servers, storage, databases, networking, software, analytics, and intelligenceover the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.

Types of cloud

Public clouds are owned and operated by a third-party cloud service provider, which deliver their computing resources like servers and storage over the Internet. Ex- Nicrosoft Azure.
Private cloud refers to cloud computing resources used exclusively by a single business or organisation. A private cloud can be physically located on the company’s on-site datacenter.
Hybrid clouds combine public and private clouds, bound together by technology that allows data and applications to be shared between them giving business greater flexibility, more deployment options and helps optimise your existing infrastructure, security and compliance

Types of cloud services: IaaS, PaaS, serverless and SaaS

Infrastructure as a service (IaaS): Renting of IT infrastructure like servers and virtual machines (VMs), storage, networks, operating systems from a cloud provider on a pay-as-you-go basis
Platform as a service (PaaS): Platform as a service refers to cloud computing services that supply an on-demand environment for developing, testing, delivering and managing software applications.
Software as a service (SaaS): Software as a service is a method for delivering software applications over the Internet, on demand and typically on a subscription basis. Cloud providers host and manage the software application and underlying infrastructure and handle any maintenance
Serverless computing: building app functionality without spending time continually managing the servers and infrastructure required to do so. The cloud provider handles the setup, capacity planning and server management.