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Friday, October 6, 2023

Neurosynaptic Chip and Cognitive Computing


The idea of modelling the human brain has captivated and confounded scientists for a long time. The brain, a spongy mass the size of a grapefruit, is a remarkable organ. Consuming just 20 watts of power, it can comprehend complex concepts, explore the world we live in, and produce incredible things—from sophisticated machinery to beautiful music.

The way a human brain functions is more akin to an unstructured jam of signaling between organic matter cells, or nodes, instead of a structured processor core running on precision clocks.  Not surprisingly, imitating the brain has proven to be incredibly difficult. Conventional computers don’t even try. They use linear logic and hard-wired circuitry to calculate, send messages, analyze data and organize knowledge, consuming enormous amounts of power while failing to match the brain’s protean capabilities.

A neurosynaptic chip, also known as a cognitive chip, is a computer processor that functions more like a biological brain than a typical CPU does. Unlike cognitive computing, which is made to emulate the thought and learning of humans through software, neurosynaptic chips are made to function like human brains on the hardware level.

Here’s how IBM describes the chip's architecture:

“IBM’s brain-inspired architecture consists of a network of neuro-synaptic cores. Cores are distributed and operate in parallel. Cores operate—without a clock—in an event-driven fashion. Cores integrate memory, computation, and communication. Individual cores can fail and yet, like the brain, the architecture can still function. Cores on the same chip communicate with one another via an on-chip event-driven network. Chips communicate via an inter-chip interface leading to seamless availability like the cortex, enabling creation of scalable neuromorphic systems.”

Fascinating, isn't it? And that's what inspires and drives me to continue writing as I learn and explore such futuristic possibilities.


Source: IBM, Electronic Design, The Intelligence of Information


 

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