10/07/2024
Cloud computing refers to the delivery of various services over the internet, including storage, processing power, databases, networking, software, and analytics. Key characteristics and benefits of cloud computing include:
1. On-Demand Self-Service: Users can access computing resources as needed without requiring human intervention from service providers.
2. Broad Network Access: Resources are available over the network and accessed through standard mechanisms that promote use by heterogeneous thin or thick client platforms (e.g., mobile phones, tablets, laptops).
3. Resource Pooling: Providers’ 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.
4. Rapid Elasticity: Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand.
5. 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).
Types of Cloud Services
1. Infrastructure as a Service (IaaS): Provides virtualized computing resources over the internet. Examples include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP).
2. Platform as a Service (PaaS): Offers hardware and software tools over the internet, typically those needed for application development. Examples include Google App Engine, AWS Elastic Beanstalk, and Microsoft Azure App Services.
3. Software as a Service (SaaS): Delivers software applications over the internet, on a subscription basis. Examples include Google Workspace, Microsoft Office 365, and Salesforce.
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