Title: Chŏngbo sentʻŏ esŏ ŭi mŏltʻimidiŏ hwaryong e kwanhan yŏnʼgu
Subtitle: tʻŏchʻi sŭkʻŭrin e ŭihan chŏnggi kanhaengmul kwalli rŭl chungsim ŭro : sŏksa hagwi nonmun
Subjects: Automation, Multimedia systems, Interactive multimedia, Serials control systems, Information services