46.

"Finishing the 8-digit adder is just the beginning, and we have a lot to do. ”

Cheng Li began to take over the right to speak and happily discussed with the people around him.

Although he has fully mature theoretical and practical experience on the earth, this is the cultivation world after all, and Cheng Li still has a lot to learn and a lot of work to do to make a spiritual power computer that is truly suitable for this world.

For example, the Taiji Stone, Yin Sheng Stone, and Yang Sheng Stone that Fang Xiaochun used to improve the spiritual power computer before, he didn't know at all.

At this time, all the researchers in this secret meeting are also in line with Cheng Li's appetite.

After continuous discussions with them, Cheng Li touched the analogy and inspired more inspiration.

"After making the addition machine, of course, I will make another subtraction machine. ”

After Cheng Li finished speaking, he demonstrated in public how to use the addition machine to improve and calculate subtraction.

"As long as this is the case, using the 'complement' and some clever steps, you can achieve subtraction operations through the addition machine, and you can get the correct result without borrowing. ”

Cheng Li cleverly used the principle of "complement" to achieve the subtraction effect with an addition machine, which amazed the people around him.

"Wonderful, it's really a touch bypass, I didn't expect subtraction to be achieved in this way. ”

The principle of "complement" mentioned by Cheng Li is actually not complicated, but just a trick made by using some simple mathematical laws. As soon as you say it, everyone basically understands, just like a layer of window paper, as long as it is pierced, it is nothing.

"With the subtraction machine, the basic arithmetic unit is formed, and then the next step is to make the trigger. ”

Cheng Li wiped his sweat and said, the efficiency of this group of cultivators surprised him.

Originally, he thought that it would be impossible to tinker with an improved real spiritual power computer in one night.

However, after seeing the methods of these cultivators, he suddenly gained a lot of confidence.

Cultivators know how to do magic, for example, if you want to cut something, you can cut out the size you want with great precision, which is more accurate than the large machine tools on the earth. And you can get any shape, which is very convenient.

"Well, to make a trigger, you first need to have an oscillator. Cheng Li said to the people around him.

"Oscillator?"

"Well, an oscillator is a device that can send out yin and yang signals back and forth for a certain period of time...... I have a way of achieving this effect by building a special device, but it would be best if you had some special materials that you could do beforehand. ”

After such an explanation, Fang Xiaochun's eyes immediately lit up, and he said without thinking: "With such a material, the indefinite stone should be able to achieve the effect you said." ”

"Indefinite stone?"

"Well, the full name of the indefinite stone is called the Yin and Yang Indefinite Stone. ”

Fang Xiaochun said as he turned out a black and white stone from the pile of materials.

Then she held the stone in her hand and said, "As long as the spiritual power is poured into this stone, this stone will stimulate the yin spiritual power and yang spiritual power back and forth at a fixed frequency. ”

Sure enough, Fang Xiaochun poured his spiritual power into the Indefinite Stone, and the black and white stone, with the same effect of breathing, would emit black light for a while, and white light for a while.

"Well, then this stone can indeed be brought to the oscillator, but this frequency is slower, can it be faster?"

An oscillator is an electronic component on Earth that can constantly cause the circuit to turn on and off. The time between two circuits turned on is called a cycle.

Hence the concept of clock frequency, the number of cycles that an oscillator can excite per second is called the clock frequency.

In this way, you may not be very clear.

But if you talk about the CPU frequency, it must be familiar.

CPU clock frequency is the clock frequency of the oscillator.

Therefore, the oscillator is a crucial part of the CPU, which can affect and even determine the computing speed of the CPU to some extent.

That's why Cheng Li attaches so much importance to it.

The reason why the oscillator is so important is that in the latch, the reset of the data to zero is controlled by the oscillator.

When the input data of the oscillator becomes 1, the data is saved, and when the input data becomes 0, the data is reset to zero.

Therefore, it can be said that every time the oscillator completes a cycle of oscillation, the logic circuit can complete a state change, which is equivalent to completing an operation.

Therefore, the faster the clock frequency of the oscillator, that is, the main frequency, the more operations the CPU will complete per second, and thus the faster the operation speed.

Fang Xiaochun heard that Cheng Li felt that it was not fast enough, and said a little disapplausively.

"Yes, as long as the spiritual power I input is strengthened, the frequency of this irregular oscillation will be accelerated. ”

Sure enough, as soon as Fang Xiaochun increased the input of spiritual power, the black-and-white light emitted by the indefinite stone became faster and faster, and he couldn't even see the black-and-white light switching clearly in the back.

However, when this indefinite stone accelerates to a certain extent, it seems to stabilize and will not speed up any further.

"The indefinite stone is the same as the spirit stone, and it is also divided into grades. This is a low-grade indefinite stone, and after filling the spiritual power, it can oscillate 1,000 times in almost 1 second. The medium-grade indefinite stone can oscillate 10,000 times in 1 second, the high-grade indefinite stone can oscillate 100,000 times in 1 second, and the best indefinite stone can oscillate up to 1 million times. ”

Cheng Li nodded: "The vibration frequency of 1 million times, although it is still a little slower, but in the initial stage, it is almost enough." ”

Fang Xiaochun's eyes widened and said: "1 million times is still slow? This uncertain stone is because it changes too quickly, it is rarely used in ordinary times, and only the refining of some special magic weapons will use this kind of stone." ”

"Of course, it's better to do a billion times, pretty much. Cheng said as a matter of course.

Everyone around listened to Cheng Li's words a billion times, and they all felt that it was a fantasy, and they didn't believe it at all.

Cheng Li had no choice but to pull out the banner of Xuantian and said: "I am in Xuantian, and I have seen an oscillator that can oscillate 1 billion times in 1 second. ”

The group looked at each other, and they couldn't help but feel that Xuantian was so awesome.

ON EARTH, BY THE BEGINNING OF THE 21ST CENTURY, THE MAIN FREQUENCY OF THE CPU HAS BASICALLY REACHED THE LEVEL OF 1GHZ, AND 1GHZ IS EQUIVALENT TO 1 BILLION HZ, THAT IS, 1 BILLION OSCILLATIONS PER SECOND.

FOR EXAMPLE, IN 2017 BEFORE THE CROSSING OF CHENGLI, THE CPU MAIN FREQUENCY BASICALLY REACHED THE LIMIT OF 4GHZ, THAT IS, 4 BILLION OSCILLATIONS PER SECOND, AND BECAUSE THE MAIN FREQUENCY REACHED THE LIMIT, THE CPU CHANGED TO MULTI-CORE DEVELOPMENT.

The world's best indefinite stone, although the clock frequency is only 1 million HZ level, I don't care too much about the process.

The main frequency of the CPU, although it has a great impact on the speed of operation, is not the only influencing factor, there are many other important factors that affect CPU operation, there is an oscillation speed of 1 million HZ, which should be enough for the first spiritual computer that Cheng Li wants to build now.