Neuron is not transistor

“The main unit of a biological computer is a nerve cell, or neuron, which is internally very different from a (computer chip) transistor.

Of course, the code through which neurons exchange information resembles the code based on a sequence of impulses used in digital computing machines, but an individual neuron is a much more sophisticated unit for processing information than a transistor.

Instead of just three connections with other components, a single neuron can have tens of thousands. A neuron operates more slowly than a transistor, but it has achieved much more in terms of miniaturization, which has been the main focus in the electronics industry over the past two decades.

This is easily evidenced by the fact that the human brain contains approximately 10 billion neurons, whereas a skull could only hold a few hundred transistors.” – R.Dawkins