hackthemack Karma 781 Created 7 years ago Recent Submissions 1. ▲ Microsoft open sources DOS 1.00 on 45th anniversary (opensource.microsoft.com) 79 points · 2 months ago · 19 comments 2. ▲ Does internet advertising work? (2020) (freakonomics.com) 24 points · 2 months ago · 35 comments All submissions on HN · View profile on HN