What is the cloud computing

 

Cloud computing is using technology via the internet, to compute resources, applications, data storage, development tools, networking capabilities, and more. Your information still lives on a computer but hosted at a remote secure data center and managed by the staff of the hosting company.  This company is a “cloud services provider” (or CSP).

Cloud computing assists your business with:

• Lower IT costs: 

• Improve responsiveness

• Easier scalability and cost-effectiveness

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Cloud Computing Services

SaaS (Software-as-a-Service), PaaS (Platform-as-a-Service) and  IaaS (Infrastructure-as-a-Service) common models of cloud services.

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SaaS (Software-as-a-Service)

SaaS is application software hosted in the cloud where users access through a web browser, a dedicated desktop client.  SaaS users usually subscribe monthly or annual to receive the service.

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PaaS (Platform-as-a-Service)

PaaS is an on-demand platform mainly used by developers. The cloud provider hosts the entire environment and provides the hardware, complete software stack, infrastructure, and even development tools—for running, developing, and managing applications.

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IaaS (Infrastructure-as-a-Service)

IaaS provides on-demand access to fundamental computing resources—physical and virtual servers, networking, and storage—over the internet on a pay-as-you-go basis. IaaS enables end users to scale and shrink resources on an as-needed basis, reducing the need for high, up-front capital expenditures or unnecessary on-premises or ‘owned’ infrastructure and for overbuying resources to accommodate periodic spikes in usage.  

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Cloud Security

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Security concerns have been a primary obstacle for many organizations considering cloud services. The maintenance of cloud security includes some of following security best practices:

• Shared responsibility for security

• Data encryption

• User identity and access management

• Collaborative management

• Security and compliance monitoring