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It may have its roots in futuristic literature, but a handful of experts are achieving significant advances attempting to build computers out of biological material.

Step into the fascinating realm of organic computation.

The Idea of Living Computers

In the future, they hope we could see server farms full of organic computing units which replicate aspects of how artificial intelligence processes information - and could use a fraction of the electricity of current methods.

Many understand the notions of equipment and applications in the computers we currently use.

The somewhat eyebrow-raising term applied to describe what scientists are developing is "wetware".

Basically, it includes producing neurons which are cultured into groups called mini-organs, which in turn can be connected to sensing devices - at which point the process of attempting to utilize them like small computing units can start.

The Approach

For many people, the fundamental idea of biological computing is possibly a bit weird.

"In science fiction, people have been living with such concepts for decades," he explained.

The method starts with biological building blocks obtained from skin tissue, which researchers purchase from approved sources. The biological contributors are unidentified.

But, perhaps surprisingly, they're not short of volunteers.

In the lab, cellular biologists work with multiple tiny spherical structures.

Every small orb is basically a miniature, laboratory-cultivated neural cluster, made out of biological material which have been cultured to become groups of brain cells and supporting cells - these constitute the biological structures.

They don't approach the complexity of a human brain, but they possess the same building blocks.

Research and Feedback

Subsequent to a process which can last several months, the organoids are set up for linking to an electrode and then activated to answer to basic input signals.

This establishes a way for neural communications to be transmitted and detected, with the findings documented using a normal computer hooked up to the arrangement.

This constitutes an elementary examination: you activate a button which transmits an electrical impulse through the interfaces, and if it operates (it doesn't always) you can partially detect a brief increase of activity on a screen in reaction.

Neural activations are important first steps towards the researchers' primary objective of triggering learning in the biocomputer's neurons so they can eventually adapt to execute functions.

Keeping Living Computers Alive

Sustaining an conventional system functioning is straightforward - it only requires a electricity source - but what happens with organic processors?

This represents an inquiry scientists don't have an answer for yet.

"Organoids lack circulatory networks," said a biological computing specialist.

"Our brains has vascular networks that distribute across it at multiple scales and deliver sustenance to keep it working well.

"We don't yet know how to create them effectively. So this is the main existing difficulty."

One thing is for sure though. When we talk about a system failing, with "wetware" that is literally the case.

Notable advances has been made in recent years: its organoids can now remain viable for up to several months.

Yet, scientists have documented some unusual observations related to their eventual demise.

Sometimes they observe a burst of response from the organoids prior to expiration – resembling the elevated pulse and brain activity which has been recorded in certain individuals at end-of-life.

Real-world Uses

Different organizations are working in the organic processing arena.

One organization reported that it had achieved getting artificial neurons to interact with the historical digital entertainment Pong.

In another location, experts are also creating neural structures to study how they process information – but in the framework of pharmaceutical research for brain disorders like Alzheimer's and autism.

The expectation is that machine learning will eventually be able to supercharge this kind of work.

But, for now, numerous researchers consider wetware is scientifically exciting - but developmental phase.

And she said there is minimal possibility of it substituting for the key component typically utilized with computer chips.

"Biocomputing should enhance without displacing – traditional processing, while also advancing disease modelling and decreasing laboratory animal utilization," she said.

Although the tech comes ever closer to actual uses, several scientists remain captivated by its science fiction roots.

"I remain a admirer of science fiction," he noted.

"Upon encountering a movie of science fiction, or a book, I always felt a bit sad because my life was not like in the book. Now I feel like I'm participating in the narrative, shaping developments."