"What's wrong? This machine was just entered, and it took a while to spend it. Kuroko was so anxious that her head was sweating.

Da Li was the same, inspecting the components on the circuit board in detail, but he didn't find anything wrong.

Cao Changjiu leaned over and asked, "Brother Heizi, what's wrong with this thing." ”

Kuroko was not angry: "You play with yours, don't you see that you are busy here!"

Da Li: "Don't, you can come and see it for a long time, you are also an expert, I have nothing to do." ”

Heizi looked at Da Li suspiciously, and Da Li smiled bitterly. Kuroko had no choice but to say to Chang Chang: "The machine I just bought, it didn't become slow and spends for a while, but now it spends like this as soon as it starts, you can take a look." ”

Cao Changchang understood after listening to it, there is either a problem with the reset circuit or a broken clock oscillator, "Come and let me see the board." ”

Cao Changjiu carefully observed this substrate and saw that the CPU was 6502, and he was happy. He's familiar with this, Mostek company's products are known as the cheapest processors at the time, about 20 US dollars a piece, compared to other companies' hundreds of dollars of 8-bit CPUs are indeed the price of cabbage, the famous Apple machine, and Nintendo's red and white machines are all used in this kind of CPU.

This CPU is only 20 feet, and its function can be recited for a long time.

"Da Li, guy, bring it!"

Da Li hurriedly handed over the things and watched him perform.

I saw that I measured the CPU on a few feet for a long time, turned it on, and then looked at the peripheral capacitors.

"Da Li, the capacitor here is not good, look at it, it looks like it is the same, and the legs are actually loose. Let's change it. Cao Changchang said.

Da Li looked at it for a long time: "It's really loose, why didn't I see it." ”

Cao Changjiu: "Of course, you have a full body examination, of course it is not easy to see this little thing." Huaping first looks at the feet of the CPU.,If there's a problem with that foot, touch it along the periphery.,There must be a problem.。 Don't take such a small one, change it to a slightly larger one, small Japan cuts corners, there is no margin at all. ”

Da Li quickly changed the capacitor, and as soon as he turned it on, sure enough, the long-lost image sound came out again, but it seemed that the image was a little slow.

Cao looked at it for a long time and muttered for a while: "This, we can't find out the reason with the instruments we have now, there are sounds, images to play, and things are not broken, it's just that the CPU's frequency is low and the processing power has become weaker, so let's change the clock oscillation and see." ”

Da Li: "We are not an electronic sales department here, how can we have such a complete range of accessories." ”

Cao Changchang said: "Why are you so stupid, don't you just try to disassemble one from other machines, if it's normal, it means that it's a problem with clock oscillation, and you can buy one tomorrow." Let's talk about it if it's not a problem of the oscillation. ”

Da Li was speechless, so he had to obediently disassemble an oscillation to install it, and then turn it on and finally normal, and the image was extremely smooth.

The three of them finally breathed a sigh of relief, and Kuroko gave a thumbs up: "I really can't see it, Xiao Changjiu still has this set." ”

Da Li smiled: "That's, what do people do? Mainframe computer, you don't understand it." If you really feel guilty, invite your brothers to supper. ”

Kuroko agreed: "It's not too early, let's go, eat chaos." ”

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After eating supper, Da Li and Heizi played with great interest for a night, and Cao Changjiu couldn't be sleepy, so he slept there.

Lying on the bed, the person woke up instead, maybe he missed sleeping, Cao couldn't sleep for a long time, and he was thinking about the CPU in his heart.

The design and manufacture of an integrated circuit costs a lot of money, and the investment in the production line is even more scary, and it is impossible to make money if there are millions of goods, so a good product is necessary for a large market.

Now there is a big market opportunity, the game console industry, the main theme of the entire 80s, the domestic game console market in the United States surpassed Hollywood.

There is no problem with your own CPU design, in this era of 8-bit computers, it must be the first performance, the lowest cost, so you can earn the first pot of gold.

Thinking about it, Cao Changjiu was about to laugh, and the constant YY in his mind fell asleep in a daze.

The next day, Cao Changjiu officially launched his CPU plan, and although no one helped, he regarded it as completing a college graduation project.

It is impossible to know who proposed the original CPU concept, and each family has its own opinions, and it is generally recognized that Comrade Hough of Intel Corporation, but Motorola, Texas Instruments, etc. have put forward similar ideas, and the US military has developed them early, and the statements are different.

At that time, it is also conceivable that the development of integrated circuit technology will inevitably produce CPU at this stage, which is a historical trend. From mainframes to microcomputers to microcomputers, from tubes to transistors to integrated circuits, the trend of miniaturization and integration has not stopped, and it is getting faster and faster.

As early as the emergence of integrated circuits, some people predicted that the entire computer system could be integrated on a chip, which could greatly reduce the failure rate, cost, improve performance, etc., in short, there are many benefits, and there are disadvantages.

However, due to the poor integrated circuit technology at that time, only TTL integrated circuits, that is, bipolar integrated circuits, could not be all waferized, and it was not feasible at all, because bipolar transistors were controlled by current, and even if a transistor consumed 0.1 amperes of current, what about 100 or 10,000 ?...... The power will be unimaginable.

This problem was not solved until the invention of the MOS transistor (metal oxide semiconductor tube), which is a type of integrated circuit transistor produced in a planar manner, which can control a large current with a very small voltage and is a high-power tube. Because it is a planar process, it can be produced on a large scale, and it also uses silicon gate circuit technology, which can make all capacitors, resistors, and transistors with silicon, which is the basis of large-scale and ultra-large-scale integrated circuits, which also provides the possibility for the emergence of CPUs.

Moreover, one of the most important characteristics of the MOS transistor is that as long as the width of the metal oxide semiconductor gate is shortened, the speed can be accelerated, which means that as long as the process progresses, the performance can be improved for free, leading to the frequency war in the future.

It was the invention of the MOS tube that Intel Corporation invented, and throughout the 70~80s, they led the whole world and made a lot of money with advanced technology.

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It is said that you can use forum coins to buy recommendation votes on the Internet, and ask weakly, is there such a thing? I already know how much to mix with the jar, I don't have any money, so I can only ask everyone to support me more, cry!