Where do you get technical knowledge?

Question

IT education

This is a tech question.
How does a transistor work? - The Internet is full of information on this topic. A lot of quite (even unnecessarily) accessible, even for those who are not friends with physics and chemistry.
How are logical elements arranged? a little more complicated, but still simple.
We use the accumulated knowledge about transistors and their properties, and do all the known logical operations (again, using the Internet)
How to calculate? The degree of difficulty increases, but still manageable.
first you need an adder, but there are plenty of them on the Internet.
it's the same with subtraction.
How to make a calculator (microcomputer) - and here you can find available information - https://youtu.be/Cp4fI_i60No - in my opinion one of the most useful videos.
So, as you can see, the questions get more complicated.
But sometimes such things arise - but how can you run minecraft on this adder?
and how to make data entry not using switches?
but how to connect to the Internet, and how does a computer distinguish + from -?
And how are micro-instructions clogged?
in short, you understand
now they give very mediocre information.
they say there is a keyboard-bus-processor.
And what kind of tire? what is it in terms of physics? on what physical phenomena it is built, figs to you, you won’t even find this on the Internet.

Question for those who have many years behind them.
Is this method of teaching normal?
How are computer technologies studied in technical universities?
And what is the best way to get good technical knowledge?
After all, the device, for example, a microcontroller, as with a transistor, no one will explain to you! The internet won't help either. And even if the microcontroller also consists of simple parts, how and where to look for them?

in general, I'm confused)

Answer 1

in short, you understand

No. It's not clear)))
But the answer is Practice .

And what kind of tire?

It's not even physics, it's a nickname. A collection of electrical conductors with a common goal(s). https://ru.wikipedia.org/wiki/%D0%A8%D0%B8%D0%BD%D0%B0 What's so difficult?

After all, the device, for example, a microcontroller, as with a transistor, no one will explain to you!

I agree - NOBODY. There are millions of transistors. Therefore, they teach the simplest elements. First logic AND\OR\NOT. Then Adders, Decoders, Multiplexers, Triggers, DAC, ADC .... there are a lot of "bricks". It's like assembling a "Smart House" - I took a relay there, and put switches there.

And even if the microcontroller also consists of simple parts, how and where to look for them?

Answer: Practice . Although not entirely correct. A microcontroller is a small microcircuit. For example - https://www.chipdip.ru/catalog/ic-microcontrollers. It is necessary to look not for details for the microcontroller, but for a microcontroller for your needs. This is Practice.

Answer 2

Mankind invented writing a few thousand years ago just to preserve and transfer knowledge.

Answer 3

Simple arithmetic machines and adders were created by people, and we know the names of some of them.
And modern processors are created by companies that employ many engineers, and we know the names of those who work, and we can even single out individual people, but we can no longer give them all the credit for creating.
It is difficult to create a complex product from scratch, even with a crowd.
But you can create a simple tool, with which you can create a more complex tool, with which you can create an even more complex tool, with which you can create a product, on the basis of which you can create an even more complex tool.
For example, the same modern boards - they are designed on a computer, tested on a virtual emulator, and a more or less finished product is printed for a test in reality.
But it is clear that they are training on something simple. diodes, motors. And yes, it takes a long time.

Answer 4

and what the hell is this knowledge? They have no practical meaning if you do not work as an electronic engineer

Answer 5

read Harris' "Digital Circuitry and Computer Architecture"

Answer 6

So that after closing it, other elements fall into place again

Remove it from the DOM (remove).
Undoubtedly. When opening a document, we read cookies

var result = document.cookie.match(/info_window=([^;]*)/);
if (!result) {
  //И тут формируем окно, или просто показываем его
  //Если нужно значение куки, оно в result[1]
}

By clicking on the cross we write cookies

document.cookie = 'path=/'; //Чтобы во вложенных папках тоже видеть куки
document.cookie = 'domain=домены_1_и_2_уровня'; //Если куки нужны на доменах 3-го уровня
document.cookie = 'max-age=' + 24 * 60 * 60 * 365; //Скажем, на год
document.cookie = 'info_window=closed'; //А вот и оно — окно закрывали

Answer 7

getbootstrap.com/javascript/#alerts
you can store the marker in the cookie after showing, if there is no marker yet, we show the alert