Novel Hardware for Unconventional Computing
- Analog circuit
An electronic circuit that operates with currents and voltages that vary continuously with time and have no abrupt transitions between levels. Since most physical quantities, e.g., velocity and temperature, vary continuously, as does audio, an analog circuit provides the best means of representing them.
- Current mirror
A circuit that copies single input current to single (or multiple) output nodes. Two types of current mirrors exist: nMOS for current sinks and pMOS for current sources. Combining both types of current mirrors, one can invert a direction of currents, e.g., sink to source or source to sink.
- Digital circuit
An electronic circuit that can take on only a finite number of states. Binary (two-state) digital circuits are the most common. The two possible states of a binary circuit are represented by the binary digits, or bits, 0 and 1. The simplest forms of digital circuits are built from logic gates, the building blocks of the digital computer.
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