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Judging from the common sense that is widely known in the era of popularization of smart mobile devices more than ten years later, this "6D" or "Liuhe" wireless data transmission technology is similar to Bluetooth, the wireless technology standard pioneered by Ericsson - Bluetooth. Pen % fun % Pavilion www.biquge.info

It's just that the name comes from a Scandinavian king comparable to China's Qin Shi Huang - Bluetooth Harald, Tang IT was embarrassed to be lazy to cut off his beard, so he simply found such a term from the oriental culture, which happened to describe his wireless connection solution up and down the east, west, north and south all-round coverage.

In fact, this kind of lead is not a trump, after all, there is not much room for civil wireless communication methods, nothing more than infrared, short-wave and so on. Zheru's "6D" wireless connection technology scheme uses the short-wave industrial_scientific_medical_band-ISM frequency band for communication

The so-called ISM frequency band, as the name suggests, is mainly open to industrial-industrial, scientific-scientific, medical-medical, radio frequency bands for three major purposes. Institutions in the relevant fields do not need a license or fee to use these frequency bands, as long as they comply with certain transmit power limits, such as less than 1W, and do not cause interference to other frequency bands.

The rules developed by the Radiocommunication Sector of the International Telecommunication Union (ITU) are implemented in different regions of the world.

For example, the United States has three frequency bands for ISM frequency bands - 902-928MHz and 5725-5850MHz; In Europe, part of the 900MHz frequency band is used for GSM communication in the 2G era.

Fortunately, there is still a common rule reached, that is, 2400MHz, that is, 2.4GHz, which has become the ISM frequency band used by all countries.

A well-known ISM band application is an example of a microwave oven that uses 2.45 GHz for high-frequency oscillation.

"6D" can also operate in the 2.4GHz band, which provides a relatively easy basis for rollout.

Most of the people in the venue were old birds in the technical circle, and Tang Huan woke up when he mentioned it casually, and then became interested in the "neat desk".

There was a guy with a detached personality who asked for the microphone and joked: "Tang, are you too radical in environmental protection, so you developed the wireless connection technology of 6D, so as to kill all the cables?" ”

Mr. The richest man smiled: "In all fairness, regardless of factors such as cost and selling price, just from the point of use, compared to wireless connection, the benefits of cables are difficult to replace in some cases, such as drawing, games, etc." ”

Speaking of which, Tang Huan clicked on the slide with a wireless mouse and switched to the page comparing 6D and infrared communication technology.

The biggest advantage of using infrared to transmit data is that it is easy to use and the implementation cost is low.

In the early 1980s, he was an authority on the exchange of data between small mobile devices such as laptops, personal digital assistants, and mobile phones, as well as data exchanges such as contacts, including desktop computers, from remote controls for home appliances such as televisions, video recorders, and air conditioners, to small mobile devices such as laptops.

Unfortunately, the limitations of infrared communication technology are also very obvious - due to the direct emission characteristics of infrared rays, it is not suitable for applications with many obstacles, and there are also shortcomings such as too short transmission distance and low transmission rate.

Pointing to the comparison table, Tang Huan used specific data to explain the reason for the launch of 6D, "Infrared communication technology has a 15-degree minimum conical limit in terms of angle, while Liuhe has no such restriction in the upper and lower east, west, north and south; In the actual application process, the typical sweet spot of infrared communication technology is the range of 5 cm to 60 cm from the transceiver, and the Liuhe can reach 5 meters; In terms of transmission speed, the most supported modes of infrared communication technology are the minimum speed definition of RS-232 - 9.6kbps, and the maximum speed of Liuhe can reach 720kbps. ”

"It can be said that in addition to the realization cost, Liuhe comprehensively surpasses the currently widely used infrared communication technology, but as our experience suggests, this cost problem will be naturally solved as the scope of application expands."

"More importantly, as you can see, 6D can perfectly solve the interconnection problem between multiple devices - 6D mouse, 6D keyboard, and the 6D printer I will soon use can communicate with the host, and infrared communication technology is completely defeated."

After elaborating on this paragraph, Tang Huan tapped the print key on the 6D keyboard, and the 6D printer quickly spit out a comparison table between 6D and infrared communication technology.

Many engineers in the audience have admiration for Tang Huan, the Taishan Beidou of IT technology, so the atmosphere is warm and relaxed, so someone asked curiously: "Tang, your world's first technology mansion under construction must apply these wireless technologies." ”

Tang Huan nodded and replied seriously: "We don't care about the gimmick of the world's first technology mansion hyped by the media for the time being, the project does have the mission of driving the research and development of cutting-edge technology - 6D mainly provides a set of technical solutions for personal wireless LAN, and the real wireless LAN has a wider range of communication functions." ”

Although Mr. The Richest Man only mentions it in a flash, many smart people still immediately sketch the tip of the iceberg in their minds about the R&D roadmap of Zheru's technology.

Seeing that everyone had almost digested the meaning of 6D's existence, Tang Huan turned the topic to the Tang IT Kingdom's support for 6D, "As you can see now, in the upcoming five generations of Fangyuan personal computers, driver support will be provided for 6D from the lowest BIOS, and strive to make it a standard configuration in laptop products; At the same time, 2G cellular mobile phone products are also an extremely important support platform. ”

"Of course, although the 6D technology I just demonstrated to you seems to have been working normally, there is still a lot of work to be done in terms of low power consumption, low cost, anti-interference, compatibility, security, and industry promotion. I hope that by forming the broadest 6D technology consortium, everyone can work together to solve these problems. ”

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The Zheru Developer Conference has grown to become the world's leading technical event, so the media are keeping a close eye on any developments during its run.

There is no doubt that 6D, which debuted in the most vivid packaging method of "simple beauty", has become the star of technology news. More industry observers have analyzed and pointed out that 6D, which can connect mobile phones, handheld computers, laptops and other mobile devices together, is more like a pioneer of wireless LAN technology, and Tang Huan has a great plan.

6D, the popular fried chicken, is not only to bring a fresh energy to everyone, almost heels to the 6D Technology Alliance web site, its member directory page, has included a number of well-known companies, people have to admire the appeal of the richest man in Tang.

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It's just that 6D, which quickly became popular, is not the most important technical topic at this year's Zheru Spring Developer Conference.

For a long time, Fangyuan computer architecture has always occupied a leading position in technology compared with other microcomputers.

Take the Fangyuan personal computer as an example, the BIOS of the competitor IBM-PC works in real mode, and the code, including drivers, etc., is rigidly defined to a fixed memory address space when loaded, which brings a lot of restrictions to the addition of new functions and new hardware.

For example, in the early 1980s, the size of floppy disk drives was only about 360KB, and in just a few years, it has evolved from 720KB and 1.2MB all the way to the current standard specification of 1.44MB, and even derived niche specifications such as 1.68MB and 2.88MB on this basis.

In addition, another important internal memory - hard disk, Fangyuan personal computer industry first equipped with 5-inch hard disk, at that time only 5MB capacity, now not only in 100 megabytes, 3.5-inch hard disk, 2.5-inch hard disk is also popularized in desktop computers, notebook computers.

In addition to the new features brought by these new specifications, there are also new technologies and devices such as ZIP super floppy disks, CD-ROMs, USB, and more recently, 6D wireless transmission standards, and even higher-end SCSI, RAID, and so on.

These rapid advances in personal computers require a BIOS or similar implementation that provides the lowest level of support within seconds of the user pressing the host power button. However, this increasingly large amount of system code is limited by the lack of memory address allocation space on the BIOS design of IBM-PC.

Tang Huan launched the fourth-generation Fangyuan personal computer MMX, which seems to be a transitional product, after the fourth-generation Fangyuan personal computer, and the fifth-generation Fangyuan personal computer has always been shrouded in a veil of mystery, because there is a big move in the research and development process that affects the entire system.

Fangyuan computer platform has an advantage that is difficult for competitors to achieve, that is, it can perfectly integrate CPU - central ~ central processor, DSP - digital signal processor, and other types of processors or hardware accelerators.

At this year's Zheru Developer Conference, a new concept was proposed by Tang Huan, compared with the traditional central_processing_unit - central ~ central processor that is, CPU, the graphics_processing_unit responsible for graphics computing - graphics processor is GPU.

Mr. The richest man today did not show off the "simple beauty" of 6D, but used the traditional Fangyuan computer to make a presentation device.

When expounding the concept of GPU, Tang Huan's tone revealed an impassioned tone

"We all know that the display output part of the main circuit board of the personal computer was only responsible for the auxiliary CPU at the beginning, which simply converted the digital signal into an analog signal and output it to the display."

"With the advent of fonts with various artistic effects, as well as a wider range of graphics and image processing needs, the burden of CPU in display has increased significantly, and semiconductor chips corresponding to functions have naturally emerged, until now it is quite mature 2D accelerator."

"It's just that, although the functions of these display chips are becoming more and more powerful, and even the outstanding ones have all the video generation functions including line segment painting, area filling, block image transmission, and even a set of self-contained instruction sets, etc., which share a lot of work that can only be done by the CPU, and significantly reduce the pressure on the entire system in terms of computing, but it has never been valued to the height of being regarded as an independent ~ vertical computing unit."

"Now, I think it's time to put forward a new concept of GPU, which is conducive to everyone to have a clear understanding of the implementation of computer graphics, and attract the industry to develop it into a vibrant industry, and promote the hardware implementation of hardware coordinate conversion and light source, three-dimensional environment material mapping and vertex mixing, texture compression and concave ~ convex mapping mapping, etc., which are still in the theory of computer graphics, so as to usher in the advent of the 3D era as soon as possible."

"The next-generation Fangyuan computer platform will further integrate CPU, GPU, DSP and other processors with hardware accelerators to reduce the cost of data scheduling and transmission between various components, so that these specialized chips can play the greatest role."

"More specifically, programmable components such as the GPU are presented to the programmer uniformly and transparently, which in turn allows the PC to have a very considerable amount of parallel processing power."

"The benefits of this are self-evident, and the average user can get a better experience of digital multimedia and video games."

"We can even imagine extending this kind of parallel computing to the entire Internet when the Internet is widespread enough, for example, to assist in DNA cracking."

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After putting forward the concept of GPU, let Fangyuan computer platform integrate CPU, GPU, DSP and other processors with hardware accelerators, which is essentially equivalent to OpenCL, CUDA, Firestream, DirectPute and other general computing technologies more than ten years later in the original time and space, that is, GPUs with more powerful performance to deal with other operations other than graphics operations.

In Tang Huan's view, the development process of personal computers in the original time and space was determined by the pursuit of market interests, rather than whether the technology was advanced or not, and general computing technology should have been taken into account from the infrastructure design stage.

With these most basic power drives, maybe games like Bitcoin mining can appear earlier. (To be continued.) )