Write a story of any employee to explain Cloud Computing concept. Elaborate your story with suitable diagrams. Also explain its types with reference to internet
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Answer:
Cloud computing is a general term for anything that involves delivering hosted services over the internet. These services are divided into three main categories: infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS).
A cloud can be private or public. A public cloud sells services to anyone on the internet. A private cloud is a proprietary network or a data center that supplies hosted services to a limited number of people, with certain access and permissions settings. Private or public, the goal of cloud computing is to provide easy, scalable access to computing resources and IT services.
Cloud infrastructure involves the hardware and software components required for proper implementation of a cloud computing model. Cloud computing can also be thought of as utility computing, or on-demand computing.
The name cloud computing was inspired by the cloud symbol that's often used to represent the internet in flowcharts and diagrams.
Cloud computing characteristics
Some of the main benefits of cloud computing are:
Self-service provisioning: End users can spin up compute resources for almost any type of workload on demand. An end user can provision computing capabilities, such as server time and network storage, eliminating the traditional need for IT administrators to provision and manage compute resources.
Elasticity: Companies can freely scale up as computing needs increase, and scale down again as demands decrease. This eliminates the need for massive investments in local infrastructure, which may or may not remain active.
Pay per use: Compute resources are measured at a
Cloud computing boasts several attractive benefits for businesses and end users. Some of the main benefits of cloud computing are:
Cost savings: Using cloud infrastructure can costs, as organizations don't have to spend massive amounts of money buying and maintaining equipment. This reduces their capital expenditure costs – as they don't have to invest in hardware, facilities, utilities or building large data centers to accommodate their growing businesses. Additionally, companies don't need large IT teams to handle cloud data center operations because they can rely on the expertise of their cloud providers' teams. Cloud computing also cuts costs related to downtime. Since downtime rarely happens in cloud computing, companies don't have to spend time and money to fix any issues that may be related to downtime.
Mobility: Storing information in the cloud means that users can access it from anywhere with any device with just an internet connection. That means users don't have to carry around USB drives, an external hard drive or multiple CDs to access their data. Users can access corporate data via smartphones and other mobile devices, enabling remote employees to stay up to date with coworkers and customers. End users can easily process, store, retrieve and recover resources in the cloud. In addition, cloud vendors provide all the upgrades and updates automatically, saving time and effort.
Disaster recovery: All organizations worry about data loss. Storing data in the cloud guarantees that users can always access their data even if their devices, e.g., laptops or smartphones, are inoperable. With cloud-based services, organizations can quickly recover their data in the event of emergencies, such as natural disasters or power outages.
Types of cloud computing services
As mentioned previously, cloud computing can be separated into three general service categories:
Infrastructure as a service. IaaS providers, such as AWS, supply a virtual server instance and storage, as well as APIs that let users migrate workloads to a virtual machine (VM). Users have an allocated storage capacity and can start, stop, access and configure the VM and storage as desired. IaaS providers offer small, medium, large, extra-large and memory- or compute-optimized instances, in addition to customized instances, for various workload needs.
Platform as a service. In the PaaS model, cloud providers host development tools on their infrastructures. Users access these tools over the internet using APIs, web portals or gateway software. PaaS is used for general software development, and many PaaS providers host the software after it's developed. Common PaaS providers include Salesforce's Lightning Platform, AWS Elastic Beanstalk and Google App Engine.
Software as a service. SaaS is a distribution model that delivers software applications over the internet; these applications are often called web services. Users can access SaaS applications and services from any location using a computer or mobile device that has internet access. In the SaaS model, users gain access to application software and databases. One common example of a SaaS application is Microsoft Office 365 for productivity and email services.
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