back end
noun
• the end of something which is furthest from the front or the working end.
• "the back end of the car swung round"
• the part of a computer system or application that is not directly accessed by the user, typically responsible for storing and manipulating data.
• "the back end has three parts to it: server, application, and database"
back end
adjective
• relating to the end of a project, process, or investment.
• "many annuities have back-end surrender charges"
• relating to or denoting the part of a computer system or application that is not directly accessed by the user, typically responsible for storing and manipulating data.
• "a back-end database server"