Computers To Retain Data Even After Being Switched Off

Spintronics
Japanese researchers have developed a technology that would not require your computer to be ‘powered on’ all the time to protect your data and can work fine even on normally off’ mode.

A spintronics-based technology by Japanese researchers may replace volatile memory and enable extremely energy-efficient, hand-cranked or solar-powered devices.

Most parts of present computers are made with volatile devices such as transistors and dynamic random access memory (DRAM), which loses information when powered off.

The new technology, however, would result in eliminating volatile memory, which requires power to maintain stored data, and reducing the gigantic energy losses associated with it, thus radically altering computer architectures and consumer electronics.

Japanese researchers have broadly envisioned the future of spin-transfer torque magnetoresistive random access memory (STT-MRAM) technology to create a new type of computer: a “normally off” one.

Spintronics couples magnetism with electronics at the quantum mechanical level.

If STT-MRAM is to play a key role for ‘normally off’ computers, it would first require the integration of a variety of technologies.

Researchers said, they aim the power consumption to be zero during any short intervals when users are absent is that may lead to extremely energy-efficient personal devices powered by a hand-crank or embedded solar panel.

Such devices would find use in a wide swath of applications ranging from mobile computing to wearable or embedded electronics.

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