Cloud computing providers offer their services according to several fundamental models Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service (SaaS).
In the PaaS model, cloud providers deliver a computing platform typically including operating system, programming language execution environment, database, and web server. Application developers can develop and run their software solutions on a cloud platform without the cost and complexity of buying and managing the underlying hardware and software layers.
In the SaaS model, cloud providers install and operate application software in the cloud and cloud users access the software from cloud clients. Cloud users do not manage the cloud infrastructure and platform where the application runs.
Traditional NaaS services include flexible and extended VPN, and bandwidth on demand. NaaS concept materialization also includes the provision of a virtual network service by the owners of the network infrastructure to a third party (VNP – VNO).
It will be nice if I don't let you know Cloud computing as sweet as it sounds has got advantages and disadvantages. Here are some of them I can think of for now.
Lower computer costs:
You do not 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 does not need the processing power or hard disk space demanded by traditional desktop software.
When you are using web-based applications, your PC can be less expensive, with a smaller hard disk, less memory, more efficient processor.
Stored data might not be secure:
With cloud computing, all your data is stored on the cloud.
The questions is How secure is the cloud?
Can unauthorized users gain access to your confidential data?
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- January 31, 2014
- by Jane Doe
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