Abstract: The invention relates to a composition device for texts in Arabic letters which comprises a keyboard having several keys each corresponding to only one basic letter in all of its shapes, and an electronic device having a memory retaining the codes corresponding to all the shapes of each of the basic letters. A working memory retains the characteristics of the keys depressed immediately before and after the considered key, and a logic determines according to the characteristics memorized in the working memory, the code corresponding to the appropriate shape of the basic letter.

Abstract: This set of signs comprises four kinds of signs (1, 2, 3, 4). The first ones (1) have the shape of an independent letter. The second ones (2) correspond to the shape of beginning letters provided with a connecting member (6) to connect it to the next sign. The third ones (3) present the shape of middle letters provided with a connecting member (6) and with a recess (7). The fourth ones (4) correspond to the shape of end letters provided with a recess (7).Through dry transfer of such signs one may compose a perfect text in Arabic letters.