Web-server definitions

A computer that runs a website. Using the HTTP protocol, the Web server delivers Web pages to browsers as well as other data files to Web-based applications. The Web server includes the hardware, operating system, Web server software, TCP/IP protocols and site content (Web pages, images and other files). If the Web server is used internally and is not exposed to the public, it is an "intranet server" (see intranet). Contrast with Web client.HTTP ServerThe term "Web server" often refers only to the HTTP server software in the machine, which provides the website functionality. HTTP is the protocol of the Web, and HTTP server software, such as Microsoft's IIS and the open source Apache server, accepts requests from the user's browser and responds by sending back HTML documents (Web pages) and files. It also executes scripts that reside in the server (CGI scripts, JSPs, ASPs, etc.), which perform functions such as database searching and credit card authorization. See IIS and Apache.One Computer or HundredsFor a very small company, a single computer can contain the HTTP server along with an FTP server for file downloads, an SMTP server for email and other Internet-related functions. In a large company, each service would be run in one or more dedicated servers, and a huge website may require hundreds of servers. See Web hosting and cloud computing.Built Into Hardware TooWeb servers are not only on the Web. HTTP server software is commonly built into hardware to provide a control panel for configuring the device from any Web browser. Most network devices such as routers, access points and print servers actually contain a mini website for this purpose (see embedded Web server).
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(computing) Software that delivers Web pages and other documents to browsers using the HTTP protocol.
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(computing) The computer on which such software runs.
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