1. jan_kammerer says:

According to various estimates, the amount of human memory is approximately from one with seven zeros to one with 21 zeros. If we assume that a single book of 10 printed pages contains 432,000 characters, then the human brain can store information equal to the volume of 23,000 to 300 trillion books.

If we compare human memory with computer memory, then the hardware is clearly inferior to us. The largest amount of memory in existing computers is about 10 trillion bytes (a number with 13 zeros) . The human brain, as scientists at Harvard University have found, can hold a number of bytes, expressed as a number with 8432 zeros.

2. oleg_osipov says:

It is not entirely correct to estimate the amount of human memory in bytes. Human memory has an associative character. That is, ultimately, the amount of information that a person can remember depends very much on the coherence and generalizability of information.

It's hard to remember KAOHZHEZNGDSIF REORYEGRBLBLVI.

This will take up a new place in memory, but if it remembers associatively that it is

Two letters from the words Each hunter wants to know where the pheasant is sitting (this is a phrase for remembering the colors of the rainbow), and then two letters from the colors of the rainbow in English REd, ORange, YEllow, etc., then it is not difficult to remember KAOHZHEZNGDSIFAREORYEGRBLBLVI, and therefore this information takes up less space in the head.

That is, the question here is not how much space in the head, but how much and what information can be written in the head. And it can't be measured in bytes.

3. lalka_hallaka says:

The human brain is designed in such a way that it does not store information permanently. Literally in a day, you will forget at least 60% of what you saw once (without repetition). The brain can hold infinitely many fragments of different things that will gradually be forgotten. If you take an extreme case like “How many books can I learn by heart and be sure that I remember them from cover to cover and can reproduce them at every second, provided that I don't constantly repeat them”, then the answer is “A volume of war and peace may fit”.

4. mikhail_lyalin says:

1 / In 1956, the American psychologist J. Miller discovered in experiments with audio signals that the capacity of a person's RAM is about 7 information units (nkj.ru).

2/ In fact, the capacity of our memory is still unknown. It seems to me that the only limit that the brain will have is the memory capacity, but while it is still far from fully used, it is not known what it is. A person does not forget anything, the problem is remembering. (aif.ru)

5. vyacheslav_tomilchenko says:

I read somewhere that if you record video in HD format around the clock, the brain is able to accommodate such a video more than 300 years of continuous shooting.

6. a_i says:

I'll give you 2 links to a recent news item. The first is a news item in Russian, the second is a detailed article in English.

N+1: American scientists have concluded that the memory capacity of the human brain can be 10 times greater than previously thought. In their opinion, this indicator is measured in petabytes, according to a publication in eLife.

Salk News: Memory capacity of brain is 10 times more than previously thought. Data from the Salk Institute shows brainâ€™s memory capacity is in the petabyte range, as much as entire Web.

7. yuri_krivolapchuk says:

And what is the clock speed of its processor?

The trick is that a living organism has no division into a hard drive, RAM, processor, cache, etc. Nerve cells perform the function that they have at the moment. By the way, for reference: in engineering, “processors” are often referred to as flashed memory cells that perform the function of a switch. Therefore, calculating the volume of one or the other, sometimes even in technology, and even more so in a living organism, is absolutely useless.