Cloud computing is a method of providing a set of shared computing resources that includes applications, computing, storage, networking, development, and deployment platforms as well as business processes.
Cloud computing turns traditional siloed computing assets into shared pools of resources that are based on an underlying Internet foundation.
Clouds come in different versions, depending on your needs.
There are two primary deployment models of cloud: public and private.
Most organizations use a combination of private computing resources
(data centers and private clouds) and public services as a hybrid environment.
The cloud doesn’t exist in isolation to other corporate IT investments.
The reality is that most companies use a combination of public and private cloud services in conjunction with their data center. Companies use different methods, depending on their business requirements to link and integrate these services.
The way you construct your hybrid computing environment is determined by the complexity of the workloads and how you want to optimize the performance of those workloads to support your constituents.
A company with a private cloud may choose to combine some public services for capabilities that are commodities with private services based on the ability to deliver fast innovation to their ecosystem.
For example, companies are increasingly discovering that it’s practical to pay a per-user, per-year price for customer relationship management (CRM) and leave the day-to-day management to a trusted vendor.
But many companies also want to keep control over some of their most sensitive data. Therefore, they may choose to keep data about prospects on a public cloud. However, after those prospects become customers, the companies may begin storing that data on their own premises in their own servers, which is the hybrid cloud model.
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