What is cloud?
Cloud Computing is a model for enabling ubiquitous convenient on demand network access to shared pool of configurable computing resources ( example networks, servers, storage applications and services) that can be rapidly provisioned and released with minimal management for service provider interaction.
In short, the cloud is the internet, and cloud computing is techs peaks that describes software and services that run through the Internet or an intranet rather than on private servers and hard drives.
How cloud could computing works?
Cloud Computing differs traditional IT hosting services in that the consumer (whether that's a business, organization or individual user) generally doesn't own the infrastructure needed to support the programs or applications they use.
Instead, those elements are on and operated by third party and the end- user pays only for the services they use. In the other words, cloud computing is an on-demand, utility - based model of computing.
Types of cloud computing
There are 3 main cloud computing development options : private, public and hybrid clouds.
Public
a public cloud is probably the most commonly understood cloud computing option. This is where all the services and supporting infrastructure are managed off-site over the internet and shared across multiple users..
A good example of a public cloud at the individual consumer level is a streaming service like Netflix or Hulu. User subscribe to the service through an individual account but access the same services across the platform through the Internet.
The advantage of using a public cloud is the increased efficiency and subsequent cost-effectiveness from shared resources. Public clouds are typically cheaper private and hybrid cloud solutions because the relay on Economics of scale. Users do not have to pay for services they are not using and do not have to worry about managing and maintaining the physical infrastructure.
Private
A private cloud provides IT services through the Internet or a private network to select users, rather than to the general public. Instead of having multiple tenants, like a public cloud does, a private cloud typically has only one tenant. All data is protected behind a firewall. This is a particular choice for many businesses who want the agility of the cloud with greater customization and security.
Private clouds can reside on site or offline. The distinguishing feature is the single, private tenant who maintains greater control over the IT services. private clouds are popular choices for organisations who have high priorities on security and compliance.
Hybrid
Hybrid cloud environment combine both private and public cloud elements to varying degrees. Despite operating independently the clouds in hybrid environment communicate over an encrypted connection and allow for the portability of data and applications.
This is an increasingly popular cloud solution because it allows organisations greater flexibility to meet their IT needs.
Benefits of using the cloud for your business
- Cost savings
- Reliability
- Mobility
Cloud Computing service models
Cloud solutions come in 3 primary models:
- infrastructure as a service(IaaS)
- Platform as a Service (PaaS)
- Software as a Service (Saas)
