抄録
Recently, there have been a drastic revolution in printing industry. Now we can have many informations from printing media, books, magazines, catalogues, and these printing media are very familiar with our daily life. But, by the amazing development in IT world, the sty1e of providing informations have changed. The new style is based on the disital technologies called "electronic media", and the new media seems to be superior to the printing media. We call these phenomena as "the switchover from printing media to electronic media". But these phenomena are transitional, in near future, the two type of media, printing media & e1ectronic media will coexist each other as a mixed media.
