Cloud Computing
Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.
Cloud computing has great potential of providing robust computational power to the society at reduced cost. It enables customers with limited computational resources to outsource their large computation workloads to the cloud, and economically enjoy the massive computational power, bandwidth, storage, and even appropriate software that can be shared in a pay-per-use manner.
Cloud Model is Composed of five Essential Characteristics, three service models, and four deployment Models
Essential Characteristics:
- ➣ On-demand self-service
- ➣ Broad network access
- ➣ Resource pooling
- ➣ Rapid elasticity
- ➣ Measured service
Service Models:
- ➣ Software as a Service (SaaS).
- ➣ Platform as a Service (PaaS)
- ➣ Infrastructure as a Service (IaaS)
Deployment Models
- ➣ Private cloud
- ➣ Community cloud
- ➣ Public cloud
- ➣ Hybrid cloud
Cloud computing is a model for enabling ubiquitous, convenient, on- demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.
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