<?xml version="1.0" encoding="UTF-8"?><Collection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="thesaurus.xsd">  <Concept>    <prefLabel>computer</prefLabel>    <altLabel>computer equipment; computer hardware</altLabel>    <narrower>embedded computer system; mainframe computer; personal computer; supercomputer</narrower>    <broader>electronic equipment</broader>    <related>computer crime; computer equipment contract; computer equipment industry; computer equipment management; computer network; information technology</related>  </Concept>  <Concept>    <prefLabel>computer network</prefLabel>    <narrower>Internet; intranet; local area network; wide area network</narrower>    <broader>computer; telecommunication</broader>    <related>data transmission; computer network protocol; computer bulletin board</related>  </Concept>  <Concept>    <prefLabel>computer security</prefLabel>    <altLabel>computer security measures</altLabel>    <definition>Measures to protect a compute's hardware, software and data. </definition>    <narrower>computer crimes; computer viruses; data encryption; data integrity; facility security; hackers; identity verification; information resources management</narrower>    <broader>security</broader>  </Concept>  <Concept>    <prefLabel>computer software</prefLabel>    <altLabel>computer programs; software</altLabel>    <definition>Instructions that cause computers to function. Includes data bases and programs.</definition>    <narrower>application software; computer virus; data base; operating system</narrower>    <broader>information technology; programming languages</broader>    <related>computer software documentation; computer software industry; computer software reuse; computer software verification and validation; computer-aided software engineering</related>  </Concept>  <Concept>    <prefLabel>computer virus</prefLabel>    <definition>computer software that copies itself by attaching to other software and executing unwanted operations</definition>    <broader>computer software</broader>    <related>computer crime; computer security; hacker</related>  </Concept></Collection>