  As the world enters the age of ubiquitous computing, the need for
reconfigurable hardware operating close to the fundamental limits of energy
consumption becomes increasingly pressing. Simultaneously, scaling-driven
performance improvements within the framework of traditional analogue and
digital design become progressively more restricted by fundamental physical
constraints. Thus, a true paradigm shift in electronics design is required for
fuelling the next big burst in technology. Here we lay the foundations of a new
design paradigm that fuses analogue and digital thinking by combining digital
electronics with memristive devices for achieving charge-based computation;
information processing where every dissipated charge counts. This is realised
by introducing memristive devices into standard logic gates, thus rendering
them reconfigurable and able to perform analogue computation at a power cost
close to digital. The power of this concept is then showcased by experimentally
demonstrating a hardware data clusterer and a fuzzy NAND gate using this
principle.
