Li Yixuan didn't sleep all night, and came to the company on time the next day, he didn't feel sleepy now, and there was only one idea in his heart, to turn the drawings into reality.

Directly to the technical department, the two engineer robots called over, these two robots are with Li Yixuan, they are responsible for the task of retrieving the electronic technology information of the United States, understanding the current level of electronic technology in the United States, and retrieving the various electronic-related patents registered in the United States, those technologies have expired or are about to expire, those new technologies have been registered, and those technologies are still in the patent protection period, etc. In order to help Li Yixuan's electronic products make the development plan of the original period.

In the West, patent protection is very important, if you don't pay attention, it is easy to get a lawsuit, this is not in China, copycats are copycats, patent problems must be vigilant.

This technical department was established in accordance with laboratory standards, and it was full of all kinds of scientific research equipment, Li Yixuan did not immediately show them the drawings, called two engineer robots over, and asked, "How many patents have CD-ROM been applied for?"

"We have applied for 16 patents. A white-looking engineer robot replied.

CD full name: COMPACT DISK, is the meaning of laser record, disc, CD stands for small laser disk, is a general term used for all CD media formats. This technology was released by Philips in 1972 and applied for an international patent in the same year with a term of protection of 15 years, which means that the patent CD patent will not be invalidated until 87 years old.

On the surface, Li Yixuan can wait until the patent expires before it is too late to enter the CD field, but this is not the case, after the CD patent expires, Philips and Sony will jointly release ISO9660 video and audio standards with Hollywood, and various patent barriers are wave after wave, if you don't start the layout early, it will be very passive in the future.

Nintendo is the best example, because it did not master CD technology, it was best to be beaten by Sega and Sony, and then Microsoft joined in, relying on strong financial and technical strength, and finally Nintendo was driven out of the TV console market. If it weren't for the handheld to win a game, it might have become a simple game maker like Sega.

In terms of financial resources, Nintendo does not lose to any company, but it is his biggest shortcoming in technology, and all core components have to be provided by other companies, which greatly limits his development.

Li Yixuan will not make such a mistake again. CD patents can no longer be counted on, but the current CD patent technology is not comprehensive at present, and these vacancies are just convenient for him, especially the ISO9660 standards and extended standards, such as what blue books, yellow books, etc., all find out, and apply for patents one by one. Then take these patents to negotiate with Philips, carry out patent swaps, and get the CD patents you want.

Of course, it will not be stupid to register all patents, let alone register all patents at one time, some subsequent patents can be registered later, but in the early stage, especially Philips and Sony, which are currently lacking, can be registered first, for example, digital audio technology, which will not appear until 1990, can be registered first, and digital audio lossless compression technology can also be registered first. As for technologies like what VCD video burning, video lossless compression, etc., it can be completely put behind, and there is no rush now.

The engineer took out the plan for the patent application of the CD, Li Yixuan carefully flipped through it, and revised the annual application plan for several years according to the application release time of the CD-related technology downloaded from another time and space, and asked them to implement it.

Then he took out the drawings that he had designed after staying up all night, "CD is a long-term plan, just follow the plan." Now you guys take a look at this, and I want you to make it in a week's time. ”

Two robots walked over and looked at it, there were two copies of the drawings, one of which was the integration of the keyboard, floppy drive and game card slot, which was the common learning machine.

The other is more like a computer, with a monitor, chassis, keyboard, and external floppy drive. In terms of appearance, it is a bit like the Apple II computer launched by Apple in October this year, which uses a 6502 processor, but the architecture is completely different.

Apple II's motherboard architecture is more similar to the PC architecture launched by IBM in 1981, in fact, IBM's PC is a large number of references to Apple II's motherboard structure, and it is not surprising that the two are very similar.

The structure of the personal computer motherboard designed by Li Yixuan is completely different from Apple's, and it is based on the improved design of the FC game console.

First of all, the motherboard has the standard memory module inserts found on later computers, which can support up to 512K memory. Apple's memory slots are 2 small slots, which can only support up to 48K memory, while Li Yixuan's plan is to maximize the maximum memory support of the 6502 processor. If you want to go up, you can only upgrade the CPU

In addition, there are four PC-I expansion slots on it, which are also common on later computers, and are generally used to support discrete graphics cards, Hanka cards, and various function enhancement cards.

ATX power socket and auxiliary power connector, the sound effect is the same as that of the FC host. Two IDE interfaces, one built-in and one external, are used to connect floppy drives, built-in ones are used for internal floppy drives, and external ones are used to connect external floppy drives.

Externally, the keyboard interface adopts the mainstream USB interface of the later generations, and the 1.0 standard is enough. A display interface, at this time there was no DVI interface, it was jointly released in 1999 by Silicon Image, Intel, Compaq, IBM, HP, NEC, Fujitsu and other companies.

Now the interface of the computer monitor is still the early RGB interface, this interface belongs to the analog interface, in the display process, first in the computer's graphics card through digital/analog conversion, the digital signal is converted into an analog signal and transmitted to the display device, and in the digital display device, the analog signal is converted into a digital signal through the analog/digital conversion, and then displayed.

This display mode inevitably causes the loss of some information after 2 conversions, and also has a certain impact on the image quality.

But considering that this is only an 8-bit computer, the image display quality is just like that, Li Yixuan is too lazy to plan to replace, even if you want to change, those display manufacturers will not pay attention to you, and it is not too late to change when the 32-bit computer and the display production factory have their own in the future.

In addition, Li Yixuan also designed a printer interface, and there are currently two printers on the market in the United States, one is Xerox's laser printer and copier, and the other is RB Aisin's dot matrix printer.

For such a computer, the laser printer and photocopier is too high-end, and a dot matrix printer is sufficient.

"Look, is there a problem?"

"There is no problem with the structure, but there is a small flaw, I recommend caching and video memory with 32K, 4K is too small. In addition, I recommend installing two sound card slots, which will not only facilitate future upgrades, but also expand more applications. ”

"OK, that's it. Li Yixuan agreed,4K video memory and cache is indeed a little smaller,78 years32K video memory and cache have come out,32K memory is not far away,Intel will release it in the second half of the year,RB will also release 32K memory a year later,The memory war will become more and more intense in the future。 Intel will be forced to transform.

"Also, add another tape interface. Another robotics engineer suggested, "Floppy drives are still new to today's computers, and their popularity is not high, and the vast majority of computers on the market still rely mainly on magnetic tapes to record data." ”

I didn't expect this to be ignored, I think Apple's earliest Apple II used a tape drive, but later the floppy drive became more and more popular, and it was replaced by a floppy drive.

Thinking of this, Li Yixuan remembered that France released a computer in the 80s, and the cassette driver on it was very interesting, and it was directly put on the keyboard several times. He thought it was a good idea, so he picked up a pencil and extended the keyboard and drew out the cassette card slot.

Everyone continued to discuss, and revised a few unreasonable small details, and finally the drawings were finalized.

"Is it released at the same time as the learning machine?"

Li Yixuan thought about it, and finally denied: "Forget it, this will seriously affect computer sales, and after our second-generation computer is released, it is not too late to launch the learning machine." However, the learning machine must be fully compatible with our computer, and it must be 100% compatible. ”