Public, private and hybrid cloud are the main cloud deployment models, describing where computing resources run and who shares them. Public cloud is shared provider infrastructure, private cloud serves one organisation, and hybrid connects the two.
Data residency is the requirement or decision to store and process data in a specific country or region. It is driven by law, regulation, contracts or customer expectations, and shapes how cloud and AI systems are deployed.
Cloud computing is the on-demand delivery of servers, storage, databases and software over the internet, paid for by usage. Teams rent capacity from a provider instead of buying and running their own hardware.
Cloud migration is the process of moving applications, data and infrastructure into a cloud environment. The source may be an on-premises data centre or another provider, and services must stay running and secure throughout.
Disaster recovery is the set of plans, tools and procedures for restoring systems and data after a major outage, data loss or regional failure. It aims to resume service within agreed time and data-loss limits.
Edge computing is the practice of processing data close to where it is created or used, such as devices, local gateways or regional points of presence. It avoids sending everything to a central data centre or cloud region.
Multi-cloud is a strategy of using services from two or more public cloud providers within one organisation. It is chosen for resilience, specific capabilities, regulatory reasons or bargaining power.
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