Dubbed “Coder in Chief,” Barack Obama is being described as the first US president to dabble in computer programming. After kicking off the 2014 Computer Science Education Week with a call to code, Obama joined an “Hour of Code” event, an international campaign that aims to show how much an hour of programming can amount to. Code.org co-founder Hadi Parvoti told Wired that the president did not fully complete the tutorial, but did finish a number of exercises with the likes of Google’s visual programming language Blocky.