Hand rubbing nuclear fusion live in the wilderness

Chapter 175 Transistor Computers
After thinking about it for a while, Han Yuan didn't understand the system's judgment criteria. He asked the system and didn't get an answer, so he simply left it alone.

At least the upgrade from the primary shopping mall to the mid-level shopping mall is still very good for him.

In the future, he can no longer waste time on the manufacture of these basic parts.

The manufacture of such things as bearing balls and absolute ethanol is actually quite time-consuming, but they are also very useful.

After groping around the mall for a while, Han Yuan reopened the task information panel.

The countdown to the start of the secondary mission was beating second by second.

In less than two days, he will start a new mission again.

Although he made multiple preparations for the last level [-] task, Han Yuan was still very nervous about this level [-] task.

Although the Korean won knows exactly what accessories are in a modern computer.

He can count all kinds of parts such as CPU, graphics card, motherboard, memory, and power supply.

Know how to match, how to assemble.He can even write some simple programs and codes by himself.

But after all, this is based on the modern society, and he can get these basic parts in various ways.

But he has to handle the whole process from start to finish, from raw materials to processing to parts forming to welding to assembly, which is no less difficult than stepping on the left foot to the right foot.

Apart from other things, the three core components of the computer, the CPU, internal memory, and input/output devices, can make it difficult for him.

And more importantly, the secondary task is also time-limited, for a period of one year.

Although the system explained that it could be completed ahead of schedule, what Won was most worried about was that he didn't have enough time.

Straightening up, Han Yuan held the mouse and started searching for some information about computers and the history of computer development.

With his current basic industrial equipment, trying to manufacture a modern computer is simply nonsense, completely impossible.

He can't get out just the CPU, which needs to use a lithography machine.

After thinking about it, Han Yuan turned his mind to the original computer.

The requirement for the secondary task is to develop an electronic computer that can be used for high-speed calculations and record relevant data within 360 five days, and the calculation speed is required to be no less than one million times per second.

Millions of calculations per second are nothing for modern computers.

Even for the most common home computer, its core CPU, such as i5-6600, has four core computing capabilities of about 20gflops.

Converted into floating-point operations, its operation speed can easily reach 200 billion times per second.

If technologies such as SIMD are counted, multiple data can be calculated at one time, and the peak value can easily reach 100+gflops under the condition of proper software optimization, that is to say, floating-point operations can reach hundreds of billions of operations per second.

Although it sounds exaggerated, it is really nothing.

More importantly, this is just an ordinary home computer.

The computing speed of modern supercomputers is even more exaggerated.

Take Huaguo's supercomputer "Shenwei E-Class Supercomputer" as an example, its calculation speed has exceeded 120 billion operations per second, and the peak calculation speed can reach [-] billion operations per second.

But this thing has no meaning for the Korean won.

Modern CPUs are manufactured using integrated circuit technology. For him, this is an insurmountable gap.

It's pretty good that he can figure out the original calculation.

Holding the mouse, Han Yuan flipped through some of the searched information.

In February [-], the first electronic computer 'ENIAC' in the history of human development was born at the University of Pennsylvania.

This electronic tube computer uses 170 electronic tubes, covers an area of ​​more than [-] square meters, and weighs [-] tons.

This message made Won's eyes shine.

He has already met the requirements and conditions for manufacturing electron tubes in the last level [-] mission.

It only takes a day or two for him to manufacture the tube.

However, the subsequent information made South Korea directly rule out the option of electronic tube computer.

Electronic tube computers have shortcomings such as large size, high power consumption, short life, low reliability, and high cost, but these are nothing to him.

However, the calculation speed of the electronic tube computer can hardly meet the requirement of 100 million times per second for the secondary task.

Calculate according to the situation that the first electronic computer 'ENIAC' manufactured by human beings used [-] electronic tubes, and the running speed was [-] times per second.

If he wants to meet the requirement of 100 million times per second, I'm afraid he will have to produce 500 million electronic tubes.

In addition, there are more than one million related accessories such as switches, resistors, and capacitors.

This number made South Korean Won give up the idea of ​​making a tube computer.

Not to mention the high voltage required to supply so many parts, he would not be able to do it in ten years just by connecting 500 million electronic tubes in series.

This figure is too exaggerated.

After abandoning the idea of ​​building a tube computer, Won set his sights on second-generation computers.

"Transistor computer."

This is a computer from the late 50s to 60s.

Because the electron tube is too large, and the calculation efficiency is too low.

At the end of the [-]th century, Bell Laboratories in the United States successfully developed a point-contact germanium transistor.

The advent of the transistor is a major invention of the [-]th century, and it is the main condition for the miniaturization of various electrical appliances including computers. The inventor also won the Nobel Prize for this.

After the emergence of transistors, people can replace electronic tubes with large volume and high power consumption with electronic devices such as transistors, which are small, low power consumption, and widely used.

Since then, electronic tubes have been almost abandoned, and except for some specific occasions, electronic tubes are hardly seen anymore.

The second-generation computer "transistor computer" uses semiconductor transistors as the core computing devices.

The internal memory uses a large number of magnetic cores made of magnetic materials, and the external memory uses magnetic disks, supplemented by second-generation computers based on input and output devices.

Transistor computers are lighter and perform faster because smaller transistors are used instead of bulky tubes.

By the 60s, the computing speed of transistor computers had reached more than 300 million times per second.

This number perfectly meets the requirements of the secondary mission.

Moreover, compared with the third-generation 'medium and small-scale integrated circuit computers', the second-generation initial transistor computers can still be integrated using punched cards.

There is no need to integrate electric boards, which is a very big advantage for him at present, which means that the design difficulty is much simpler.

(End of this chapter)