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Computer configuration
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<p>In <a href="/facts/Information_systems/apcSzFLh">communications</a> or <a href="/facts/Computer_system/SQe1aK05">computer systems</a>, a configuration of a system refers to the arrangement of each of its functional units, according to their nature, number and chief characteristics. Often, configuration pertains to the choice of hardware, software, <a href="/facts/Firmware/62UVKIUK">firmware</a>, and documentation. Along with its architecture, the configuration of a computer system affects both its function and performance. </p><p>The configuration of a computer is typically recorded in a <a href="/facts/Configuration_file/DDzU0FLJ">configuration file</a>. In modern computer systems, this is <a href="/facts/Auto-configuration/DmbnmqIx">created and updated automatically</a> as physical components are added or removed. Applications may assume that the configuration file is an accurate representation of the physical configuration and act accordingly. </p>