Abstract: A portable graphic computer apparatus is comprised of a tablet for inputting coordinates data, a detecting circuit for detecting the coordinates data inputted by the tablet, a video image data forming circuit for forming video image data corresponding to input coordinates based on coordinates data by an output signal from the detecting circuit, a memory for storing the video image data, a video signal generating circuit for generating a video signal from the video image data, an output circuit connected to the video signal generating circuit for outputting the video signal, a cabinet for accommodating therein the above elements, and a plurality of color selecting buttons formed on the tablet for selecting color informations of the video image data, wherein the video image forming circuit identifies the designation of the color selecting buttons and for forming the video image data on the basis of the designated color.

Abstract: A portable graphic computer apparatus is comprised of a tablet for inputting coordinates data, a detecting circuit for detecting the coordinates data inputted by the tablet, a video image data forming circuit for forming video image data corresponding to input coordinates based on the coordinates data by an output signal from the detecting circuit, a memory for storing the video image data, a video signal generating circuit for generating a video signal from the video image data, a sound source, a speaker connected to the sound source, an output circuit connected to the video signal generating circuit for outputting the video signal, and a cabinet for accommodating therein elements from the tablet to the speaker, wherein musical scale or sound volume of the sound source is varied by an output signal of the coordinates data detecting circuit.

Abstract: An image generating apparatus for preparing a drawing using an image display apparatus. The image generating apparatus has a power source turn-on detection unit for instructing starting of an image forming program for forming a series of consecutive images previously stored in a ROM. When the power turn-on detection unit detects power source turn-on, a power turn-on detection signal is transmitted via an I/O interface to a central processing unit, which then reads a demonstration program from the ROM to start displaying the demonstration image on a display. When the coordinate detection unit and the key switch pressing detecting unit detect the pressure information on buttons on a tablet and key switches, the pressure information is transmitted via the I/O interface to the central processing unit.