On the way, Lin Fengjiao quietly glanced at Tang Huan, whose expression had eased a few times, and then opened his mouth with the courage to speak, "It's all because I brought Hu Yinmeng over and caused a lot of trouble." ”

"What does it have to do with you, I can only say that I am unlucky." Tang Huan waved his hand disappreciatively.

Lin Fengjiao breathed a sigh of relief gently, as long as his sweetheart didn't mind.

Because Tang Huan planned to take Lin Fengjiao to the United States for a few days after the Golden Horse Awards, when he returned to the apartment, Lin Fengjiao began to pack all kinds of items, such as scripts that needed to be read.

Soon, Jian Mingren, Shi Chongtang and others came to visit one after another.

Previously, through the parts airlifted from the headquarters of Zheru in the United States, Jian Mingren and they assembled 50 finished computers, so that the official statistics department of Baodao on the occasion of the birthday of the big man, to achieve office modernization, all relevant parties have obtained achievements and face, so the company's public relations is more like a fish in water.

"I would like to ask you to give a lecture at the university tomorrow to introduce the latest cutting-edge computer technology." Jian Mingren said with a smile.

Tang Huan pondered for a moment, the Beautiful Island incident will break out next month, any contradictions have a process of accumulation, and now there must be various signs, he really doesn't want to show his head too much in non-business places during this time period.

"What is there to introduce, I didn't say hello in advance, I didn't prepare relevant information." Tang Huan excused.

"In fact, it is a pretext to pull relationships, and it is a very good opportunity to expand our brand. If not to mention other benefits, at least it will help recruit some elite students into the company. "Jian Mingren is very enthusiastic.

As soon as Tang Huan heard this, he felt that it was the same reason, so he nodded, "Okay, then I'll go and brag tomorrow." ”

Everyone chatted for a while, and when they saw that the time was not early, they got up and said goodbye and left.

Since he was going to give a speech tomorrow, he had to prepare an outline, so Tang Huan asked Lin Fengjiao to help him bring pen and paper.

"Your gold pen was lost in the restaurant, let's use another pen first." Lin Fengjiao explained.

Tang Huan nodded, and began to think about the content of tomorrow's speech, the computer looks sophisticated, but it is inevitably boring to talk about, and I don't know what kind of level the college students here are, so I really have to put some thought into it.

When he was almost done, Tang Huan got up and walked into the bedroom gently, and saw Lin Fengjiao sitting at the head of the bed reading the script.

"Why don't you sleep yet, the Golden Horse Awards will be presented tomorrow, and you can't do it if you don't have enough energy." Tang Huan quipped.

"Waiting for you to sleep together." Lin Fengjiao smiled.

"Delicate and considerate." After Tang Huan finished speaking, he hugged Lin Fengjiao into his arms and kissed him.

"You've said that you have to save up energy for tomorrow's Golden Horse Awards, so let's only do it once tonight." Lin Fengjiao asked shyly.

"Okay, once at a time, but until dawn." Tang Huan laughed.

"Nasty." Lin Fengjiao complained and was speechless.

……

The next day, after Tang Huan had breakfast, he went out to college after reading the newspaper, while Lin Fengjiao cleaned up the house.

Soon after, the phone rang, and it turned out to be Hu Yinmeng calling, saying that he had found a gold pen in the restaurant yesterday.

When Lin Fengjiao heard this, he was overjoyed, "Why don't you send it to the university, Tang Huan is giving a speech there, maybe he will use it when he signs." ”

Hu Yin dreamed for a while, anyway, the supporting actress nomination at this year's Golden Horse Awards is a foil, nothing has happened to her, there is no need to prepare anything, and it is really not a trouble to go to college for a trip, so she agreed to come down.

……

Tang Huan glanced at the crowded students in the audience, and couldn't help but say in his heart, he definitely couldn't be so popular, it should be the event organizer Lazhuang Ding.

Fortunately, he wasn't going to talk about any boring technical topics last night, otherwise it would have been too much of a disturbance to the mood if he fell asleep in the crowd.

Tang Huan glanced at the entourage, and after seeing that the other party signaled that he was ready, he slowly spoke: "We Chinese all like to talk about history, so I will talk to you casually today about the development history before the advent of electronic computers." ”

It can be said that modern electronic computers originated from mechanical calculators.

In ancient times, the most famous calculator was, of course, the abacus invented by our ancestors, but like the four great inventions, it only launched a brilliant beginning, and then gradually became a bystander in the long history.

In 1642, Blaize, who was not yet 19 years old? Pascal, in order to reduce the burden of his father's double counting of tax payments, created a decimal mechanical calculator that could run addition and subtraction, known as Pascal's calculator.

At the Musée des Arts et des Arts and Crafts in Paris and the Zwinger Museum in Dresden, Germany, you can see the first two Pascal calculators that would become the forerunners of early computer engineering.

……

When Hu Yinmeng arrived at the university, he found that he was late, and Tang Huan's speech had already begun.

Seeing that there were so many spectators at the scene, the female Wenqing naturally scolded the event organizer in her heart, so happy, and then hid in the corner to watch the excitement boringly.

……

In 1667, Gottfried Wilhelm Leibniz saw Pascal's calculator in the Musée de Paris and was immediately attracted to it.

He argues that since a mechanical calculator can do addition, it should be able to multiply.

In 1673, Leibniz finally invented the first multiplier, which was continuously improved to become a true calculator that could do addition, subtraction, multiplication, division, and square roots.

Everyone knows that without binary, there would be no modern computer, and it was Leibniz who came up with binary, studied the rules of arithmetic, and initially created logical algebra.

Leibniz is a rare generalist in history, known as the Aristotle of the seventeenth century, and occupies an important place in the history of mathematics and philosophy.

In mathematics, Leibniz and Newton independently invented calculus, and the mathematical notation of calculus that he used was more widely used, because Newton's notation was generally considered to be worse than Leibniz's.

Philosophically, Leibniz was also known for his optimism, and he was one of the first Europeans to come into contact with Chinese culture.

In 1689, Leibniz traveled in Italy, became acquainted with missionaries returning from the Qing Dynasty, and saw the Song Dynasty scholars re-arranging the gossip of the Zhou Yi.

In essence, the yin and yang gossip of "Zhou Yi" contains a kind of binary thinking, Leibniz's invention of binary, whether it was influenced by "Zhou Yi", can not be entangled, we have a nation with a long history, there is no need to force and find any pride for the so-called face.

I just want to explain that in the long history of computer development, our Chinese minds have also shone with wisdom in this field.

……

Hu Yinmeng held Tang Huan's golden pen, while writing and drawing casually in the notebook, while occasionally looking up at the stage, as for the amazing gaze of the boy next to him, he was directly ignored by the female Wenqing.

The so-called speech, in addition to speaking, also acting, all kinds of celebrities in the United States have to show off like this, Hu Yinmeng is naturally no stranger to this.

Seeing that Tang Huan didn't take the manuscript, just standing on the stage and talking freely, a thought flashed in the female Wenqing's heart, this Tang Huan still looks a little different from those businessmen who are full of copper smell.

……

In the 19th century, Britain, known as the sun never set, had a large number of overseas colonies, and its maritime industry has always been valued by the ruling class.

As early as 1776, the British issued nautical watches for use by the military and commercial organizations.

However, the calculation of the nautical table is complex, requires many people to work together, and the monotonous data calculation and the improper cooperation of the calculation personnel make the calculation results often wrong and not easy to detect.

In the course of use, more and more errors and loopholes were discovered, and hundreds of ships even sank on the rocks as a result, to the point that they had to be corrected.

In 1823, the British issued a bounty for someone who could correct their nautical watches, and the mathematician Charles Babbage unveiled the list.

He believes that it is possible to build an automatic computing machine to do those complex tasks instead of humans, and fully automate the process from calculation to output, so that human errors such as calculation errors, transcription errors, proofreading errors, printing errors, etc. can be completely eliminated.

Although the idea was dismissed by many, Arthur Wellesley, Duke of Wellington, who defeated Napoleon at the Battle of Waterloo, recognised the feasibility and invested £1,500 to finance Babbage's development of an automatic computing machine.

In 1835, Babbage's differential machine was developed.

In terms of design, Babbage borrowed the basic ideas of Pascal and Leibniz, but the innovation was that the differential machine uses three gear sets as memory for the data involved in the calculation process.

This is the difference between a difference machine and a calculator, not only one arithmetic operation at a time, but polynomial calculations can be performed according to pre-arranged steps.

After completing a differential machine with three memories, Babbage began to design a differential machine with seven memories.

However, in the manufacturing process, he repeatedly revised the design in order to pursue perfection, and many parts were processed incorrectly beyond the technical capabilities of the time, and finally failed, and the semi-finished product was sent to the museum.

Although the second differential machine was not manufactured, the idea of a modern computer began to sprout.

Babbage divides the differential machine into three parts: the memory component, the read-write data component, and the data operation component.

The three major components cooperate in the division of labor, and each performs its own responsibility. This idea has always been adopted by the designers of modern computers.

Tang Huan picked up the chalk, turned around and drew a schematic diagram on the blackboard.

……

After losing his R&D grants, Babbage continued to work, designing a more complex machine, the analysis machine, on the drawings, developing the concept of programming, and introducing punch cards.

Punch cards can be used not only to record data, but also to store instructions to control the machine.

When the machine is working, it reads the punch card and executes it in the order of instructions, and this sequence of actions is the working program of the machine.

By punching holes in different arrangements on the card, the machine has different working procedures.

When it comes to completing different work tasks, it is not necessary to replace the machine itself, but only to design the perforation arrangement on the card, which is the software design idea of modern computers.

The structure of the analysis machine is more like that of a modern computer, but due to Babbage's own economic situation and the technical processing capacity of the time, the analysis machine was also not manufactured.

Babbage's design idea on the analysis machine was considered ridiculous by the people of the time, how could the machine work instead of the human brain? It is absolutely impossible to achieve. Even in 1871, when Babbage died, The Times mocked his failure in an obituary.

After Babbage's death, the design drawings and parts of his analysis machine were collected by the museum, and people have forgotten about it.

It wasn't until the thirties and forties of the twentieth century that it was discovered by Dr. Howard Aiken of the Harvard Computing Laboratory who was fortunate enough to look up materials for designing computers.

Only then did people realize how correct and important Babbage's computer design ideas were.

It was because of the concept of the design of the difference machine and the analysis machine, and the fact that some of the machines were actually built, that Babbage was regarded as a pioneer of computers.

But how many years have humanity wasted in the meantime? Tang Huan wrote the numbers 1871 and 1940 on the blackboard.

……

Hu Yinmeng subconsciously calculated it in his notebook, and then snorted, just do the oral calculation.

……

As mankind moved from the age of steam to the age of electricity, some engineers and scientists began to consider replacing the gears and some transmission parts in mechanical computers with electrical components.

In 1884, Holerys used the principles of electricity and binary arithmetic to invent the electric tabulator, which was first successfully used in the U.S. Census.

In 1896, Holleris founded the Watchmaking Machinery Company, and the electric watchmaking machine was later widely used in various statistics, gradually developing into a new industry.

In 1911, due to health and poor management, Holleris's company merged with the Metrology Company and the International Chronometer Company to form the Chronometer and Measurement Company, or CRT, but the Board of Directors brought in Thomas Watson after three years of heavy losses.

Watson borrowed money from a bank to develop a new electric watchmaker, and with excellent marketing, the company was booming.

In 1924, Watson renamed CTR IBM, becoming the de facto founder of Big Blue.

Thanks to Watson's push, electric watchmakers became extremely popular in commercial computing, and even in the sixties, they were used by companies.

In 1939, Watson provided Howard Aiken with $1 million in cash and equipment to develop a general-purpose computer based on Babbage's analysis machine and using mechanical and electrical components.

In 1944, the MARK-I, consisting of several IBM electric tabulation machines, thousands of relays, and gears that performed the function of memory, was developed.

In 1946, the MARK-II, which consisted entirely of relays, was developed.

At this point, the development of electromechanical computers has reached its peak.

After that, it was the era of electronic computers that everyone is familiar with, with characters such as Alan Turing and von Neumann appearing one after another, and the internal structure of computers has developed from electron tubes and transistors to today's integrated circuits.

……

Tang Huan smiled, "Don't look at the many components of the computer, but its main design idea is still that set." Imagine in your mind that the ancestor Fuxi used a tree branch to lay out the eight symbols of yin and yang gossip on the ground, and combined them with each other for deduction, it seems that we are not so backward. ”

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