A server is a computer device that provides various services (such as file storage, websites, email, databases, etc.) and is available for use over the Internet or a local network. A server can be a physical device that runs on specific hardware or a virtual device that runs on a host machine using virtualization.

Cloud services are services provided over the internet by cloud service providers (such as Amazon Web Services, Google Cloud, Microsoft Azure). These services can be provided based on different models such as Infrastructure as a Service (IaaS), Platform as a Service (PaaS), or Software as a Service (SaaS). Cloud services allow users to access various services and applications over the internet without requiring physical hardware or its support.

The main difference between servers and cloud services is that servers typically reside on the user’s premises or within the company’s network, whereas cloud services are available over the internet and can be provided remotely from anywhere in the world. Cloud services can also be more flexible and scalable because providers can provide the required amount of resources (such as disk space or processor power) depending on users’ needs.