There’s nothing especially new in this latest paper on neuromorphic computing and memristors, however it does a very good job of describing how these new computers might work. From a Nov. 30, 2020 news item on phys.org (Note: A link has been removed),
In a paper published in Nano, researchers study the role of memristors in neuromorphic computing. This novel fundamental electronic component supports the cloning of bio-neural systems with low cost and power.
Contemporary computing systems are unable to deal with critical challenges of size reduction and computing speed in the big data era. The Von Neumann bottleneck is referred to as a hindrance in data transfer through the bus connecting processor and memory cell. This gives an opportunity to create alternative architectures based on a biological neuron model. Neuromorphic computing is one of such alternative architectures that mimic neuro-biological brain architectures.
A November ??, 2020 World Scientific (Publishing) press release (also on EurekAlert and published on Nov. 27, 2020), which originated the news item, continues with this fine explanation,
The humanoid neural brain system comprises approximately 100 billion neurons and numerous synapses of connectivity. An efficient circuit device is therefore essential for the construction of a neural network that mimics the human brain. The development of a basic electrical component, the memristor, with several distinctive features such as scalability, in-memory processing and CMOS compatibility, has significantly facilitated the implementation of neural network hardware.
The memristor was introduced as a “memory-like resistor” where the background of the applied inputs would alter the resistance status of the device. It is a capable electronic component that can memorise the current in order to effectively reduce the size of the device and increase processing speed in neural networks. Parallel calculations, as in the human nervous system, are made with the support of memristor devices in a novel computing architecture.
System instability and uncertainty have been described as current problems for most memory-based applications. This is the opposite of the biological process. Despite noise, nonlinearity, variability and volatility, biological systems work well. It is still unclear, however, that the effectiveness of biological systems actually depends on these obstacles. Neural modeling is sometimes avoided because it is not easy to model and study. The possibility of exploiting these properties is therefore, of course, a critical path to success in the achievement of artificial and biological systems.
Here’s a link to and a citation for the paper (Note: I usually include the link as part of the paper’s title but couldn’t do it this time),
Memristors: Understanding, Utilization and Upgradation for Neuromorphic Computing [https://www.worldscientific.com/doi/abs/10.1142/S1793292020300054] by Mohanbabu Bharathi, Zhiwei Wang, Bingrui Guo, Babu Balraj, Qiuhong Li, Jianwei Shuai and Donghui Guo. NanoVol. 15, No. 11, 2030005 (2020) DOI: https://doi.org/10.1142/S1793292020300054 Published: 12 November 2020
This paper is open access.