What Is Cloud Computing

What Is Cloud Computing?

Cloud computing is a computing resource that is conveyed as a service over a network connection, such as the internet.

Relying on a pool of shared physical and virtual resources, cloud computing doesn’t depend on deploying personal hardware or software. Similar to ‘utility computing’, cloud computing allows users access to a multitude of computer resources instead of managing the equipment needed to generate it themselves.

Benefits

Scalability

To Match demand, resources can be increased or decreased when necessary.

Cost Effective

Users just pay for the resources used, this avoids inefficiency and alleviates the expense of unused capacity.

Economies Of Scale

Multiple services can be used through the same computing resource.

Reliability

Hosting across various servers means that individual system failures won’t affect the continuity of the service.

Flexibility

There are extensive choices of security and management variations with options that cater to most business needs.

Types of Cloud Computing

There are three integral deployment models of cloud computing, private cloud, public cloud and Hybrid cloud.

Private Cloud

Private cloud uses central services and infrastructure and is maintained on a private network that is accessible by only one client; this results in better levels of control and greater security. Users will need to purchase or rent cloud space and maintain the necessary software and hardware.

Public Cloud

With a public cloud, services and infrastructure are hosted by a cloud provider off-site and shared across their client base. The public cloud can be accessed via public networks like the internet and although cost-effective is more vulnerable than private cloud setups because of their higher levels of accessibility.

Hybrid Cloud

A combination of both public and private cloud elements, using the public cloud for non-sensitive operations and the private setup for mission-critical operations, the hybrid cloud allows companies to maximise their efficiencies and ensures an ideal cloud computing setup without paying more than necessary.

Models Of Cloud Computing

There are three models of cloud computing, these are:

Software as a Service (SaaS)

Platform as a Service (PaaS)

Infrastructure as a Service (IaaS)

Infrastructure as a Service (IaaS)

IaaS refers to the delivery of virtual computing resources as a service across a network connection such as servers, software, network equipment and data-centre space. It is often used for hosting websites, and when in-house infrastructure isn’t tasked with this, it is then free to manage the business. IaaS is also used to by companies that have the expertise to control their own IT requirements but lack the infrastructure.

Platform as a Service (PaaS)

PaaS provides flexible infrastructure and gives users the opportunity to develop their own solutions such as build new applications or even extend already existing ones. As well as being able to cherry-pick features the user isn’t burdened with the cost or difficulty of managing the hardware or software.

Software as a Service (SaaS)

Often referred to as ‘Software on Demand’, SaaS is easily accessible and offers rapid scalability, it is readily available and can be used via a subscription or payment made as per usage. Although it has some security risks due to the service being maintained by a provider and not ‘in-house’, it is arguably the most recognised and used models of cloud computing.

Blue Sky IT Consulting can help your business to reap the benefits of cloud computing. For further information or advice give our experts a call.

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