public cloud computing services
“The agility, cost savings and fast response times of public cloud services can afford financial enterprises huge business opportunities”,says Stephen Schmidt, vice-president and chief information security officer of Amazon Web Services (AWS).As is becoming more and more known to us,public cloud computing services promises to play an important part in our society.
A cloud is called a "public cloud" when the services are rendered over a network that is open for public use. A public cloud is a set of computers and computer network resources based on the standard cloud computing model, in which a service provider makes resources, such as ...view middle of the document...
This very nature of public clouds offers various advantages such as better ROI and faster time to market, while also raising concerns about lack of visibility, security, reliability, etc. Public clouds are well suited to meet the collaborative needs of today’s global workforce distributed across different geographies and time zones.And a public cloud is the availability of IT resources, like compute, storage, development platforms, applications, etc., as service over the internet and which can be provisioned on demand using a self-service portal. Public clouds offer rapid elasticity and seemingly infinite scalability with an ability to consume resources on a pay-per-use basis. Typically public clouds are operated and managed at data centers belonging to service providers and shared by multiple customers. Such a shared model helps reduce vendor costs, which manifests itself in better cloud economics. However, there is also less visibility and control in a public cloud than a private cloud because the underlying infrastructure is owned by the service provider.The degree of visibility and control depends on the specific public cloud delivery model.
As has been mentioned,What public cloud computing can provide for us is very obvious.The very fact that public cloud services are offered by third-party providers with an ability to scale big offers some unique advantages that are otherwise not available in private clouds. The use of public cloud services shifts the responsibility of managing complex IT, which is not the core business of many companies, to a third-party provider, thereby, offering some benefits that cannot be realized either in traditional infrastructure or private clouds.
Firstly,Public clouds usually work out cheaper than buying the dedicated hardware for a private cloud to handle the apps and data, which also needs managing and updating - creating even more costs.The servers and other hardware in a public cloud are hosted off an organization's premises, and enable users to rent server and computing capacity in a scalable "pay-as-you-go" way in response to business needs.In addition,there is easy and inexpensive set-up and no wasted resources because hardware, application and bandwidth costs are covered by the provider and you just need to pay for what you use.
Secondly,by delivering such economies of scale, public cloud systems are suitable for organizations needing temporary added data capacity at peak times or for special ad hoc projects. They can also be used to host basic apps such as email.Companies using the Microsoft Office 365 or Google Apps email and desktop productivity suites, for instance, are using a public cloud service. The end users of such services can access apps from any location where they have an internet connection, so the public cloud makes remote and flexible working very easy indeed.Public cloud services are also popular in the CRM, ERP, HR, social media management, and data storage and data...