11. MAGNETORESISTIVE RANDOM ACCESS MEMORY (MRAM)

♤ MRAM, also know as magnetoresistive RAM or magnetic RAM, is a type of non volatile RAM memory which uses magnetic charges in order to store data. This is different from SRAM and DRAM, which use electric charges to store data. The advantage of MRAM is that it retains data when power is turned off. It requires only a small amount of electricity to be able to store data bits. MRAMs work by using two iron plates which "sandwich" a thin insulating layer. One of the iron plates is a magnet which is set to a specific charge, whereas the other plate is variable and allows for the polarity to change according to the pull of the external fields. Millions of magnetic "sandwiches" work together to make up the MRAM memory device. MRAM requires less power than other memory storage systems because it writes and stores data by using magnetic fields instead of electrical circuits.

♤ Application: computers, consumer electronics, transportation, military and avionics systems, robotics etc.

♤ In News:A team of researcher at National University of Singapore (NUS) have developed new MRAM technology.

The technology will drastically increase storage space and enhance memory