It’s the one of ten most emerging technologies as reviewed by hub of engineering world MIT. Stuart Parking fellow and manager of Magneto electronics group at IBM who had done research on the fundamental physics of magnetic materials and his research gave the present hard disks in every pc and laptop the thousands of storage capacity than it used to be before.
Parkin and his team now are in the process of developing a different kind of memory which could support heavy storage just as magnetic hard disks and speed of flash memory. In his words “Both the semiconductor and solid state devices will reach their size limits in terms of accessing bits and there should be some new means and which could be the one like ours which is 3 dimensional unlike the current memories.”
Their innovative technology has to do with U shaped magnetic nanowires arranged vertically as shown in the figure. There will be different magnetic polarities in the wires at different regions and the boundaries between the regions represent 1’s or 0’s depending on the polarities of the regions on the either side. Data can be moved when the current with single spin either +1/2 or –1/2 is passed through the wires. Read and write of data is performed at the bottom of the wires with small devices as shown through another wire perpendicular to the U shaped wire and the small device reads data from the nanowire.
Race-Track Memory
What is the use of UPS for a computer?
UPS is an electrical device used for effective supply of power to computer. UPS stands for Uninterruptible Power Supply. All the power supplied to the computer has to pass through it and then reach the computer peripherals. UPS makes sure that the power supply to the computer is always in the sustainable range of the computer. It rectifies the fluctuations and also the spikes of the current and ensures the supply of uniform current flow. UPS is different from emergency power system both in the functionality and operations. UPS will be running as long as the computer remains on but inverter gets switched immediately after the power cut.
If the current amplitude is too high, this may damage the computer and then UPS halts the power supply to the computer and protects it from damage or burning out. UPS also acts an extra power supply for a small period of time in which you can save your important data avoiding the data loss. Is it required to UPS buy for a computer? This depends on your house-hold power supply, if your computer receives too many variations in the amplitude of current, it is better to use a UPS because it is good to save 20,000 rupees computer with a 1,200 UPS. Most of the electric supplies are now well controlled. Hence it is not a mandatory item to buy. If you have frequent power cuts making loss of your data, then better buy it.
