The lecture delivery is crazy! The voice is easy to listen to and the situational drama is fun so I'm listening without thinking. It's a lecture that's easy to listen to without any burden. I listened to this and immediately paid for Gamja's data structureㅋㅋㅋ I can't believe I can understand the operating system that I had to approach with difficulty by memorization so easily!!!!!! It's totally awesome. If there's anyone around me who's studying operating systems, I'll definitely recommend this lecture I'm ready to pay so please hurry up and release another lecture~~>< Gamja is the best!!ㅎㅎㅎ