cloud-doc

Cloud computing advantages

1. Data center provided by network
2. You only pay for what you use
3. Bottleneck: many computers to satisfy the need of data
4. Support-expertise-paid for as a service
5. Secure-reliable-scalable

Cloud computing stack

1. SAAS(system as a service): availability of a specific software through the cloud
2. PAAS(platform as a service): availability of development softwares
3. IAAS(infrastructure as a service): availability of CPU + hardware through the cloud