{"entity": "PC-DOS", "url": "https://wpnews.pro/entity/PC-DOS", "count": 1, "articles": [{"slug": "microsoft-open-sources-the-earliest-dos-source-code-discovered-to-date", "title": "Microsoft open-sources \"the earliest DOS source code discovered to date\"", "url": "https://wpnews.pro/news/microsoft-open-sources-the-earliest-dos-source-code-discovered-to-date", "published_at": "2026-05-24 01:21:13+00:00"}]}