How many nuclei does the human brain correspond to? How fast is it like a computer?

Copy a paragraph of the answer to you, anyway, the current level of computers can't surpass the speed of the brain.

Human beings have about tens of billions of brain cells, each brain cell has about hundreds of cranial nerves, each nerve has about hundreds of synapses, each synapse has hundreds to thousands of proteins, a brain cell is about the same as a large computer, and a synapse is about the same as a chip of a computer. It can be easily deduced that the human brain is equivalent to hundreds of billions or trillions of chips.

The largest parallel computer in the United States, the White ASCI in the United States, has only 8,000 chips, which is about 100 million times different from the human brain, that is, 8 to 9 orders of magnitude.

The computing power of computers is generally calculated in terms of how many addition operations can be done in a second, and the fastest is currently Japan's "Earth Simulator", which is 4 billion times per second.

Because the human brain is a super huge parallel computing system, all synapses and all proteins on each synapse can move at the same time in an instant, and the proteins are only a few nanometers apart, and the current can run hundreds of billions of times in a second at this distance, and the human brain's computing speed is indescribably large, about 1 followed by 27 zeros to 30 zeros. You know, 4 billion times, it's just 4 followed by 9 zeros, a difference of about 20 orders of magnitude.

So, if computers were to simulate the function of the human brain, it would take about 100 years to achieve it at the current rate of research. Because according to the famous "Moore's Law", the computing speed of computers doubles every 18 months, that is, about twice every year, and it will take more than 100 years to increase by 20 orders of magnitude. I will definitely not see it in this life.

In addition, there is another factor that is not considered, the computer is in two circuit states, on or off, and there are many kinds of brain cells, cranial nerves, synapses, proteins, and amino acids that make up proteins, and the movement is far more complex than the circuit. Therefore, the time for humans to figure out the function of the human brain has to be postponed.

The human brain is a dual-core processor, the left brain.

One nucleus, and the right brain is the other. But the main frequency is MHz, so the computer processor.

It can't catch up with the human brain.

There are so many unsolved mysteries in the world.

Humanity alone has too much confusion. Many of the mysteries of the human body exist in the brain. The brain is an organ that confuses people, especially in relation to life and death, consciousness, sleep, hallucinations, memories and other issues, which have always puzzled people.

Eighty percent of amputees have experienced feelings from amputated limbs, including warmth, longing, stress, and pain, and those who experience this phenomenon (known as "hallucinatory limbs") always feel that the amputated limb is still present. One explanation is that the nerve area of the severed limb reconnects with the spinal cord and continues to send signals to the brain as if the missing limb were still there. Another possibility is that the brain is a transmission "hard wire" that manipulates the remnants as if it were a perfect body – meaning that the brain still retains the blueprint of what it did when the limbs were able.

The human brain is divided into the left brain, and the right brain should be dual-nucleated! As for how fast the calculation is, you are a master if you can calculate a three-digit * three-digit answer per second.

The human brain is far less fast than a computer, but if you don't use your brain, you don't use a computer! Hehe.

Living things and dead things are incomparable, and if you want to compare, the brain is not as fast as in a computer.

Human brain data: The human brain has a total of about 1.4 billion neurons, only some of which are fully developed, and the rest are dormant or rarely used. Fully developed neurogens, with an average of about 10,000 to 20,000 synapses per neuron.

Each neuron takes less than a second to react from receiving a signal to being fired to emit a signal.

If you use a computer to simulate the mechanism of action of neurons, the data is: each neuron, let's say it has 10,000 synapses, and it takes 50 CPU cycles to process one synaptic change. Then, a CPU processing speed of 5G seconds can only process 50000000000 (50*10000) = 10000 neurons per second.

Let's go back to the human brain: Suppose that 2% of all neurons in the human brain are fully developed, that is, 28 million; In the middle of fully developed neurons, the active neurons per second are 10%, that is, 2.8 million, and these 2.8 million neurons can respond 10 times per second, then, if the computer is used to calculate, and the speed is synchronized, the speed of the computer is required: 2800000*10 10000*5g=14000g second processing speed.

In 2014, an article published in Nature said:

Scientists analyzed the brain of a mouse, which has about 13 neurons, and it took up to 1 terabyte of data to analyze these 13 neurons! Scientists have shown that the human brain has about 86 billion neurons, so it is equivalent to 6.6 billion terabytes of hard disk capacity, assuming that a computer's hard disk storage is 2 terabytesOur brains are equivalent to 3.3 billion unitsThe amount of hard disk storage on your computer!

<> computers are capable of making complex decisions in thousandths of a second. It also takes at least a fifth of a second for a person to make a very simple choice. Our human reaction times are not only slow, but also vary significantly in the range of a few hundred milliseconds.

Is this because our brains are poorly designed and prone to random uncertainty? Flies are all very fast and precise in their responses to external events, but in laboratory measurements, the flies' neuronal responses also drop to only a few milliseconds. The arbitrariness of our reaction time doesn't look like a built-in feature.

Even if we ask our brain to react faster, the brain will deliberately procrastinate.

Massively parallel networks.

Why is this happening? Unlike computers, our brains are massively parallel in organization, running millions of independent processes simultaneously. Our brains have to do this because they are not designed to perform a specific set of actions, but choose from a large number of alternatives that we are in in an environment that simply can't**.

From an evolutionary point of view, it's best not to trust anything and people. Therefore, before each action, the brain must work to generate a large number of possibilities. It's amazing how much the brain can do this in a fraction of a second.

But why is there a change? Because there can only be one winner at any one time in the brain, otherwise our actions will be chaotic. In order to ensure fair competition of all kinds of "possibilities", the competition must be run in the shortest possible time, and the time required will depend on the nature and quality of the competitor's field and therefore also on variability.

As strange as it may sound, the distribution of human reaction time between different tasks and different people, has repeatedly shown that the "race" model is very well adapted.

The benefits of evolution.

What tells us about decision-making in the human brain? It reminds us that the brain doesn't "make up its mind" until a few hundred milliseconds before each action, and that the plan doesn't come up until the moment it's executed. The brain, as a very "democratic" place, allows for the existence of "voices" of various possibilities, but these "voices" can only have a say in the time allowed.

This delay is benign and stems from a deep suspicion of pre-planning, which precludes any option well in advance of the expiration of the action. Survival Evolution is a long game, and the only reliable rule is that there are no other reliable rules.

The programmed behavior of machines is just not flexible enough to adapt to more special situations and not measure all the factors because humans do this naturally and easily. The only world that computers can take over is a simple and rigid world that is obtained from reality.

It is significantly inferior to the CPU because it is optimized for some mathematical operations.

The brain is definitely not as fast as the computer's calculation, because the human brain has only developed a little, and the speed of the computer is very fast, it can be calculated up to 10 billion times per second, and the highest frequency of the human brain is 1000 times per second.

Nowadays, science and technology are very developed, things are becoming more and more intelligent, and the computing power of computers and CPUs is far greater than that of many of our ordinary people, but I believe that the human brain will further develop stronger potential in the future.

1.It's impossible to say (but it's certainly 10,000 times faster than the human brain), and some (giant) computers are designed to calculate, and their computing range is higher than that of home computers. And now computers are constantly improving and innovating (the range of numbers calculated is larger and faster than the previous computers).

But it goes without saying that computers are faster than the human brain, (after all, computers were also invented by humans). People invented it to be more productive. to make up for what the human brain can't achieve.

So the two coexist.

If you look at the ability of the brain nerve source, even the brain-dead person has at least 14tps, and the normal situation is about 30tps! It is equivalent to 10,000 times that of P4 3G, which is about 500 times that of today's high-end home computers. Although people's calculation accuracy is not as good as that of computers, they often make calculation errors!

However, the computer system is a chemical signal, and the current technology has not yet been able to study the mechanism of the brain! Therefore, so far, it has not been able to effectively simulate the operation mode of the brain, and in many fields, computers cannot replace the brain!

The human brain is thousands of times faster than the computer, a man's NetEase blog, the dream of flying, and the nonsense of guessing...Whether the computer is fast or the human brain is fast, in terms of the speed of calculation, of course, the human brain is fast, this is already a very clear question. There are about 1,000 billion human brain cells.

The answer to this question cannot be calculated.

This one... It depends on your computer's CPU performance.

This is n times that is not easy to compare.

Probably much, much stronger.

The simplest example, self-driving cars and people driving cars, is too different.

You see what it is going to be, let's talk about that one example:

Reach for a cup on the table and drink

Needless to say, there is almost no one who can't do it, except for the visually impaired and the brain-impaired.

But do you know the brain process behind this action?

1.Both eyes acquire two bitmaps with a resolution equivalent to that taken by a 5 1 billion pixel camera.

2.Neural signal data is transmitted to the brain, and the spatial orientation of the cup relative to the person is calculated by 3D modeling on the binocular visual axis.

3.The degree and sequence of contraction and relaxation of about 600 pieces of skeletal muscle and trillions of skeletal muscle cells in the whole body at each time point were calculated.

4.The data is output to the whole body, drink water.

If you change it to a computer, making such a string of calculations is a trillions of calculations, right?

And all this calculation is done in a split second, in less than a second, and not counting the time loss in nerve conduction.

In fact, this is also a big bottleneck in robotics. If there is no calculation method of the neural network of the human brain, using traditional pure logic algorithms, the robot cannot be built, but the action of such a robot to carry a cup requires a supercomputer-level amount of calculation.

A complete brain is far more numerous than the CPU, and for example, riding a bicycle requires tens of thousands of muscles mobilized by the brain, which must be coordinated with each other and balanced. Coupled with the information received by the eyes, ears, etc., it is simply unimaginable. But there is very little to memorize.

There may not be more than a USB flash drive.

The human brain will dream and fantasize, the main reason is that people are too confused, there are too many uncertain factors, they can't know the answer immediately, and they have to control all parts of the body, and the computer is very straightforward, because it is programmed by people, there should be no program ape specially edited and confused**! It is estimated that it cannot be made up.

Even the lowest earthworm has more computing power than any supercomputer in the world! Computing power does not refer to 325+416 who calculates fast!

This has been calculated abroad and is equivalent to a CPU with a clock frequency of 2.5 million GHz

The brain has far more instructions per second than a computer, but it is not as capable of remembering as a computer. Maybe the human brain doesn't have the memory of a computer.

The human brain is the most complex processor in the world. It is not comparable to the computer CPU, and the human cognition of the development of their own brain is still at a relatively low level. No one knows how strong a fully developed brain is.