Discrete electronic modules, such as display tiles, designed and configured to be mosaicked and operatively connected with one another and/or to one or more differing types of discrete electronic modules. In some embodiments, the electronic modules include one or more recessed receptacles along their edges that receive corresponding connector biscuits that operatively connect abutting or confronting electronic modules with one another and/or to a controller. In some embodiments, the sizes of the recessed receptacles and connector biscuits are precisely matched so that the biscuits participate in aligning the abutting or confronting display tiles with one another. In some embodiments, the recessed receptacles are provided in recesses in the backsides of the display tiles, which allows each tile to be easily installed and removed from a display mosaic of which the tile is part.