A compact, light weight and display apparatus is formed with a display, a bulk storage means and a key signal entering are housed in a display operating unit which is provided as a separate case from a driving unit 11 for reproducing the data stored in a disc storage medium, so that when the two are connected to each other, the reproducing data read from the driving unit are transferred to the display operating unit, and is sequentially stored into the bulk storage. And when carrying it around, the display operating unit is to be disconnected, and the reproduced data stored in the bulk storage are displayed on the display based on the operation of the key signal entering. Therefore, the necessary data can be freely searched without carrying the thick and heavy driving unit, thus enhancing the convenience for use.