A memistor is a nanoelectric circuitry element used in parallel computing memory technology. Essentially, a resistor with memory able to perform

logic operation In mathematics and mathematical logic, Boolean algebra is a branch of algebra. It differs from elementary algebra in two ways. First, the values of the variables are the truth values ''true'' and ''false'', usually denoted 1 and 0, whereas in e ...

s and store information, it is a three-terminal implementation of the

memristor A memristor (; a portmanteau of ''memory resistor'') is a non-linear two-terminal electrical component relating electric charge and magnetic flux linkage. It was described and named in 1971 by Leon Chua, completing a theoretical quartet of fu ...

History

While the

is defined in terms of a two-terminal circuit element, there was an implementation of a three-terminal device called a ''memistor'' developed by Bernard Widrow in 1960. Memistors formed basic components of a neural network architecture called

ADALINE ADALINE (Adaptive Linear Neuron or later Adaptive Linear Element) is an early single-layer artificial neural network and the name of the physical device that implemented this network. The network uses memistors. It was developed by Professor Bern ...

developed by Widrow. The memistor was also used in MADALINE.

Essence

In one of the technical reports the memistor was described as follows: Since the conductance was described as being controlled by the time integral of current as in Chua's theory of the memristor, the memistor of Widrow may be considered as a form of memristor having three instead of two terminals. However, one of the main limitations of Widrow's memistors was that they were made from an electroplating cell rather than as a solid-state circuit element. Solid-state circuit elements were required to achieve the scalability of the integrated circuit which was gaining popularity around the same time as the invention of Widrow's memistor. An article on ArXiv suggests that the

floating-gate MOSFET The floating-gate MOSFET (FGMOS), also known as a floating-gate MOS transistor or floating-gate transistor, is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) where the gate is electrically isolated, creating a floating no ...

as well as other 3-terminal "memory transistors" may be modeled using

dynamical system In mathematics, a dynamical system is a system in which a function describes the time dependence of a point in an ambient space. Examples include the mathematical models that describe the swinging of a clock pendulum, the flow of water in ...

s equations in a similar fashion to the memristive systems of

References

External links

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Memistor - Research at Cisco
{{Electronic components Electrical components Electronic circuits in computer storage

History

Essence

See also

References

External links