In accordance with an example embodiment of the present invention, a system is disclosed. The system includes a sensing unit adapted to perform measurement of a parameter and produce an electrical signal based on the measurement; a memristive unit electrically coupled to the sensing unit and adapted to receive the produced electrical signal from the sensing unit, wherein the memristive unit is further adapted to produce a cumulative value of the received electrical signal over time; and a processing unit electrically coupled to the memristive unit and adapted to receive the produced cumulative value from the memristive unit, wherein the processing unit is further adapted to digitize the received cumulative value. A method and apparatuses are also disclosed.