digital code input may be fed into a random access memory bank to store the ditital code information or to address a main random access memory having previously been programmed with stitch position coordinate information referring now to fig7 there is shown therein another embodiment of a selector means 122 by which an operator can visually reproduce a desired pattern on the surface 124 thereof as shown in fig7 the surface 124 of the selector 122 is provided with a matrix of points 126 each point 126 is appropriately used for designating an individual stitch position coordinate in digital output signals for the bight and for the feed thus referring to fig7 for the stitch position 1 which is illustrated with a number 1 in a circle point 126 at this position will indicate a digital code of 0000 for the feed and 0000 for the bight at point 126 at stitch position 2 indicated as the number 2 in a circle a digital code of 0010 will be indicated for the feed and 0000 for the bight it will be seen therefore that for each pattern physically drawn or reproduced on the surface 124 of the selector 122 appropriate digital information may be selected the bight and feed digital information is indicated horizontally and vertically alongside the selector 122 in fig7 to illustrate the digital output information required for each point 126 it will be seen from the above description that a.