Pros and Cons of "Cloud Computing"

Advantages of Cloud Computing

We'll start with the many advantages offered by cloud computing. Here's what you get when you move into the cloud:

• Lower computer costs. You don't need a high-powered and high-priced computer to run cloud computing's web-based applications. Since applications run in the cloud, not on the desktop PC, your desktop PC doesn't need the processing power or hard disk space demanded by traditional desktop software. When you're using web-based applications, your PC can be less expensive, with a smaller hard disk, less memory, more efficient processor, and the like. In fact, your PC in this scenario doesn't even need a CD or DVD drive, as no software programs have to be loaded and no document files need to be saved.
• Improved performance. With fewer bloated programs hogging your computer's memory, you'll see better performance from your PC. Put simply, computers in a cloud computing system boot and run faster because they have fewer programs and processes loaded into memory.
• Reduced software costs. Instead of purchasing expensive software applications, you can get most of what you need for free. That's right—most cloud computing applications today, such as the Google Docs suite, are totally free. That's a lot better than paying $200+ for similar Microsoft Office software—which alone may be justification for switching to cloud applications.
• Instant software updates. Another software-related advantage to cloud computing is that you're no longer faced with choosing between obsolete software and high upgrade costs. When the app is web-based, updates happen automatically and are available the next time you log into the cloud. When you access a web-based application, you get the latest version—without needing to pay for or download an upgrade.

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How did "Cloud Computing" start and where will it go?

Much has been written about the technology aspects of cloud computing and its game-changing service characteristics. But focusing only on technology and service aspects of the cloud ignores the fact that cloud computing is in actuality more of a disruptive business model than just a combination of technology changes.

By changing the potential speed of IT services provisioning from weeks to hours and reducing the cost of investment through on-demand self-service, cloud computing promises to transform the competitive advantage a business can have. Companies large and small may be able to quickly jump-start new initiatives and enter new markets because cloud computing offers reductions in time and a low cost of entry, thus allowing them to leapfrog the competition.

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What is Cloud Computing?

Cloud computing refers to applications and services offered over the Internet. These services are offered from data centers all over the world, which collectively are referred to as the "cloud." This metaphor represents the intangible, yet universal nature of the Internet.