Cloud computing: intelligence, resources and models
An enterprise can opt for either the traditional model or a cloud model to deliver IT services. Under the traditional model, the enterprise first purchases hardware such as servers and storage devices, leases network bandwidth, and perhaps builds a data center. The enterprise then purchases licenses for operating system software and the software applications needed for delivering the required functionality. Of course, professional IT staff must be engaged to maintain the hardware and software. As the business grows and customers require new functionality, new hardware and software must be provided and software customized, while ensuring the interoperability between the old and new hardware and software. This process must be repeated whenever capacity is expanded or a new functional module is added.
Cloud computing changes this completely…


China Unicom (Hong Kong) Ltd, the nation’s second-biggest telecom operator by subscriber numbers, announced on Thursday it had started offering cloud-based services to enterprise customers, a move that will help diversify its revenue sources.