{"id":207,"date":"2015-07-23T02:11:23","date_gmt":"2015-07-23T02:11:23","guid":{"rendered":"https:\/\/courses.candelalearning.com\/computerapps\/?post_type=chapter&#038;p=207"},"modified":"2016-04-25T18:36:10","modified_gmt":"2016-04-25T18:36:10","slug":"reading-system-software","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/chapter\/reading-system-software\/","title":{"raw":"Reading: System Software","rendered":"Reading: System Software"},"content":{"raw":"<h2>Introduction<\/h2>\r\n<b>System software<\/b> (<b>systems software<\/b>) is computer software designed to operate and control the computer hardware and to provide a platform for running\u00a0application software.<span style=\"font-size: 13.3333330154419px; line-height: 22.2222232818604px;\">\u00a0<\/span>System software can be separated into two different categories, operating systems and utility software.\r\n<ul>\r\n\t<li><img class=\"alignright wp-image-644\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/1319\/2015\/08\/03205112\/3637854482_6709123733_o.jpg\" alt=\"Photo of a computer screen showing a Twitter stream in command-line interface\" width=\"251\" height=\"150\" \/>The <i>operating system<\/i> (prominent examples being z\/OS, Microsoft Windows, Mac OS X and Linux), allows the parts of a computer to work together by performing tasks like transferring data between memory and disks or rendering output onto a display device. It also provides a platform to run high-level system software and application software.\r\n<ul>\r\n\t<li>A <i>kernel<\/i> is the core part of the operating system that defines an API for applications programs (including some system software) and an interface to device drivers.\r\n<ul>\r\n\t<li>Device drivers such as computer BIOS and device firmware provide basic functionality to operate and control the hardware connected to or built into the computer.<\/li>\r\n<\/ul>\r\n<\/li>\r\n\t<li>A <i>user interface<\/i> \"allows users to interact with a computer.\"\u00a0Since the 1980s the graphical user interface (GUI) has been perhaps the most common user interface technology. The command-line interface is still a commonly used alternative.<\/li>\r\n<\/ul>\r\n<\/li>\r\n\t<li><i>Utility software<\/i> helps to analyze, configure, optimize and maintain the computer, such as virus protection.<\/li>\r\n<\/ul>\r\nIn some publications, the term <i>system software<\/i> also includes software development tools (like a compiler, linker or debugger).\r\n\r\nIn contrast to system software, software that allows users to do things like create text documents, play games, listen to music, or web browsers to surf the web are called application software.<span style=\"font-size: 13.3333330154419px; line-height: 22.2222232818604px;\">\u00a0<\/span>The line where the distinction should be drawn isn't always clear. Most operating systems bundle such software. Such software is not considered <i>system software<\/i> when it can be uninstalled without affecting the functioning of other software. Exceptions could be e.g. web browsers such as Internet Explorer where Microsoft argued in court that it was system software that could not be uninstalled. Later examples are Chrome OS\u00a0and Firefox OS where the browser functions as the only user interface <i>and<\/i> the only way to run programs (and other web browser can not be installed in their place), then they can well be argued to <i>be<\/i> (part of) the operating system and then system software.","rendered":"<h2>Introduction<\/h2>\n<p><b>System software<\/b> (<b>systems software<\/b>) is computer software designed to operate and control the computer hardware and to provide a platform for running\u00a0application software.<span style=\"font-size: 13.3333330154419px; line-height: 22.2222232818604px;\">\u00a0<\/span>System software can be separated into two different categories, operating systems and utility software.<\/p>\n<ul>\n<li><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-644\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images-archive-read-only\/wp-content\/uploads\/sites\/1319\/2015\/08\/03205112\/3637854482_6709123733_o.jpg\" alt=\"Photo of a computer screen showing a Twitter stream in command-line interface\" width=\"251\" height=\"150\" \/>The <i>operating system<\/i> (prominent examples being z\/OS, Microsoft Windows, Mac OS X and Linux), allows the parts of a computer to work together by performing tasks like transferring data between memory and disks or rendering output onto a display device. It also provides a platform to run high-level system software and application software.\n<ul>\n<li>A <i>kernel<\/i> is the core part of the operating system that defines an API for applications programs (including some system software) and an interface to device drivers.\n<ul>\n<li>Device drivers such as computer BIOS and device firmware provide basic functionality to operate and control the hardware connected to or built into the computer.<\/li>\n<\/ul>\n<\/li>\n<li>A <i>user interface<\/i> &#8220;allows users to interact with a computer.&#8221;\u00a0Since the 1980s the graphical user interface (GUI) has been perhaps the most common user interface technology. The command-line interface is still a commonly used alternative.<\/li>\n<\/ul>\n<\/li>\n<li><i>Utility software<\/i> helps to analyze, configure, optimize and maintain the computer, such as virus protection.<\/li>\n<\/ul>\n<p>In some publications, the term <i>system software<\/i> also includes software development tools (like a compiler, linker or debugger).<\/p>\n<p>In contrast to system software, software that allows users to do things like create text documents, play games, listen to music, or web browsers to surf the web are called application software.<span style=\"font-size: 13.3333330154419px; line-height: 22.2222232818604px;\">\u00a0<\/span>The line where the distinction should be drawn isn&#8217;t always clear. Most operating systems bundle such software. Such software is not considered <i>system software<\/i> when it can be uninstalled without affecting the functioning of other software. Exceptions could be e.g. web browsers such as Internet Explorer where Microsoft argued in court that it was system software that could not be uninstalled. Later examples are Chrome OS\u00a0and Firefox OS where the browser functions as the only user interface <i>and<\/i> the only way to run programs (and other web browser can not be installed in their place), then they can well be argued to <i>be<\/i> (part of) the operating system and then system software.<\/p>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-207\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Shared previously<\/div><ul class=\"citation-list\"><li>System Software. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/en.wikipedia.org\/wiki\/System_software\">https:\/\/en.wikipedia.org\/wiki\/System_software<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0\/\">CC BY-NC-SA: Attribution-NonCommercial-ShareAlike<\/a><\/em><\/li><li>Twitter in a command line interface. <strong>Authored by<\/strong>: Christopher Penn. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/www.flickr.com\/photos\/financialaidpodcast\/3637854482\/\">https:\/\/www.flickr.com\/photos\/financialaidpodcast\/3637854482\/<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/\">CC BY-NC-ND: Attribution-NonCommercial-NoDerivatives <\/a><\/em><\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":74,"menu_order":2,"template":"","meta":{"_candela_citation":"[{\"type\":\"cc\",\"description\":\"System Software\",\"author\":\"\",\"organization\":\"\",\"url\":\"https:\/\/en.wikipedia.org\/wiki\/System_software\",\"project\":\"\",\"license\":\"cc-by-nc-sa\",\"license_terms\":\"\"},{\"type\":\"cc\",\"description\":\"Twitter in a command line interface\",\"author\":\"Christopher Penn\",\"organization\":\"\",\"url\":\"https:\/\/www.flickr.com\/photos\/financialaidpodcast\/3637854482\/\",\"project\":\"\",\"license\":\"cc-by-nc-nd\",\"license_terms\":\"\"}]","CANDELA_OUTCOMES_GUID":"","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-207","chapter","type-chapter","status-publish","hentry"],"part":206,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/pressbooks\/v2\/chapters\/207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/wp\/v2\/users\/74"}],"version-history":[{"count":6,"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/pressbooks\/v2\/chapters\/207\/revisions"}],"predecessor-version":[{"id":1364,"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/pressbooks\/v2\/chapters\/207\/revisions\/1364"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/pressbooks\/v2\/parts\/206"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/pressbooks\/v2\/chapters\/207\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/wp\/v2\/media?parent=207"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/pressbooks\/v2\/chapter-type?post=207"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/wp\/v2\/contributor?post=207"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/sanjacinto-computerapps\/wp-json\/wp\/v2\/license?post=207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}