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A Look Behind the Curtain (Cloud Computing Tutorial 2)

A Look Behind the Curtain (Cloud Computing Tutorial 2)

Cloud Computing, Cloud Tutorial2 comments

This is the second of an evolving multi-part tutorial series on cloud computing.  To start at the beginning, click here.

In my last post I discussed what the cloud is in some pretty simple terms.  You know, how I actually explained it to my Mom.  Of course, this meant that I left out of lot of detail on what happens to make the cloud actually work.  Today we’ll delve a little deeper and explore some of the terms and technologies behind the curtain.

As I’ve already written, the cloud can be broken into three pretty big areas: Software-as-a-Service (SaaS), Platform-as-a-Service (PaaS), and Infrastructure-as-a-Service (SaaS).  Big words, easily understandable – if you don’t know what these mean, read my last post for a simple explanation.

Software becomes even softer

Let’s start with Software-as-a-Service.  The programs that run on your computer are software – things like Microsoft Word, Quicken, even your browser.  You’re probably used to installing software, generally by buying it on CD or downloading from a Web site.  The cloud lets software become, well, softer - it no longer has to be on your computer.

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