World Smallest Hard drive can store data up to 500 Terabits per square inch

World Smallest Hard drive can store data up to 500 Terabits per square inch-min

World Smallest Hard drive out runs the state of the art technology by three order magnitude

July 18th 2016 Dutch scientists have created the world’s smallest hard drive by manipulating chlorine atoms in order to store a kilobyte of data on a microscopic storage drive. The invention means every book ever written could be stored on an itty-bitty device.

The team at Delft University’s Kavli Institute of Nanoscience wrote 1 kilobyte (8,000 bits) of data in an area just 96 nanometers wide and 126 nanometers tall. The tiny hard disk proved to be 500 times better than the best hard drives currently on the market.

“In theory, this storage density would allow all books ever created by humans to be written on a single post stamp,” lead researcher Sander Otte said in a statement.

But creating such a remarkable device was anything but easy. Instead, it involved the rearranging of tiny chlorine atoms on a copper surface, resulting in a square grid.

Otte explained that every bit is comprised of two positions lying on copper atom surface and a chlorine atom that can be slid back and forth between the two positions, which represents either “one” or “zero.”

The researchers said that since the chlorine atoms — excluding those near the holes — are surrounded by other chlorine atoms, they secure each other in place, which makes the set-up more stable than those that involve loose atoms making it more suitable for storing data.

Otte and colleagues organized memory into blocks of 8 bytes (64 bits), each of which was assigned a marker made from the same types of holes as those of the raster of chlorine atoms.

The markers serve as miniature barcodes that carry information about the location of their block on the copper layer and can indicate when a block is damaged. This means that memory can be scaled up to a bigger size regardless of physical deficiencies in the copper surface.

Source: nature.com

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Written by Lauren Brien

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