1. Cloud computing is all the rage.As a metaphor for the Internet, "the cloud" is a familiar cliché, but when combined with "computing," the meaning gets bigger and fuzzier.

2. Cloud Computing Cloud computing is an promising computing technology that uses the internet and remote servers that retain data and applications. It allows consumers and businesses to use applications without installation and accesspersonal files at any computer with internet access. Cloud computing allows efficient computing through centralized storage, memory, processing and bandwidth.

3. A Cloud could be private or public. A public cloud sells services to anyone on the internet. A cloud comes into play when you think about needs: a way to increase capacity and add capabilities on the fly