Hand rubbing nuclear fusion live in the wilderness

Chapter 178 Binary

After starting the vertical water wheel, Han Yuan started up another generator in the power studio, and then returned to the workshop next to the living room.

After taking out a stack of paper and a charcoal pencil from the cabinet, Han Yuan said:

"Everyone is familiar with computers."

"The invention of the computer is one of the most important inventions in the history of human development."

"It is precisely because of computers that we can perform high-speed calculations and process data, saving a lot of brainpower and labor."

"But before we can make a computer, we have to understand its operating principle and related structure in order to make it."

"Just like a generator uses the law of electromagnetic induction to generate electricity, it is necessary to know why a computer can calculate data."

While talking, Won wrote a line on the paper: 'How does the computer know numbers'.

"Since human beings have intelligence, calculation and numeracy seem to be integrated into human genes."

"Whether it is the bartering of primitive tribes, or the trading of things in ancient times, or modern finance, calculations and numbers are inseparable."

"The same goes for computers."

"If you want to know how a computer understands numbers, you must first understand one thing, base."

As he spoke, Han Won wrote two more lines on the paper: "Decimal, Binary."

"For the decimal system, everyone must be familiar with it."

“在普通的日常生活中，人类采用最广泛的运算方式的是十进制计数法，即用0、1、2、3、4、5、6、7、8、9这十个数码来表示数，逢十进一。”

"But for a computer that uses electricity as a source of energy, it can't recognize that many numbers."

"Because the current can only show two states of on and off, either power on or power off."

"So we can only use binary to represent numbers."

"And the so-called binary means that only two numbers, 0 and 1, are used to represent it, and every two becomes one."

"Using 0 to represent power-off and 1 to represent power-on is the basis of why computers can calculate data."

Most of the people in the live broadcast room knew what Han Yuan was going to say, and they all started shouting.

[Primary school students know both decimal and binary. 】

[Let's make it more complicated, anchor, this one is too simple. 】

[Decimal can add, subtract, multiply and divide, but binary can only add and subtract, right? 】

[Anyone else remember how to memorize the multiplication table? 】

[One seven gets seven, two seven 48, March [-]th Women's Day, May [-]st Labor Day, Children's Day [-]st.]

[Binary is actually rubbish, artificial intelligence will never be born, ternary is the kingly way. 】

[Speaking of which, I know how to calculate in decimal, how to calculate data in binary, can the anchor talk about it? 】

[As a computer student, I said that the question above is too simple. 】

Seeing the simple barrage, Han Yuan smiled and didn't care about making noise from the audience.

It's simple now, but later on, most of the people who call it simple can't understand it.

After writing down a string of numbers on the paper, Han Yuan continued:
"In the decimal system, after 9, the tens digit is entered, and the tens digit is entered into 1, and then the ones digit is 0 starting from 10, and so on for the millions and millions after that."

"But in binary, the largest number is 1. After 1, it must start with 0 again. That is to say, there are no numbers from 2 to 9 in binary, only 0 and 1."

"For example, the maximum number in decimal is 9, and it must start from 9 after 0. That is to say, 9 after 10, so 11 in binary is equivalent to 99 in decimal, and you must start over and add a new one."

"As for binary operations, in fact, like decimal, binary also has addition, subtraction, multiplication, and division."

"And compared to decimal, binary addition, subtraction, multiplication, and division are simpler."

"Because there are only fixed operations in binary, for example, 'addition' is a fixed four."

As he spoke, he showed the numbers he had just written down on paper to the audience in the live broadcast room.

【0+0=0、0+1=1、1+0=1、1+1=10。】

"These four calculations are addition in binary."

"To give a simple example, if I want to calculate the number 3 through binary, the principle is that 1+1=10, 10+1=11, and 10 is 2 in decimal."

"And the final expressed binary number 3 is '11'."

"These are very simple things and easy to understand."

Seeing what Korean Won wrote on the white paper, many viewers became confused.

Although the description of Korean won is very simple, many brain cells will be burned to death if you want to quickly convert the decimal calculation in the brain to binary.

[Stupid, who told the anchor to make it more complicated, come out and get beaten! 】

【好家伙，3是11的话，那4又是多少？5呢？6呢？】

[Binary is actually rubbish, artificial intelligence will never be born, ternary is the kingly way. 】

[If you don't understand, look here! 0 in binary is 0, 1 in binary is 1, 2 in binary is 10, 3 in binary is 11, 4 in binary is 100, 5 in binary is 101, 6 in binary is 110, 7 in binary is 111, 8 in binary The binary number is 1000, the binary number of nine is 1001, and the binary number of 10 is 1010. It's very simple. If you think about it carefully, you will know how to calculate it. 】

【understood! 】

[Thanks for the rules upstairs, I seem to understand it too. 】

[It seems that I understand it, but I don’t understand it. 】

[This is all addition, I want to ask how to calculate multiplication and division in binary? 】

[I suddenly thought of a sentence, there are 10 types of people in this world, those who understand binary and those who don't. 】

[Upstairs you only mentioned two kinds, how about eight more? 】

[The ratio of 10 upstairs, 10 is 2. 】

【? ? ? ? ? ? 】

Seeing the barrage on the virtual screen, Han Yuan smiled and said, "The binary calculation is actually very simple, even simpler than the decimal system."

"What's more, after I manufacture the computer, when I write a binary program, I can give you a detailed explanation of the conversion between binary and decimal."

"As for now, everyone knows that binary is the arithmetic system of computers. Next, I will start to manufacture computers."

Putting down the paper and pen in his hand, Han Yuan got up and went to the chemical laboratory, ready to start work.

When he came to the laboratory, he took out some raw materials from the storage room.

There are silicon carbide prepared during the last first-level mission, copper wire, aluminum wire, and silicon dioxide with high purity.

With these materials, Han Yuan came to another laboratory.

After putting all these materials on the table, Han Yuan said:

"Actually, before the live broadcast started this time, I had already considered the type of computer to be manufactured this time."

"In the history of human development, the electronic tube computer is the first generation computer and the easiest computer to manufacture."

"The electronic tubes are connected in series one by one, and the control and operation are performed through switches such as resistors and relays."

"These parts can be manufactured with my current industrial level."

"Unfortunately, tube computers can't do millions of calculations per second."

"So I can only put the choice on the second generation computer 'transistor computer'."

(End of this chapter)