Cloud Computing

1. Big Data refers to data that is too complex to handle with typical data-processing algorithims - Wikipedia

2. Cloud computing offers services such as servers, storage and networking over the internet, to be available at all time without direct management from the user. - Azure, Wikipedia

3. An amalgation of several traditional technologies

4. There are three major cloud service models: software as a service (SaaS), infrastructure as a service (IaaS) and platform as a service (PaaS).- TechTarget

5. They reduce overhead expenditures on testing, integration, and maintenance, shorten time to release new features, scale the processes up and down according to needs and increase the flexibility of the system(s) with the help of sophisticated solutions that cloud providers are steadily developing

6. The business/economic model is very simple: it’s leasing. essentially the same as a company that rents cars, for example. They distribute the cost of the car among many customers, providing basic services like car maintenance and insurance. They make the cars available for rent by the day(or by the hour).

For the customer, cloud services are based on a few simple principles:

Metered pricing -Pay for what you use

On demand - available immediately. Can be turned ‘on’ or ‘off’ quickly

Operational Expense - instead of the CapEx that would represent a purchase. From an accounting perspective, it hits the books immediately

Self service - a customer can consume services on its own

Multi-tenancy/resource pooling - the service is shared with other customers

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