Fish bubbling: Come and see in the morning, the crane is tailing!

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The mainstream of this period is the PC, and the companies that can follow the development of the PC are all living extremely nourishing without exception, IBM's PC did not let it monopolize the market, but created a large number of compatible machine manufacturers and chip providers, Taiwan, South Korea, and Japan are all developed by taking advantage of this shareholder wind, and most of the compatible chipsets come from them.

However, Huaxia seems to be completely unaware of this once-in-a-lifetime opportunity, but has been enthusiastically slashing scientific research funds to invigorate the economy, resulting in the strange phenomenon that it is better to sell tea and eggs than to make missiles, and to miss the opportunity to rise in vain, resulting in a collapse in the future.

This is a good signal, which means that it is just right to cut into this industry at this time, and if it is too late, the reform and opening up, foreign goods will have a great impact on domestic products. With the foundation of his predecessors, Cao Changjiu has the confidence to lead the whole world.

But Cao Changjiu knows that he is not a semiconductor hardware engineer in the true sense, at most he is just a hobbyist. What I'm good at is using hardware language to describe logic, architecture, and dream experiences.,Generally it's soft.。 If you want to make a microprocessor, you can only use the wisdom of this era, which is why Cao Changjiu started from the mainframe first, first accumulated experience, and then overcome the difficulties of the microprocessor.

The microprocessor industry in this era has just started, and both design and testing are manual, and Cao Changchang is a little daunted when he thinks of that workload.

But how unpleasant it is to think that if I don't do it, I will have to use the low-energy processors of the X86 series again in the future! In my dream, I am not using Intel or Microsoft products, and now I have to wait more than ten years to use high-performance processors?

After reading the manual, Cao Changjiu also understood something, 8080 still adheres to the structure of early microprocessors, without the characteristics of mature CPUs, at best, it can only be regarded as a microcontroller, which needs to be matched with a series of functional chips to form a complete system.

In this case, it is better to assemble a microcomputer yourself and use it to enjoy it, Cao Changchang thought.

Just do it, Cao Changjiu immediately began to look for materials, but fortunately, as an integrated circuit manufacturing research enterprise, there is still no shortage of various types of materials.

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Two days later.

"Are you sure this is a microcomputer?" Li Mengyang looked at the messy components connected together all over the table, crisscrossing the lines like alien creatures, and a row of signal lights flashed at him with his glasses, as if to laugh at his loneliness.

"I don't think it's quite like it, but at least it starts, it can process the program I typed, and it can even make a sound, you see. ”

Cao Changjiu took out a piece of paper and pressed it in turn against a row of buttons while looking at the paper. This is the input tool designed by Cao Changchang, using binary machine code, the idea of the small computer "Cowherd Star" of the year, it is very laborious.

Li Mengyang leaned over and glanced at it, only to see that what was written on the paper was dense 00110101, and he suddenly broke out in a cold sweat, this large string of programs was actually coded by a machine, and his evaluation of Cao Changjiu in his heart was even higher.

After Cao Chang laboriously finished all the programs and pressed the switch hundreds of times, he wiped his sweat and turned on the power of the radio that was placed aside.

After waiting for a while, there was no movement, Li Mengyang looked at Cao Changchang strangely, and suddenly the radio rang, and a song flowed out gracefully.

Li Mengyang couldn't believe his ears, absolutely yes, it was "Dongfang Hong", he couldn't help but be stunned, this pile of so-called microcomputers, which looked like a messy combination of components, could actually sing.

Looking at Li Mengyang's wide open mouth, Cao Changchang felt a sense of accomplishment.

This hand was his stunt back then, and when he used to play with an old-fashioned computer in his dream, he found that different memory address units could be restored to different frequencies of sound on the radio, and he studied it very much. In the end, this became Cao Changchang's repertoire, and every time he took out his hand, he could win full applause.

The song has ended, and Li Mengyang is still unfinished, and he looks carefully at this pile of electronic waste.

"Hehe, how about it, it's okay!" Cao Changchang smiled proudly.

"Yes, what is the principle of this thing, how can a computer also play music?" Li Mengyang was very curious about this pile of aliens.

Cao Changjiu explained the principle to him, and Li Mengyang was amazed.

"I can even find this, it's really a game. Li Mengyang praised him.

"Alas, it's a pity that this CPU was not designed and manufactured by us. Cao Changchang was a little discouraged, and in the past few days, he has slightly calculated the amount of work to design a microprocessor, and the result has come to a depressing result - a processor with a scale of 6,000 to 10,000 transistors, his design work alone is at least one to two months, and as for the layout, it will take three or four months.

This is still the case that Cao has been in the chest for a long time, and if it is the first time to design without experience, it will take more time. So Cao Changjiu can only find someone to help him, as for the candidate, isn't it in front of him.

In terms of academic qualifications, Li Mengyang also graduated from a microelectronics college; in terms of experience, he has been designing integrated circuits and layouts for four years, so it can be said that he is a familiar hand; in terms of friendship, the two are friends.

Officially a good man, Cao Changjiu thought to himself, now is how to lure him into his development plan, as for the future manufacturing...... Don't think about it yet, take it one step at a time.

Thinking of this, Cao Changjiu smiled and said to Li Mengyang: "Da Li, how is this computer?"

"It seems to be still usable, but the appearance is a little worse. You're obviously a copycat craft. Li Mengyang admired Cao Changjiu's design level very much, but he despised his handiwork extremely much, "Give me the design drawing, see me make a beautiful one, and ensure that it is small and beautiful." ”

"No problem, I can't ask for it. Cao Changjiu presented the messy design drawings he had drawn with both hands, and led Li Mengyang into the sleeve step by step.

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After Li Mengyang's hand, it was really different, he posted a circuit board, and all the components were integrated into a circuit motherboard, completely eliminating the previous messy scene, and replacing it with clean circuit wiring.

Even the input panel was replaced with a steel one, and a row of red lights was placed on top of the 8 buttons. The whole machine looks very small, like a suitcase, with a flashing red light, which is very sci-fi.