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Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources. These resources can include networks, servers, storage, applications, and services that can be rapidly provisioned and released with minimal management effort or service provider interaction.
Here are some key aspects of cloud computing:
On-Demand Self-Service
Cloud computing allows users to unilaterally provision computing capabilities, such as server time and network storage, as needed without requiring human interaction with each service provider.
Resource Pooling
The provider’s computing resources are pooled to serve multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned according to consumer demand.
Measured Service
Cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth, and active user accounts).
Broad Network Access
Capabilities are available over the network and accessed through standard mechanisms that promote use by heterogeneous thin or thick client platforms (e.g., mobile phones, laptops, and PDAs).
Rapid Elasticity
Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand.
Here are some key aspects of cloud computing:
Public Cloud
The cloud resources (like servers and storage) are owned and operated by a third-party cloud service provider and delivered over the internet.
Hybrid Cloud
This is a combination of public and private clouds, bound together by technology that allows data and applications to be shared between them.
Private Cloud
The cloud resources are used exclusively by a single business or organization.
Cloud computing offers several benefits such as cost efficiency, scalability, performance, speed, productivity, reliability, and security. However, it also comes with challenges such as data privacy, compliance, and the dependency on internet connectivity.
