{"id":6800,"date":"2014-10-30T08:21:04","date_gmt":"2014-10-30T15:21:04","guid":{"rendered":"http:\/\/www.wambooli.com\/blog\/?p=6800"},"modified":"2014-10-30T08:21:04","modified_gmt":"2014-10-30T15:21:04","slug":"early-os-source-code-available","status":"publish","type":"post","link":"https:\/\/www.wambooli.com\/blog\/?p=6800","title":{"rendered":"Early OS Source Code Available"},"content":{"rendered":"<p>Both Bill Gates and Steve Jobs stole from Xerox, specifically from the Alto computer. It was the first graphical operating system &#8212; plus it had a mouse.<\/p>\n<p>While it took more than a decade for Microsoft and Apple to develop graphical operating systems, the king of text operating systems in the 1970s was CP\/M. It ran on a variety of microcomputers, and was the dominant OS before DOS came on the scene in 1981.<\/p>\n<p>The source code for both operating systems has now been released. You can read the article for more info; the source code is available from the Computer History Museum&#8217;s website.<\/p>\n<p>I obtained a copy of the CP\/M source code files. They&#8217;re written in a language called PL\/M, which is high-level so it&#8217;s readable. Well, readable by nerds such as myself.<\/p>\n<p><a href=\"http:\/\/www.itworld.com\/article\/2838925\/exposed-xerox-alto-and-cp-m-os-source-code-released.html\" target=\"_blank\">IT World<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>IT World<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-6800","post","type-post","status-publish","format-standard","hentry","category-wambooli-news"],"_links":{"self":[{"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/6800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6800"}],"version-history":[{"count":1,"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/6800\/revisions"}],"predecessor-version":[{"id":6801,"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/6800\/revisions\/6801"}],"wp:attachment":[{"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wambooli.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}