아이디= ID ,
이름=name
주민번호= ID card number (for korean only) foreigner dont have
아이디 저장= save ID
주민번호 : same as the third one
are u going to apply for the web of korea? if so, the ID means your login ID, and ID card, u are foreigner , so dont have it, some webs application has the one for foreigner, click it and apply as foreigner, pls check whether ur ID is ok to use or not, if ok, then u would save the ID..