Abstract:
Cloud computing is setting off great changes in the IT industry. There are more and more researches on cloud computing. And this paper focuses on cloud computing too. At the beginning this paper describes the characteristics and definitions of cloud computing, and then introduced its services patterns (including SaaS, PaaS and IaaS) and deployment patterns(including public cloud, private cloud and hybrid cloud), at the end lists the cloud security challenges that cloud computing faces.
I. INTRODUCTION
Cloud computing is a brand-new computing model which is based on distributed computing, parallel processing, virtualization and grid computing and is the commercial implementation of the concepts above. Since Eric Schmidt, the CEO of Google, first openly used the concept of "cloud computing", cloud computing have swept the Internet and triggered a global research and development boom. Now cloud computing is in a period of rapid development, so it is obvious that new contents and features continue to emerge. Foreign large companies such as Amazon, Google, IBM, Microsoft and Yahoo are pioneers in cloud computing. Many other companies like Salesforce, Facebook, Y outube, Myspace also make a success in cloud computing.
V. CONCLUSION
As a new technology is expected to significantly reduce the cost of existing technologies, cloud computing is the development trend of IT industry. For information security, there are both favorable factors and negative factors brought by cloud computing. The final effect depends on whether we can develop its strengths and avoid its disadvantages. Only in this way, the cloud can become a real cost savings, improving productivity efficiency and secure platform.
