{"id":11451,"date":"2024-07-16T22:50:51","date_gmt":"2024-07-17T05:50:51","guid":{"rendered":"https:\/\/mattfife.com\/?p=11451"},"modified":"2024-06-15T10:39:47","modified_gmt":"2024-06-15T17:39:47","slug":"certain-versions-of-ms-dos-open-sourced","status":"publish","type":"post","link":"https:\/\/mattfife.com\/?p=11451","title":{"rendered":"Certain Versions of MS-DOS open sourced"},"content":{"rendered":"\n<p>Microsoft has recently release DOS 4.0 as MIT licensed OpenSource.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.youtube.com\/@DavesGarage\" data-type=\"link\" data-id=\"https:\/\/www.youtube.com\/@DavesGarage\">Dave&#8217;s Garage<\/a> does a walkthrough of the history, sets up a dev environment (masm and C 5.1 compiler), builds the source, then bonus points for writing it to an actual 5.25&#8243; floppy using a greaseweazle. He then boots it off an actual IBM XT.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/BR6F0EdyulA?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span>\n<\/div><\/figure>\n\n\n\n<p><a href=\"https:\/\/github.com\/microsoft\/MS-DOS\" data-type=\"link\" data-id=\"https:\/\/github.com\/microsoft\/MS-DOS\">Github source of Microsoft DOS 4.0, 2.0, and 1.25<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft has recently release DOS 4.0 as MIT licensed OpenSource. Dave&#8217;s Garage does a walkthrough of the history, sets up a dev environment (masm and C 5.1 compiler), builds the source, then bonus points for writing it to an actual 5.25&#8243; floppy using a greaseweazle. He then boots it off an actual IBM XT. Github source of Microsoft DOS 4.0, 2.0, and 1.25.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[9,33],"tags":[],"class_list":["post-11451","post","type-post","status-publish","format-standard","hentry","category-cool","category-retro-computing"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4WECr-2YH","jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/mattfife.com\/index.php?rest_route=\/wp\/v2\/posts\/11451","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mattfife.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mattfife.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mattfife.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mattfife.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11451"}],"version-history":[{"count":1,"href":"https:\/\/mattfife.com\/index.php?rest_route=\/wp\/v2\/posts\/11451\/revisions"}],"predecessor-version":[{"id":11452,"href":"https:\/\/mattfife.com\/index.php?rest_route=\/wp\/v2\/posts\/11451\/revisions\/11452"}],"wp:attachment":[{"href":"https:\/\/mattfife.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mattfife.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mattfife.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}