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cloud computing

1. diagram

2. cloud storage

   • Cloud storage is a model of networked enterprise storage where data is stored in virtualized pools of storage which are generally hosted by third parties. Hosting companies operate large data centers, and people who require their data to be hosted buy or lease storage capacity

3. what it is?

   • the practice of using a network of remote servers hosted on the Internet to store, manage, and process data, rather than a local server or a personal computer.

4. disadvantages

   • Possible downtime. Cloud computing makes your small business dependent on the reliability of your Internet connection. When it's offline, you're offline. And even the most reliable cloud computing service providers suffer server outages now and again.
   • Security issues. How safe is your data? Cloud computing means Internet computing. So you should not be using cloud computing applications that involve using or storing data that you are not comfortable having on the Internet. That being said, established, reliable cloud computing vendors will have the latest, most sophisticated data security systems possible as they want your business and realize that data security is a big concern.
   • Cost. At first glance, a cloud computing application may appear to be a lot cheaper than a particular software solution installed and run in-house, but you need to be sure you're comparing apples and apples. Does the cloud application have all the features that the software does and if not, are the missing features important to you?
   • Inflexibility. Be careful when you're choosing a cloud computing vendor that you're not locking your business into using their proprietary applications or formats. You can't insert a document created in another application into a Google Docs spreadsheet, for instance. Also make sure that you can add and subtract cloud computing users as necessary as your business grows or contracts.
   • Lack of support. In These Issues Need to be Resolved Before Cloud Computing Becomes Ubiquitous, (OPEN Forum) Anita Campbell writes, "Customer service for Web apps leaves a lot to be desired -- All too many cloud-based apps make it difficult to get customer service promptly – or at all. Sending an email and hoping for a response within 48 hours is not an acceptable way for most of us to run a business".

5. example of websites

   • googlemail, microsoft, yahoo, google

6. different types

7. benefits

   • Achieve economies of scale – increase volume output or productivity with fewer people. Your cost per unit, project or product plummets
   • Streamline processes. Get more work done in less time with less people.
   • Reduce capital costs. There’s no need to spend big money on hardware, software or licensing fees.
   • Improve accessibility. You have access anytime, anywhere, making your life so much easier!

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