# 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  6. SAAS(system as a service): availability of a specific software through the cloud 7. PAAS(platform as a service): availability of development softwares 8. IAAS(infrastructure as a service): availability of CPU + hardware through the cloud
