Back to the Republic of China to be a editor

……

Beijing.

Tsinghua University, Computer Lab.

The T50 computer arrived in Beijing, and less than a month after it settled down in the library of Tsinghua University, the computer room became the most crowded room in the library.At 8 o'clock in the morning, when the computer operator came to the computer room, there was already a long line of people at the door, and more than a dozen teachers and professors were waiting quietly.

"Whose calculation is programmed?" asked the lead operator.

"my" "my"

Two middle-aged teachers stepped forward holding paper tapes.

"Others, give your calculation requirements to the programmer next to you, and follow the order of the queue." The main operator held up the paper tape and looked at it.

When the switch is pressed, the T50 makes a low hum. The power consumption of MESM is 25 kilowatts, and the power consumption of T50 is reduced to 5-8 kilowatts. Although it is also an electric tiger, it seems that there is no need for a dedicated power supply system. It is enough to strengthen the circuit of the library.

The first tape was fed into the computer, and within a minute the results were displayed on the T1's main screen.

"Professor Chen, take a look, check the calculation, and see the result, right?" said the main operator.

Professor Chen opened the notebook, looked at it, and then looked at the screen. "The result should be right, let's type."

The second tape was fed into the computer, and the T50 buzzed and buzzed for five or six minutes.

"Hey, Professor Qian, what are you talking about? The computer is almost smoking."

"The solution of a fluid mechanics equation requires relatively high numerical accuracy," Qian Sanqiang said, "Little comrade, don't worry about it so much. The electricity costs you pay for are negligible compared to my research."

Bang bang bang, there was a sound, everyone looked back, Mr. Zhang from the Department of Civil Engineering dragged a folding table and a folding chair, panted and climbed up the stairs, settled down in the aisle next to the computer room, opened the folding table, Opening the folding chair and sitting down, Teacher Zhang took out the books, notebooks and pencils from the backpack.

"Mr. Zhang, are you going to settle down here?"

"I'll just do the design here," Teacher Zhang said. "During the design process, I will always suddenly encounter equations with a large amount of calculation. I don't bother to run to the computer room again and again. I just spend a day here. What's the point?" If you need to do calculations, just write a note and submit the application."

"Mr. Zhang, what are you designing?"

"A tunnel."

……

Electronic Industry Bureau.

After completing the first test of the guided bomb and watching the T50 computer go into mass production, Tang Hua returned to Beijing.

"The address of the Beijing Institute of Computer Science, I think it should be closer to Tsinghua University." Tang Hua searched for a suitable address on the map.

Time entered 1950, and the ministries, commissions and research units of the Government Administration Council gradually had to build some houses to accommodate the new departments.The Bureau of Electronics Industry, which built China's first electronic computer in less than four months, has a high priority in resource allocation, and now it can choose a location to establish a computer research institute.

"It's here," Tang Hua finally saw the familiar place name, "Zhongguancun. It's here."

The address of the research institute was determined in seconds, and Tang Hua quickly approved the batch of documents, and went to the General Administration of Ordnance Industry when he went out.

Liu Nai, the director of the General Administration of Ordnance Industry, has just returned to Beijing these two days, so I need to discuss something with him quickly.

Chapter 26, time is a little tight

"Mr. Liu, let me ask about the situation of the Air Control-1 live ammunition shooting. In addition, how many aerial bombs are installed now, is the supply of seekers timely, and is there any need for modification and coordination?"

The radio command-guided bomb has been formally designated as Air Control-1, which has two subtypes: Air Control-1 A (250 kg) and Air Control-1 B (500 kg), jointly developed and produced by the General Administration of Ordnance Industry and the Bureau of Electronics Industry .Because of the computer project, Tang Hua left earlier than Liu Nai. Liu Nai stayed at the Taihu shooting range the whole time, and did not return to Beijing until the test of the flight control-1B mobile target ship was completed.

"I'm also writing a report, why don't we look at the report data together." Liu Nai was writing a report, and when Tang Hua came in, he pushed a stack of reports over.

On March 3, an experiment was conducted to bomb the mobile target ship with the Air Control-26B live ammunition, and 1 out of 3 rounds, this result can be said to be excellent.The target ship is a dilapidated paddle steamer from the Qing Dynasty, the main engine has been scrapped, and it was towed by other ships.Just such a broken hull built in the late Qing Dynasty, the East China Bureau was very reluctant. It was approved to be used as a target ship after several applications, and then it was blown back to the state of parts by two 2 kg bombs.

As for other times, the daily training of pilots is still towed by a tugboat with an 8m x 16m bamboo and wood frame covered with canvas as an enemy ship, which does not cost the ship or damage the training bombs.

On March 3, the first batch of 23 Tu-12 bombers completed training in Northeast China, and then transferred to East China via North China. Then, the Ordnance Industry Department carried out on-site modification at the airport. The modification is expected to be completed in early April, equipped with carrying and throwing guidance The ability to bomb.There are 2 groups of aimers and bombardiers who have completed the training, because it has nothing to do with flight control, it is not a big problem for these 4 groups to directly switch from B-6 to Tu-6, since they all sit on chairs to aim at people anyway.However, all the first batch of 25 Tu-2s still need to be remodeled, because it is estimated that by April, there are still 12 groups that can complete the training.In terms of ammunition production, 2 pieces of Aviation Control-4B are currently assembled, and the scale of production of 6 ammunition per week will probably be maintained in the future.Due to the limited production capacity of the seeker, the 40 kg flight control-1A is not yet produced.

"Will the progress of the guided bombs delay the liberation of Penghu? It's already early April, and the fighting has not yet started in Penghu." In fact, this is what Tang Hua is most concerned about.

"Probably not. Our development, production, and training speeds are already fast enough," Liu Nai said. "We still have a group of people in the General Administration of Ordnance Industry who are working on Soviet-made landing ships and landing craft. This is even slower. Five Months later the ship will be in place, modified and trained..."

Tang Hua scratched his head.He began to feel anxious, but he couldn't tell outsiders why he was anxious, which was really tormenting.

In the past six months, China Resources has collected 4 tank landing craft (LST) and 6 infantry landing craft (LCI) overseas.In addition, there was a tank landing ship bought by China Merchants Shipping. When it was loaded with a paratrooper and was about to retreat to Taiwan, the whole ship rebelled. The landing ship, its crew, and hundreds of paratroopers all joined the PLA ranks.

Even so, the number of landing ships collected is still far from enough.Penghu is far away from the mainland. When Kinmen was liberated, wooden sailboats could be used. Penghu was absolutely useless.The big buffalo can't paddle directly from Xiamen to Penghu. The distance of more than 100 kilometers will take more than ten hours. Even the battery life of the fuel tank is not enough, let alone the waves on the central line of the Taiwan Strait are too big.Since November 1949, we have requested the Soviet Union to provide landing ships, and we want them in stock.The Soviet Pacific Fleet is not a fleet that is strong in amphibious operations. It took a lot of effort to mobilize 11 landing ship and a dozen landing craft, and hand them over to our army in Dalian one after another.

Both Tang Hua and Liu Nai are now in the industrial sector, and neither of them knows the specific date of the battle to liberate Penghu. Tang Hua also knows that Commander Su has now arrived in Xiamen, and he is not sure about the others.

But fortunately, Tang Hua still has a military channel that can be accessed through normal work.

……

Tsinghua University.

Tang Hua went to inspect the computer room of the library first, and was frightened by the liveliness of the scene.The corridor leading from the library to the computer room is like a street of stalls. Five or six folding desks are lined up. Teachers or professors work and do research on the spot, and write notes and hand them in if they have computing needs.There is always someone waiting at the counter in the computer room, and the two programmers never stop.

"Old Qian!" Tang Hua discovered that the owner of a folding desk was Qian Sanqiang, "Have you settled down here yet?"

"Ah, academician Tang," Qian Sanqiang just took out the calculation results from the computer room, "your computer is like a magnet. The whole school is now attracted to engineering and theory. Last week, civil engineering teacher Zhang invented The method of bringing your own desk and chairs for a short stay is followed by everyone. This method is good and saves a lot of time for running errands."

Tang Hua: "Tsinghua is indeed not enough for one computer. After a while, when the production capacity increases, it should be able to equip more. At least the Department of Physics must have a dedicated computer."

"It would be great if this could be done," said Qian Sanqiang. "Now the Department of Physics is conducting research in several directions. Teacher Zhao will come back in a few months. He may also need a computer for his research. The Department of Physics saves time during this period. Some funds, if there is a quota for the computer, hurry up and get it."

"Don't worry, the price of the computer is not as expensive as you imagined." Tang Hua knew that Laoqian must use the performance-price ratio of ENIAC to deduce the price of T50, "and it will be cheaper in the future."

In the computer room, Tang Hua checked the operation of the computer, and it was unexpectedly normal. There were only four or five failures in more than a month, and they could basically be eliminated on the spot. Only one computing unit was burned out, but Tang Hua Hua has allocated two spare computing units for each computer. It is not a big deal if one computing unit breaks down, just take it out and replace it.

After Tang Hua inspected the computer room at Tsinghua University, Lao Zhou, the secretary of the Bureau Office, came back from Yenching University next door and said that Yenching University had made arrangements.

In 1950, Yenching University had not yet been eaten by Peking University.But it's coming soon.

"Hello, Professor Li, and Hello, Teacher Feng." In the library of Yanda University, Tang Hua met the two teachers who may be the best Korean teachers in Yanda University.

"In the next two or three days, I will work with the two of you, and the location is here, the library." Tang Hua found the shelf of North Korea and South Korea in the newspaper room of the library, "I want to browse from September 1949 All the newspapers, magazines, and brochures that can be collected so far.”

Stacks of newspapers were taken out from the shelf and placed on the table.Tang Hua took a pen and paper and began to listen to Professor Li and Professor Feng reading the newspaper.Listen to Mr. Feng reading the headlines of newspaper reports first, and see if Tang Hua decides whether he wants to understand the full text. After reading the full text, if Tang Hua thinks it is valuable, he will hand over to Professor Li to write a brief translation.

……

Zhongnanhai.

Tang Hua has two reports today. The first report is to report the development and production of guided bombs to the Prime Minister together with Liu Nai from the General Administration of Ordnance Industry, and the second report is to report the domestic electronic computer alone.

"...Since the birth of electronic computers in 1946, American scientific research institutions and military equipment research and development institutions have gradually begun to use electronic computers, which has reduced a large amount of computing workload in scientific research and engineering design, and doubled the manpower used in scientific research. The efficiency of scientific research and equipment research and development has been greatly improved. This acceleration effect has also been evident in Tsinghua University in the past month. After using computers, the efficiency of scientific research and engineering design in Tsinghua University has doubled, and the quantification in the design process Calculations are also more precise."