A compact size, portable audio/display electronic apparatus having a compact mass memory with the capability of entry of user originated inquirable and inquisitorial input relative to currently displayed information and the random access capability relative to the compact mass memory in retrieving data responsive to such input. The apparatus includes a recording and reproducing device for recording and reproducing data in the form of alphanumeric information, diagram graphics, animation graphics, music, voice and other audio reproducible material. The reproducing device is employed only for the reproduction of the data, retrieving means for only retrieving the data for reproduction on a random access basis. Further, the display and reproducing device is arranged in one compact housing for the synchronized reproduction of at least two kinds of such data, e.g., the display of information and the audio reproduction of information directly associated with the displayed information.

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Journal of Industrial Electronics and Applications
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