Bright Sword Military System

Chapter 1323 Mercury Delay Line Memory
Under Wang Xuexin's "confusion", Ban and Chen were completely convinced by Huaxia's advanced technology. They have never been so excited as they are now... It's not that they don't want Huaxia to be more advanced, but they are learning. In the process of feeling the gap with the great powers, I feel inferior, and now I suddenly find that Huaxia is at the top of the world and is unique. That kind of ecstasy cannot be described in words.

Compared with relays, the research and development of electronic tube computers is not much different. Generally speaking, all relays are replaced with electronic tubes, and the others are basically the same.

The reason why I say "basically the same" is because Wang Xuexin did not intend to simply upgrade the relay computer to a tube computer, he wanted to achieve a span...

As I said before, Wang Xuexin has the skills to know what to do, so why should he go up step by step step by step?
It is well known that the world's first computer was the electronic tube computer ENIAC, but few people know that when ENIAC was invented, there was actually a more advanced computer ready to go online. This computer was called EDVAC.

The reason why EDVAC failed to become the first computer was only because the military was anxious to have an electronic tube computer go online, so it could only hand over the ENIAC, which could be said to be "backward" at that time but was successfully developed and usable...

The most fundamental difference between the two is that the latter uses something called "mercury delay line storage" as a memory-assisted computer calculation.

If there is no such thing, the storage of data is just like Wang Xuexin's premise, which needs to use punched paper tape.

The inconvenience of using paper tapes to store is obvious. If there are too many paper tapes for data, there may be an astronomical number.

"Mercury delay line storage" is a good solution to this problem.

Wang Xuexin explained to them: "This thing is actually a column of mercury. Simply put, it uses the delay of sound propagation to convert electrical signals into sound, and spreads from one end of the mercury column to the other end, and the other end transmits the sound to the other end. The signal is converted back to an electrical signal. If the propagation time takes one second, it is equivalent to storing the data for one second!"

The two were stunned when they heard Wang Xuexin's words. After a while, Ban Haolin asked: "Head, if you only store it for one second...what's the use?"

"So we need to add a regenerator to it!" Wang Xuexin replied: "This regenerator can repeatedly input this signal to achieve the purpose of storing data!"

Ban Haolin still couldn't understand: "Leader, for this second of data...do we need to spend so much trouble?"

Wang Xuexin couldn't help laughing: "Do you know how much data can be stored in this second?"

"How much?" Ban and Chen asked in unison.

"1000!" Wang Xuexin replied calmly.

This number instantly frightened Ban and Chen...

"One... a thousand!"

"Can you save that much?"

It is really hard to imagine things in technology sometimes. How can one thousand bits of data be stored in one second?But it is actually a pulse device installed at this end of the mercury column. This pulse device can emit a thousand sound waves per second... To be precise, it does not emit a thousand sound waves, but chooses whether to emit or not according to "1" and "0". Transmit, that is, sound means "1", and no sound means "0".

"Do you know what this means?" Wang Xuexin asked: "This means the data that can be stored in one such mercury tube. Traditional storage requires 1000 relays or 1000 electron tubes, and a large amount of paper tape is required for input!"

After thinking about it, Ban and Chen thought it was the same. The comparison between the two is obviously that the storage method of mercury tubes is more economical and reliable, but it is still hard for them to imagine that it is still possible...

After a long silence, Chen Jiefeng said hesitantly: "Commander, although we... don't want to pour cold water on you, but we don't have the diamonds to dare to take on this porcelain job. We don't even have a clue about this matter. , may not be able to do it!"

"Yes, Captain!" Ban Haolin also said: "We all sound like a bible, let alone make this thing? Besides, we don't have this equipment in Huaxia..."

"I didn't ask you to do it!" Wang Xuexin said, "You just need to improve!"

"Improve?" Chen Jiefeng heard the meaning of Wang Xuexin's words: "Head, what do you mean, this thing already exists?"

Wang Xuexin nodded.

Although the electronic tube computer was invented relatively late, the "mercury delay line memory" was invented during World War II.

"This kind of memory is used on the radar display!" Wang Xuexin said, "And our Huaxia just bought a radar production line from Yingjiang..."

This is actually a kind of filtering device unique to radar. Simply put, it stores the reflected signal through the memory, and cancels out the sound waves reflected by stationary objects, and the rest is the sound wave reflected by moving objects.

In this way, only the position of the moving object is displayed on the display screen. Unexpectedly, this device will become a storage device of the computer.

Ban and Chen cheered immediately after hearing this.

If this kind of memory is ready-made, wouldn't it be enough to use it directly on the computer as a storage unit?

But it's not that simple.

Wang Xuexin added: "The problem is that the storage unit on the radar is relatively short. We need a longer mercury column. The length of the mercury column is best grasped within one second of the sound wave transmission time. If it is too long, it will cause too much signal loss and cannot be received correctly. .In addition, the memory of the radar does not have a regeneration device, we need to design a regeneration circuit, that is, to input the signal received by the receiving end as the input signal again!"

"These are not difficult!" Ban Haolin said confidently: "If we can't even do these things, we won't be ashamed to see the regiment leader, and we'll go home and grow sweet potatoes!"

After speaking, several people laughed.

This is indeed not a difficult task. The point is that Huaxia can produce it itself and has a production line, so it is very convenient to improve it. For example, to lengthen the mercury column, you only need to contact Su Liguo and make a request.

Looking at the backs of Ban and Chen leaving, Wang Xuexin couldn't help thinking about a question: the development of computers is called the third industrial revolution in modern times.

The reason why the modern eagle sauce can sit on the top spot in the world, in addition to military reasons, is not unrelated to it leading the third industrial revolution.

Now, what if Huaxia leads this industrial revolution?

(End of this chapter)