"[Learn by Making] OS Mechanisms I -- Memory Management, Multitasking, and Hardware Control" hikalium Price: ¥3,520 ＜Description＞ I bought this new and kept it without reading. ＜Notes＞ Please check the condition of the item in the images. This item has been stored at home, so please understand this before purchasing. If you have any questions, feel free to ask in the comments. I am not considering lowering the price of the item. If you would like the item to be shipped early, please contact me in the comments before purchasing. #hikalium #book #electrical/mechanical/electronic communication"