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Cloud Computing

Cloud is used for network diagram represent internet, results of applications and services move into internet cloud, represent cloud computing. The device uses different types of services and applications being delivered on the internet and does not require any special application for it.

Cloud computing provides shared Infrastructure —various users use the cloud infrastructure can access visualized software models, sharing physical services, storage and networking, and also automation dynamic scaling to maintain top-level security during the request of necessary services. Users access all types of applications on a wide range of devices using standards-based APIs, they get reports and bills for services whatever is used during the time period.

Cloud-Computing Segments

The three essential cloud services are usually regarded as:

Software as a Service (SaaS)

Software as a Service (SaaS) is the model in which an application is hosted in the cloud, users able to access it through the internet. Hosting service can change but customers don’t have the rights to maintain and support software.

  • The distribution model provides software applications over the web, deployable using any Internet-enabled devices like smartphones or Computers.
  • Examples: VLC media player for accessing media and watching videos online

Platform as a Service (PaaS)

Consumers purchase access services include application design, development, testing, deployment, web service integration, database integration, security, storage, and hosting. Operating System and Network Access are not managed by the users.

  • Provider host development tools on its infrastructure which customers deploy on cyberspace with web portals, APIs, and gateway software.
  • The model developed for general software development
  • Providers include: AWS Elastic, AWS Elastic Beanstalk, Salesforce,, & Google

Hardware as a Service (HaaS)

HaaS is sometimes also called Infrastructure as a Service (IaaS) —Users allow to manage the operating systems, applications, storage, and network connectivity but restrict to control the cloud infrastructure. The service provider rents secured storage capacity (server space), virtual server instances (Compute-optimized or normal-customized), APIs to move workloads to a VM, Network equipment, Memory, CPU cycles, according to need the infrastructure can be scaled up and down and bill based upon resources consumed.

  • Users can access, configure and stop the storage and VM as desired

Iaas Providers: AWS

Features & Benefits

  • Cost: Provider bill on hour or monthly basis
  • Elasticity: designate any quality work. Scale resources on demand, thus reducing the exigency to invest massively in local infrastructure.
  • Fully-Managed: The provider manages the services
  • Easy access to IT services and computing resources
  • Self-service Provisioning: A customer can provision major essential computing resources without the need for an IT admin.
  • Pay per use: Pay only for the resources consumed.
  • Workload resilience: Redundant resources ensures important workloads remain active across many regions globally.
  • Migration flexibility: Move workloads to various cloud servers or platforms.

Deployment Models

The four primary service models being deployed. They differ depending on requirements; each has its own distinct differences. The services are offered according to users in particular ways-

Private Cloud

It is for a specific organization that may be operated in-house or a third party place.

  • Datacenter businesses provide cloud service to internal consumers
  • Security and control peculiar to local data center
  • The most common technologies deployed include: Open Stack and VMWare

Community Cloud — Number of organizations shared infrastructure for the same purpose, operate from an in-house or third-party place. Expenditures are distributed in companies this help in saving expenses.

Public Cloud

Cloud service providers offer a consumer to develop and deploy service in the cloud, infrastructure is available on a commercial basis for less money.

  • Third-party provider
  • Users pay for bandwidth, storage, CPU cycle over a certain period
  • Security: The provider assures safeguarded environment to businesses or organization which operate and thrive with copious isolation between existing logical compute resources. The data encryption technology and identity and access management tools are deployed for security to prevent data theft, outage, or loss.

Companies dominating the public cloud-computing includes:

Hybrid Cloud

The combination of private and public clouds or many other clouds to retain data and offer services, also allow data or applications to be transferred from one cloud to another.

  • An Automated, Unified & Scalable Environment: It's a union of on-premise private cloud and public cloud services with full automation and orchestration between the two.
  • Customers can use a private cloud for a mission-critical offload or sensitive works and a public cloud to spikes in demand for workload bursts.


The benefits of cloud Hosting:-

Saving Money — It requires fewer in-house IT resources that help companies to reduce their expenses.

Moveable Access — Access infrastructure from anywhere increased productivity.

Maintenance — It reduces maintenance by providing access through APIs that do not require application installations onto PCs.

Reliable — Support business and disaster recovery.


Some are challenges in the cloud services that can be resolved with due care and attention in the planning.

Security — Storing the information internal to the organization but allowing it to be used in the cloud and monitored by the cloud service providers. These issues are generally alleged.

Regular involvement — The cloud is for the public cannot remain stable, User continuously grows as per the requirements for interfaces, networking, and storage.

No norm —Open Cloud Computing Interface has to resolve the issue and the Open Cloud Consortium is working on cloud computing standards and practices. These groups should be mature, but it is not known whether they will address the needs of the people deploying the services.

Permission — US data protection is different and can vary from state to state. It typically happens in Hybrid cloud deployment with one cloud storing the data internally and the other to the different state or country organization.

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