Cloud Fundamentals
Whether you’re new to cloud computing or refreshing your knowledge, understanding the fundamentals is the first step towards making informed technology decisions.
This section explains the core principles of cloud computing, including cloud service models, deployment models and key terminology. Start with the essential concepts below before exploring more advanced topics such as cloud storage, data protection, sovereign cloud and sustainable cloud infrastructure.
Essential Reading
Begin your cloud learning journey
These guides provide a solid foundation for understanding modern cloud computing and how organisations consume cloud services today.
What is a Cloud Service?
Understand what cloud services are, how they work and why organisations are increasingly moving workloads from traditional on-premises infrastructure to the cloud.
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NIST Definition of Cloud Computing
Explore the internationally recognised definition of cloud computing, including its five essential characteristics, deployment models and service models.
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What is Infrastructure as a Service (IaaS)?
Learn how Infrastructure as a Service enables organisations to consume computing resources on demand without owning physical infrastructure.
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IaaS vs PaaS vs SaaS
Understand the differences between the three primary cloud service models and discover which is best suited to different business requirements.
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Private Cloud vs Public Cloud
Compare the advantages, limitations and ideal use cases for public, private and hybrid cloud environments.
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What is Multi-Cloud?
Discover why organisations increasingly use multiple cloud providers to improve resilience, flexibility and avoid vendor lock-in.
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Cloud Fundamentals Explained
Cloud computing is much more than simply hosting servers in a remote data centre. It represents a different approach to consuming IT resources, enabling organisations to access computing power, storage, networking and software on demand.
Understanding the concepts covered in this section will help you evaluate cloud providers, compare deployment models and make better-informed decisions when planning your cloud strategy.
Continue Your Learning
Now that you understand the foundations of cloud computing, explore the next stage of your cloud journey.
Cloud Storage
Learn how object storage, S3-compatible storage and immutable storage protect and manage modern business data.
Explore the Cloud Storage Hub →Backup & Disaster Recovery
Discover how organisations protect workloads against ransomware, outages and accidental data loss.
Explore the Backup & Disaster Recovery Hub →Sovereign Cloud
Understand how data sovereignty, jurisdiction and regulatory compliance influence cloud strategy.
Explore the Sovereign Cloud Hub →