Cloud Computing for Beginners..,

What is Cloud Computing?

Cloud computing is the on-demand availability of computer system resources, especially data storage and computing power, without direct active management by the user. Large clouds often have functions distributed over multiple locations, each location being a data center.

How many types of Cloud?

We have three types of clouds in cloud computing. Those are Public Cloud, Private Cloud and Hybrid Cloud.

What is Public a Cloud?

Public cloud is an IT model where on-demand computing services and infrastructure are managed by a third-party provider and shared with multiple organizations using the public Internet. Public cloud service providers may offer cloud-based services such as infrastructure as a service (IaaS), platform as a service (PaaS), or software as a service (SaaS) to users for either a monthly or pay-per-use fee, eliminating the need for users to host these services on site in their own data center.

Public Cloud Service Providers:

Top Public cloud providers are AWS, Microsoft Azure and GCP.

What is Private a Cloud?

Private cloud is a type of cloud computing that delivers similar advantages to public cloud, including scalability and self-service, but through a proprietary architecture. A private cloud, also known as internal or corporate cloud, is dedicated to the needs and goals of a single organization whereas public clouds deliver services to multiple organizations.

Private Cloud Service Providers:

Top Private cloud providers are VMware Cloud, IBM Cloud and Citrix Cloud etc...,

What is Hybrid Cloud?

Hybrid cloud refers to a mixed computing, storage, and services environment made up of on-premises infrastructure, private cloud services, and a public cloud such as Amazon Web Services (AWS) or Microsoft Azure with orchestration among the various platforms. Using a combination of public clouds, on-premises computing, and private clouds in your data center means that you have a hybrid cloud infrastructure.

How many types of services are in the Cloud?

We have three types of services in cloud computing. Those are IAAS(Infrastructure as a Service), SAAS(Software as a Service) and PAAS(Platform as a Service).

Infrastructure as a Service(IAAS):

IaaS means a cloud service provider manages the infrastructure for you — the actual servers, network, virtualization, and data storage — through an internet connection. The user has access through an API or dashboard, and essentially rents the infrastructure. The user manages things like the operating system, apps, and middleware while the provider takes care of any hardware, networking, hard drives, data storage, and servers; and has the responsibility of taking care of outages, repairs, and hardware issues. This is the typical deployment model of cloud storage providers.

Platform as a Service(PAAS):

PaaS means the hardware and an application-software platform are provided and managed by an outside cloud service provider, but the user handles the apps running on top of the platform and the data the app relies on. Primarily for developers and programmers, PaaS gives users a shared cloud platform for application development and management (an important DevOps component) without having to build and maintain the infrastructure usually associated with the process.

Software as a Service(SAAS):

SaaS is a service that delivers a software application — which the cloud service provider manages — to its users. Typically, SaaS apps are web applications or mobile apps that users can access via a web browser. Software updates, bug fixes, and other general software maintenance are taken care of for the user, and they connect to the cloud applications via a dashboard or API. SaaS also eliminates the need to have an app installed locally on each individual user’s computer, allowing greater methods of group or team access to the software.

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