It is a computer system that duplicates or archives important data, files, and folders from another computer system. This can be done as a precautionary measure if the original system fails, is damaged, or needs to be restored. A backup server can also store data for remote access or off-site storage.Â
Server definition: A server is a computer program or device that provides a service to another computer program and its users, typically storing, processing, or distributing data.Â
Servers are often used sparingly in households but are more common in commercial and institutional settings and an essential part of most computer networks. When multiple computers are connected via the internet or some other network, one usually acts as a server while the others act as clients.
The client-server model is often used to allow resource sharing and collaboration between users on a network.Â
There are many advantages of having a backup server, including the following:Â
 3. It can help improve performance and reliability by taking some of the load off of your primary server.