Memristor is a name of passive two-terminal circuit elements in which there is a functional relationship between charge and magnetic flux linkage.

A Memristor could be used to replace the Transistor within devices such as memory, CPU devices, and because of the nonvolatile nature, (do not lose stored data when switched off), Solid State Hard drives. It has been stated that these Memristors could lead to new designs of computers. They may be able to be used in an analogue way that mimics the human brain. They could , of course, also be used in other devices.

The Memristor term is short for memory resistor.

Memristor chips require less energy to operate than current alternatives, such as flash memory. They also store data in approximately half the space required by flash chips and are virtually immune to interference from radiation – making them attractive to any manufacturer looking to create ever-smaller but ever-more-powerful devices.

A Memistor is the fourth passive device predicted by Prof. Leon Chua in 1971: the resistor, the capacitor, and the inductor and now the Memistor.

Memristor From Wikipedia, the free encyclopedia

HP Records New Breakthrough in Memristor Development. Hewlett-Packard Labs research scientists reported a new breakthrough in their continuing development of memristors—next-generation memory that some industry people see as an eventual replacement for NAND flash and DRAM storage. A memristor, basically a resistor with memory, apparently has more capabilities than anybody expected. HP Labs has previously reported discovering that a memristor can perform logic, potentially enabling computation to be performed in chips where data is stored. This could mean a radical change in the way future IT is designed and built.

HP Labs discovery demonstrates the viability – and versatility – of memristor technology If memristors can perform logic, they might one day be used to create computer processors, suggests Stanley Williams. And since those processors could be made with industry-standard materials and processes, memristors might help extend Moore’s Law past the point where silicon technology runs up against insurmountable technical barriers.

The Mysterious Memristor. (IEEE Spectrum, Institute of Electrical and Electronics Engineers). Anyone familiar with electronics knows the trinity of fundamental components: the resistor, the capacitor, and the inductor. In 1971, a University of California, Berkeley, engineer predicted that there should be a fourth element: a memory resistor, or memristor. But no one knew how to build one. Now, 37 years later, electronics have finally gotten small enough to reveal the secrets of that fourth element. The memristor, Hewlett-Packard researchers revealed today in the journal Nature , had been hiding in plain sight all along--within the electrical characteristics of certain nanoscale devices. They think the new element could pave the way for applications both near- and far-term, from nonvolatile RAM to realistic neural networks. The memristor's memory has consequences: the reason computers have to be rebooted every time they are turned on is that their logic circuits are incapable of holding their bits after the power is shut off. But because a memristor can remember voltages, a memristor-driven computer would arguably never need a reboot. ”You could leave all your Word files and spreadsheets open, turn off your computer, and go get a cup of coffee or go on vacation for two weeks,” says Williams. ”When you come back, you turn on your computer and everything is instantly on the screen exactly the way you left it.:-

Flexibler Memristor entwickelt

The memristor device, (Spectrum-Soft), is the fourth elementary passive element (in addition to the resistor, capacitor, and inductor) that was first theorized about by Prof. Leon Chua in 1971 and finally developed recently by HP Labs. The resistance of the memristor will change depending on the flow of charge for the device. If the charge flows in one direction, the resistance of the device increases. If the charge flows in the other direction, the resistance of the device decreases. The key to the memristor is that when the flow of charge stops, the device remembers the last resistance it was at, so that when the flow of charge resumes, the device also resumes operation at the previous resistance. The memristor has great potential for low power, high density memory applications.

Memristor circuits. About the importance of the memristor circuits in new technologies. As you may or may not know, memristor circuits are expected to be cutting edge and the future of all technologies.

Memristor could make computers work like human brains. HP says the discovery of the memristor paves the way for anything from instant-on computers to systems that can "remember and associate series of events in a manner similar to the way a human brain recognizes patterns." Such brain-like systems would allow for vastly improved facial or biometric recognition, and they could be used to make appliances that "learn from experience."

Memristors: 'Computer synapse' analyzed at the nanoscale (PhysOrg) -- Researchers at Hewlett Packard and the University of California, Santa Barbara, have analysed in unprecedented detail the physical and chemical properties of an electronic device that computer engineers hope will transform computing.

Researchers map out the switching location of a memristor A memristor is a two-terminal electronic device whose conductance can be precisely modulated by charge or flux through it. It has the special property that its resistance can be programmed (resistor) and subsequently remains stored (memory). It is thought memristors - with the ability to 'remember' the total electronic charge that passes through them - will be of greatest benefit when they can act like synapses within electronic circuits, mimicking the complex network of neurons present in the brain, enabling our own ability to perceive, think and remember. Researchers have now analyzed in unprecedented detail the physical and chemical properties of an electronic device that computer engineers hope will transform computing.

Also see Nanobots, NanoRobots, Nanotechnolgy. Dangers of Nanotechnology. Is Nanotechnology dangerous?

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