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Friday, May 02, 2008

MEMRISTORS: MEMORIES THAT DON'T FORGET, NEVER NEED TO BOOTED UP


The possibility to continue climbing bigger computational power is open with the construction of the first experimental memristors (non linear resistors, with memory). This way, the integrated circuits (chips), will accept this electronic but small, but efficient device soon by their brothers: resistors, inductors and capacitators. With memristors, it will be possible to build computers but small but efficient, able to imitate biological functions, custom chips, biological synapsis, dense memoirs, advanced vision and speech devices. A remarkable contribution as long as the current chips almost already has reached their limits.

Memristors (15 nanometros), store and retrieved intermediate values (not single 1s and 0s) and remember the quantity of load that flowed for them after having been disconnected of the current. Nowadays most of PCs uses DRAM (dynamic random access memory) that lose data when they are disconnected. With memristors the mobil phones can last weeks without recharge. Memristors was discovered when studying properties of extremely thin spots of titanium oxide. Memristance is born in natural way in nanoscale systems, in electrónic/solid states and of ionic trasport coupled with external voltage, explaining the wide range of erratic behaviors of the voltage in passing, observed in many electronic devices made to nanoscale.

MEMRISTORS : SUPERMEMORIAS

La posibilidad de continuar escalando mayor poder computacional quedo abierta con la construcción de los primeros memristors experimentales (resistor no lineal, con memoria). Asi, los circuitos integrados (chips), aceptarán pronto este dispositivo electrónico mas pequeño, mas eficiente que sus similes : resistors, inductors y capacitators. Con los memristors, será posible construir computadoras mas pequeñas mas eficientes, capaces de imitar funciones biológicas, chips personalizados, sinapsis biológicas, memorias densas y maquinas avanzadas de visión y habla. Una notable contribución en tanto los chips actuales han casi ya alcanzado su limite.

Los memristors (15 nanometros), almacenan, recuperan valores intermedios (no solo 1s and 0s) y recuerdan la cantidad de carga que fluyó por ellos despues de haber sido desconectadas de la corriente. Hoy dia la mayoria de PCs usan DRAM (dynamic random access memory), que pierden datos cuando son desconectadas. Con memristors los celulares pueden durar semanas sin necesidad de recarga. Los memristors fueron descubiertos al estudiar propiedades de manchas extremadamente delgadas de oxido de titanio. La memristancia nace en forma natural en sistemas a nanoescala, en los que estados electrónicos/sólidos y de trasporte ionico son acoplados con voltaje externo, explicando de paso el amplio rango de conductas erráticas del voltaje, observada en muchos dispositivos electrónicos hechos a nanoescala.

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