  Cloud Computing is a versatile technology that can support a broad-spectrum
of applications. The low cost of cloud computing and its dynamic scaling
renders it an innovation driver for small companies, particularly in the
developing world. Cloud deployed enterprise resource planning (ERP), supply
chain management applications (SCM), customer relationship management (CRM)
applications, medical applications, business applications and mobile
applications have potential to reach millions of users. In this paper, we
explore the different concepts involved in cloud computing and we also examine
clouds from technical aspects. We highlight some of the opportunities in cloud
computing underlining the importance of clouds showing why that technology must
succeed and we have provided additional cloud computing problems that
businesses may need to address. Finally, we discuss some of the issues that
this area should deal with.
