Cloud Computing Explained: Concepts, mofdels, and services, Cheat Sheet of Introduction to Computing

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Introduction to Cloud Computing Cloud Computing is the delivery of computing services—like servers, storage, databases, networking, software, and more—over the internet ("the cloud"). Instead of owning and maintaining physical data centers and servers, companies can rent computing power, storage, and applications from a cloud provider on an as-needed basis. Key Characteristics : 1. On-Demand Self-Service : - Users can access computing resources like servers and storage automatically, without requiring human intervention from the service provider. - Example : A developer can spin up a virtual server in the cloud in minutes to run an application. - Use Case : Startups can quickly deploy applications without waiting for physical hardware setups. 2. Broad Network Access : - Cloud services are available over the network and accessed through standard mechanisms, like a web browser, across various devices (e.g., laptops, smartphones). - Example : Accessing your Google Drive files from your phone, tablet, or computer. - Use Case : Employees can collaborate on documents from different locations using cloud-based tools like Google Workspace. 3. Resource Pooling: - Cloud providers pool computing resources to serve multiple customers using a multi-tenant model. Resources are dynamically allocated and reallocated according to demand. - Example : Multiple businesses can share the same physical servers, but their data is isolated and secure. - Use Case : A company can efficiently manage varying workloads without investing in dedicated infrastructure.