Electronic world previously knew only three types of basic components, ie resistors, capacitors, and inductors. However, since 1971 the concept of four types of components are introduced. The fourth component is the memristor. Memristor is a component that has the ability to measure the flow of electric current. After 37 years, HP (Hewlett Packard) began to develop.
|Memristor (Memory Resistor)|
Memristor (Memory Resistor) is a passive two-terminal circuit element relating to the charge and magnetic flux relationship. This component can be given information (electricstate) despite the absence of power supply (non-volatile). This concept was first introduced by Leon Chua, who is a scientist at UC Berkeley in 1971. But in 2008 a new team of lab HP today announced the development of a switching memristor based on a thin film of titanium dioxide.
Memristor logic works when an electric current flows in one direction to the device so that the resistance increases. then when the current flows in the opposite direction, the resistance decreases. When the flow is stopped, the last condition that memristor keep happening to him. When current flows back then memristor will resume the last state when he was active. In other words this memristor can remember the last amount of current passing through it the last time he was active.
Memristor is expected to have lower prices and higher speeds. Thus memristor is going to replace Flash memory such as memory cards, USB flash drives and solid state drives. HP targets memristor will be available in the year 2012 in the range of 2014 through 2016, and will soon replace DRAM and disk.