The cloud refers to a vast network of remote servers hosted on the internet. Instead of relying on local computers or servers, users access data and applications through the internet. This network of servers is maintained and operated by third-party providers, often referred to as cloud providers.
Cloud computing operates on various models, including Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS). IaaS provides fundamental computing resources like servers, storage, and networking. PaaS offers a platform for application development and deployment. SaaS delivers applications directly over the internet.
Cloud technology leverages virtualisation, which allows multiple virtual machines to run concurrently on a single physical server. This efficient use of resources enables cloud providers to offer scalable and cost-effective services to a wide range of users.