I read a great analogy about cloud computing recently. Think of the cloud as your electric company: You plug something into the wall and electricity flows.
You didn’t generate the electricity and you probably don’t know where it came from. All you care about is whether whatever you plugged into the wall works. Cloud computing works in much the same way. Through an Internet connection you can access whatever files, data or applications you’ve chosen to store in the cloud anytime, anywhere and on any device.How did cloud computing come about?The traditional way most companies deployed software is referred to as on premise. This means a company installed the software it wanted to run on computers it owned that were at its offices.
Because of the rise of the Internet in the 1990s, a new software deployment option called hosting evolved. This is when a company’s software physically resides at a third-party data center — the hosting site — where it is managed for the company by a technology service provider.
The company’s employees access the software over a network, typically the Internet. Each company accesses its own dedicated instance or copy of the software that is running at the remote data center.
Enter cloud computing. Aiming to combine the best characteristics of both on-premise and hosted options, the Software as a Service (SaaS)
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