Computing Systems

A filename extension or file type is an identifier specified as a suffix to the name of a computer file. The extension indicates a characteristic of the file contents or its intended use. A filename extension is typically delimited from the filename with a full stop, but in some systems it is separated with spaces.

In computing, a server is a piece of computer hardware or software (computer program) that provides functionality for other programs or devices, called "clients". ... A single server can serve multiple clients, and a single client can use multiple servers.

a program that searches for and identifies items in a database that correspond to keywords or characters specified by the user, used especially for finding particular sites on the World Wide Web.

the practice of using a network of remote servers hosted on the internet to store, manage, and process data, rather than a local server or a personal computer.

Messages distributed by electronic means from one computer user to one or more recipients via a network.

Central processing unit (CPU), principal part of any digital computer system, generally composed of the main memory, control unit, and arithmetic-logic unit.

Two or more computers that are connected with one another for the purpose of communicating data electronically.