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Server - Glossary | MDN 1/3 https://developer.mozilla.org/en-US/docs/Glossary/Server reference web, html, css, javascript, documentation 2026-05-05T05:45:01.193194+00:00 kb-cron

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Server

A server is a software or hardware offering a service to a user, usually referred to as client. A hardware server is a shared computer on a network, usually powerful and housed in a data center. A software server (often running on a hardware server) is a program that provides services to client programs or a user interface to human clients. Services are provided generally over local area networks or wide area networks such as the internet. A client program and server program traditionally connect by passing messages encoded using a protocol over an API. For example:

  • An Internet-connected Web server is sending a HTML file to your browser software so that you can read this page
  • Local area network server for file, name, mail, print, and fax
  • Minicomputers, mainframes, and super computers at data centers

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