Wang Xuexin has some understanding of "Turing machines".
This is not something in a textbook, but when I was learning the basics of computers, the "extremely smart" university lecturer often lamented: "Many things in this world have theories after first creating entities, but computers are the only exception.
, it has a theory first and then invents and creates the entity..."
This theory refers to the "Turing machine".
"Turing machine" was not originally called "Turing machine". It was a paper published by Turing in a mathematics magazine. The title of the paper was "On the application of digital computers in decision-making problems".
It talks about problems in real life, which can eventually be converted into numbers and solved by machines. This is why the later entity of computers can also be said to be artificial intelligence.
These are things Wang Xuexin doesn’t know. He only knows about “Turing machines”.
Turing machine is a name given by later generations to commemorate Turing's theory elaborated in this paper... Turing machine is not a machine, it is a theoretical concept that imagines a machine with reading, writing, storage and processing instructions.
machine.
If we talk about this Wang Xuexin, there is no problem, because this is the hardware system of the computer, but it has not been implemented yet.
This gave Wang Xuexin the confidence, and he replied: "Yes, Mr. Turing, your article touched me a lot. You theoretically proved that it is feasible to use machines to solve real-life problems. This is also
One of the reasons why we are determined to develop relay computers. It can be said that our research and development is guided by you, but we don’t know..."
"It's just that you don't know that you are walking the same road as us!" Turing laughed happily: "And you are even ahead of us and more advanced than us!"
Wang Xuexin quickly replied: "No, no, we haven't succeeded yet, but yours can already decipher the code!"
Wang Xuexin is telling the truth, because he actually has nothing.
Turing looked at the bomb-proof hole where Wang Xuexin was, and sighed: "No, Comrade Leader, you are only limited by conditions. If you can have a better environment or concentrate on research and development... I believe you will get there faster than us.
many!"
Wang Xuexin secretly felt ashamed. Even if a modern man like him learned advanced knowledge, he still felt that he was not enough in front of a genius like Turing.
"So..." Turing changed the subject and said, "Comrade leader, I want to hear your opinion on the paper! Is it possible to realize it?"
"Of course!" Wang Xuexin replied affirmatively: "In fact, we are already on the road to realization, aren't we? However, if we want to truly realize and make this kind of machine available to everyone, I think there is still a long way to go.
Way to go!"
"Everyone can use it?" Turing's eyes widened. He just wanted to realize this kind of machine, but he never thought that it could develop into the problem of "everyone can use it."
"Of course!" Wang Xuexin said: "Isn't that what your paper means? There is a machine that can establish connections with the real world and solve some complex tasks by operating pure mathematical symbols and logic. One day, of course,
Only when everyone uses this machine can it realize its value, instead of just lying in the room and deciphering military codes for the war service!"
Turing seemed so stunned by Wang Xuexin's idea that he stuttered a little: "It, it... but it is too big!"
"One day it will become smaller!" Wang Xuexin said: "Just like we used relays instead of mechanical units, its size has been reduced several times! One day, I believe it will be small enough to be carried around.
, just like today’s radios!”
In fact, modern laptops are much smaller than the radios of this era.
But this was already hard for Turing to imagine. He was so excited that his face flushed like a child being praised, and his eyes were filled with anticipation.
After a while, he calmed down and said: "But, Comrade Leader! I think if it wants to develop to that point, at least a few problems need to be solved, such as... it is not something that ordinary people can operate!"
Of course Wang Xuexin understood what Turing meant.
Computers at this time were not like modern computers. This
Anyone who can operate a computer can be said to be an expert... because its components only have two states: "power on" and "no power", and the data stored are only "0" and "1", and the operation is based on the logical relationship of the data.
When plugging and wiring, ordinary people look confused and have no idea what it means.
In fact, let alone ordinary people, even the two Chinese mathematicians sent by Wang Xuexin to study with Qiong still seem to understand it.
If so, is it possible for this kind of machine to enter the homes of ordinary people and become available to everyone?
But Wang Xuexin was very confident. He replied: "I don't think they need to operate like us, Mr. Turing! Just imagine, according to your theory, machines can solve real-life problems, so why don't we use machines to solve input and output problems?
Problem? To put it simply, it is to accept the input method that ordinary people are accustomed to, such as decimal numbers, and the machine will convert them into binary, and after the calculation is completed, it will be displayed back to decimal for ordinary people..."
Turing couldn't help but nodded when he heard this, and praised: "It's a very good idea. This is completely achievable in theory!"
Of course it can be done, and it's not difficult at all if it's just decimal numbers.
According to the theory of "Turing machine", any real-life problem can be converted into a mathematical problem and solved. That is a problem of further conversion.
"My visit this time is actually related to this issue!" Turing said as he took out a document from his bag and said: "Comrade leader, I put your floating point calculation in "Christopher"...it's mine
We have tried it on a mechanical computer, and it can indeed improve accuracy and make full use of storage units, but there will be a lot of wiring that is much more complicated than fixed-point arithmetic during calculations, which will cause us to have a lot of problems in operation!"
Wang Xuexin flipped through the file and found that it was actually Turing's sketch.
Wang Xuexin found that he couldn't understand it at all, because it drew the wiring method of floating point calculations, just like circuit diagrams.
Turing pointed at the sketch and introduced: "This is the order code! I think floating point operations need to be of order, and then perform mantissa operation, and then consider rounding and overflow issues, and also perform standardized storage.
..."
Wang Xuexin was like listening to a book from heaven. Although he knew about floating-point arithmetic, he had never actually used it, and the computers of this era were calculated using wiring methods.
Just when Wang Xuexin looked confused and embarrassed and didn't know how to answer, the system dinged: "The solution is 100 million military coins. Do you want the host to buy it?"
Wang Xuexin said "fuck" in his heart, this broken system really knows how to take advantage of others! Knowing that he had to buy at this time, he opened his mouth and asked for 100 million...