A silane-free coating composition includes a polar aprotic reactive diluent, a colloidal inorganic oxide, and a crosslinkable monomer that has a functionality of at least one. By changing clock signals to be phase-locked in three delay locked loops, a phase interval of 57 ps is formed. First, a binary dot-matrix outline shape is received, which is designed to render a binary dot-matrix character image on a binary dot-matrix display. The electronic hand-held device can output responses through an audio speaker, a visual LCD display device, and, optionally, through other output devices including printers.