1o_ Relative to digits, such as fingers or numbering (in principle, decimal ) . See fingerprint . 2o_ Number-based system for processing information, initially binary, although for operational reasons handle octal, hexadecimal , ; it is associated with computing, web and electronics but only for its logical part, so it is vulgarly opposed to the analog term. 3o_ Although more digitalis is used to differentiate, it also refers to the plant, of the plantaginaceae family, and to the drug that is extracted from it to treat heart disease.