What is cloud computing in English?

What is cloud computing in English?


Cloud computing is the delivery of computing services including servers, storage, databases, networking, software, analytics, and intelligence over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale.

Top 7 Benefits of Cloud computing 

  1. Cost
  2. Global Scale
  3. Speed
  4. Productivity
  5. Security
  6. Performance
  7. Reliability
* Cost :- Cloud computing eliminates the capital expense of buying hardware and software and setting up and running on-site data centers, the racks of servers, the round-the-clock electricity for power and cooling, the IT experts for managing the infrastructure. It adds up fast.

* Global Scale :- The benefits of cloud computing services include the ability to scale elastically. In cloud speak, that means delivering the right amount of IT resources.
for example, more or less computing power, storage, bandwidth right when it is needed and from the right geographic location.

*Speed :- Most cloud computing services are provided self service and on demand, so even vast amounts of computing resources can be provisioned in minutes, typically with just a few mouse clicks, giving businesses a lot of flexibility and taking the pressure off capacity planning.

* Productivity :- On-site data centers typically require a lot of “racking and stacking” hardware setup, software patching, and other time-consuming IT management chores. Cloud computing removes the need for many of these tasks, so IT teams can spend time on achieving more important business goals.


* Security :- Many cloud providers offer a broad set of policies, technologies and controls that strengthen your security posture overall, helping protect your data, apps and infrastructure from potential threats.

* Performance :- The biggest cloud computing services run on a worldwide network of secure data centers, which are regularly upgraded to the latest generation of fast and efficient computing hardware.

* Reliability :- Cloud computing makes data backup, disaster recovery and business continuity easier and less expensive because data can be mirrored at multiple redundant sites on the cloud provider’s network.

Types of Cloud Computing

There are basically four types of Cloud Computing
  1. Private Clouds
  2. Public Clouds
  3. Hybrid Clouds
  4. Multi clouds
*Private Clouds 

  • Private clouds are loosely defined as cloud environments solely dedicated to a single end user or group, where the environment usually runs behind that user or group's firewall. All clouds become private clouds when the underlying IT infrastructure is dedicated to a single customer with completely isolated access.
  • A 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 data center. Some companies also pay third-party service providers to host their private cloud. A private cloud is one in which the services and infrastructure are maintained on a private network.
  • In addition, private clouds deliver a higher level of security and privacy through both company firewalls and internal hosting to ensure operations and sensitive data are not accessible to third-party providers. 
  • Private clouds can also be combined with public clouds to create a hybrid cloud, allowing the business to take advantage of cloud bursting to free up more space and scale computing services to the public cloud when computing demand increases.


* Public Clouds

  • Public clouds are cloud environments typically created from IT infrastructure not owned by the end user. Some of the largest public cloud providers include Alibaba Cloud, Amazon Web Services (AWS), Google Cloud, IBM Cloud, and Microsoft Azure.
  • Public clouds are owned and operated by a third-party cloud service providers, which deliver their computing resources like servers and storage over the Internet.
  • With a public cloud, all hardware, software and other supporting infrastructure is owned and managed by the cloud provider. You access these services and manage your account using a web browser.
  • Microsoft Azure is an example of a public cloud.
* Hybrid Clouds

  • A hybrid cloud is a seemingly single IT environment created from multiple environments connected through local area networks (LAN's), wide area networks (WAN's), virtual private networks (VPNs), and/or APIs.
  • Hybrid clouds combine public and private clouds, bound together by technology that allows data and applications to be shared between them. 
  • A hybrid cloud sometimes called a cloud hybrid is a computing environment that combines an on-premises data center (also called a private cloud) with a public cloud, allowing data and applications to be shared between them. Some people define hybrid cloud to include “multi cloud” configurations where an organization uses more than one public cloud in addition to their on-premises data center.

For example, a hybrid cloud may need to include:

  • At least one private cloud and at least one public cloud
  • Two or more private clouds
  • Two or more public clouds
  • A bare-metal or virtual environment connected to at least one public cloud or private cloud

* Multi Clouds

  • Multi clouds are a cloud approach made up of more than 1 cloud service, from more than 1 cloud vendor public or private. All hybrid clouds are multi clouds, but not all multi clouds are hybrid clouds. Multi clouds become hybrid clouds when multiple clouds are connected by some form of integration or orchestration.
  • A multi cloud environment might exist on purpose (to better control sensitive data or as redundant storage space for improved disaster recovery) or by accident (usually the result of shadow IT). Either way, having multiple clouds is becoming more common across enterprises that seek to improve security and performance through an expanded portfolio of environments.

What is Cloud Service & it's Types?

Cloud services are infrastructure, platforms, or software that are hosted by third-party providers and made available to users through the internet.

Types of Cloud Services

There are mainly 3 Types of cloud services
  1. IaaS
  2. PaaS
  3. SaaS
* IaaS :- IaaS means a cloud service provider manages the infrastructure for you the actual servers, network, virtualization, and data storage through an internet connection. This is the typical deployment model of cloud storage providers.

* PaaS :- Platform as a service refers to cloud computing services that supply an on-demand environment for developing, testing, delivering and managing software applications. PaaS is designed to make it easier for developers to quickly create web or mobile apps, without worrying about setting up or managing the underlying infrastructure of servers, storage, network and databases needed for development.

* 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.