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Cloud computing
What the cloud is and how it works: service models, virtual machines, containers and serverless.
7 lessons
- What is cloud computing? Cloud computing means renting computing over the internet instead of owning it. The five features that define it, and what they mean for a small business. Beginner 3 min read
- How cloud computing works What sits behind a cloud service: data centres and regions, virtualisation, a meter on what you use, and security duties shared with the provider. Intermediate 3 min read
- Public cloud vs private cloud vs hybrid cloud Public, private and hybrid describe who a cloud is built for. What each one means, how they really differ, and how a small business can choose. Intermediate 3 min read
- What is software as a service (SaaS)? SaaS is software the provider runs for you and you use over the internet. What the provider looks after, what stays with you, and what to ask before signing up. Beginner 3 min read
- What is a virtual machine? A virtual machine is a computer made of software, running on a physical one. What a hypervisor does, why businesses use them, and what to look after. Beginner 3 min read
- What is a container? A container packages one application with the files it needs. How it differs from a virtual machine, why developers use containers, and what to ask about yours. Intermediate 3 min read
- What is serverless computing? Serverless means the cloud provider runs the servers and you pay only when your code runs. How it works, where it fits, and what to ask a developer. Intermediate 3 min read
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