Reborn Tech Maniac

Chapter 803
……

Judging from the common sense 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.

However, this name comes from a king in Scandinavia who is comparable to China's Qin Shihuang - Bluetooth Harald. Tang IT was too embarrassed to cut off his beard lazily, so he simply found such a person from Eastern culture. The noun also just describes the all-round coverage of its own wireless connection solution up and down, east, west, north and south.

In fact, this kind of one step ahead is not a cut-off. After all, there is not much room for choice of civilian wireless communication methods, including infrared, shortwave, etc.Zheru’s “6D” wireless connection technology solution uses the short-wave Industrial_Scientific_Medical_Band—ISM band for communication.
The so-called ISM frequency band, as the name suggests, is mainly open to Industrial-industrial, Scientific-scientific, Medical-medical, three major radio frequency bands.Organizations in related fields do not need licenses or fees when using these frequency bands, as long as they abide by a certain transmission power limit, such as less than 1W, and do not cause interference to other frequency bands.

The rules formulated by the Radiocommunication Sector of the International Telecommunication Union are implemented differently in various regions of the world.

比如，美国对ISM频段的规定，有三个频段——902-928MHz、2400-2484.5MHz及5725-5850MHz；而欧洲则把900MHz的部分频段，用于2G时代的GSM通信。

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

The microwave oven is a well-known example of ISM frequency band application, and the microwave used in its high-frequency oscillation is 2.45GHz.

"6D" can also work in the 2.4GHz frequency band, and thus has a relatively easy basis for promotion.

Most of the people in the venue were veterans in the technology circle. When Tang Huan mentioned it casually, they all came to their senses, and then became very interested in the "tidy desk".

There was a guy with an out-of-the-ordinary personality who asked for the microphone and joked, "Don, are you too aggressive in environmental protection, so you developed the 6D wireless connection technology to kill all the cables?"

Mr. Richest Man smiled and said: "To be fair, regardless of factors such as cost and selling price, just from the point of use, compared to wireless connections, the benefits of cables in some cases, such as drawing, games, etc., are currently It’s hard to replace.”

Having said that, Tang Huan clicked on the slide with the 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 has low implementation cost.

Zheru is quite authoritative in this application field, from the remote control of household appliances such as TV sets, VCRs, air conditioners in the early 1980s, to small mobile devices such as laptops, personal digital assistants, mobile phones, and even desktop computers. Data exchanges such as address books have been covered.

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

Pointing to the comparison table, Tang Huan used specific data to explain the reasons for launching 6D. "Infrared communication technology has a minimum cone-shaped limit of 15 degrees in angle, while Liuhe does not have this limit in the upper, lower, east, west, north, and south; in reality, During the application process, the typical sweet spot of infrared communication technology is the range of 5 cm to 60 cm from the transceiver, and Liuhe can reach 5 meters; in terms of transmission speed, the most supported mode of infrared communication technology is the lowest speed definition of RS-232 - —9.6kbps, Liuhe can reach a maximum of 720kbps.”

"It can be said that, except for the implementation cost, Liuhe has completely surpassed the widely used infrared communication technology at present, but as our experience suggests, this cost problem will naturally be solved as the scope of application expands."

"More importantly, everyone has also seen that 6D can perfectly solve the interconnection and intercommunication problems between various devices - 6D mouse, 6D keyboard, and the 6D printer that I will use soon, can all communicate with the host Communication, and infrared communication technology is completely defeated."

After explaining this paragraph, Tang Huan hit the print button 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 had admiration for Tang Huan, the Taishan Beidou of IT technology, so the atmosphere at the scene was warm and relaxed, so someone asked curiously: "Tang, your world's number one under construction High-tech mansions must use these wireless technologies.”

Tang Huan nodded, and seriously replied: "Let's ignore the gimmick of the world's number one high-tech mansion hyped by the media for the time being. This project does have the mission of stimulating the research and development of cutting-edge technologies - 6D mainly provides a set of personal wireless local area network. Technical solutions, and the real wireless local area network has a wider range of communication functions."

Although the richest man only mentioned it superficially, many smart people immediately sketched out the tip of the iceberg of the roadmap for the research and development of Zheru technology in their minds.

Seeing that everyone had almost digested the meaning of 6D, Tang Huan turned the topic to Tang's IT Kingdom's support for 6D, "As you can see now, in the upcoming fifth generation of Fangyuan personal computers, there will be The lowest level BIOS provides driver support for 6D and strives to make it a standard configuration among notebook computer products; at the same time, 2G cellular mobile phone products are also an extremely important support platform."

"Of course, although the 6D technology I demonstrated to you just now seems to be 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. It needs to be done. I hope that by forming the broadest consortium of 6D technologies, we can all work together to solve these problems.”

……

Zheru Developer Conference has developed into an important technical event in the world, so during its holding period, various media are paying close attention to any developments in it.

Undoubtedly, 6D, which debuted in the most vivid packaging method of "beauty of simplicity", has become a star in the technology news.Some industry observers pointed out that the 6D, which can connect mobile phones, PDAs, laptops, and other mobile devices, is more like a pioneer in wireless LAN technology, and Tang Huan has great plans.

6D, the popular fried chicken, not only brings something fresh to everyone, but the 6D Technology Alliance WEB website, which is almost on the heel, has already included a group of well-known companies on its member directory page, which makes people have to admire Tang The appeal of the richest man.

……

However, the rapidly becoming popular 6D is not yet the most important technical topic at this Zheru Spring Developers Conference.

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

Take Fangyuan personal computer as an example, the BIOS of the competitor IBM-PC works in real mode, and the codes, including drivers, etc., are hard-defined to a fixed memory address space when loaded, giving Adding new functions and new hardware brings many restrictions.

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

Let’s talk about another important internal memory—hard disk, the 5-inch hard disk first equipped in the Fangyuan personal computer industry. At that time, it only had a capacity of 5MB. It is widely used in desktop computers and notebook computers respectively.

In addition to the new functions brought by new specifications such as these, there are also ZIP super floppy disks, CD-ROM, USB, and the recent 6D wireless transmission standard, and even higher-end SCSI, RAID and other new technologies and new equipment have been added.

These rapid new developments in personal computers all require BIOS or similar implementations to provide the lowest-level support in the seconds after the user presses the power button of the host computer.However, these increasingly large number of system codes are limited by the insufficient memory address allocation space of IBM-PC in BIOS design.

After the fourth generation of Fangyuan personal computer, Tang Huan launched the fourth-generation Fangyuan personal computer MMX, which seems to be a transitional product. The fifth generation of 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 concerns the entire system. .

The Fangyuan computer platform has an advantage that competitors cannot match, that is, it can perfectly integrate CPU-central processing unit, DSP-digital signal processor, and other types of processors or hardware accelerators.

At this Zheru Developers Conference, a new concept was proposed by Tang Huan. Compared with the traditional Central_Processing_Unit—the central processing unit is the CPU, the Graphics_Processing_Unit that is responsible for graphics computing—the graphics processing unit is the GPU. .

The richest man did not show the "beauty of simplicity" of 6D today, but used a traditional Fangyuan computer as a demonstration device.

When explaining the concept of GPU, Tang Huan's tone revealed a kind of impassioned

"We all know that the display output part on the main circuit board of a personal computer was originally responsible for assisting the CPU, simply converting digital signals into analog signals and outputting them to the display."

"With the emergence of fonts with various artistic effects and the need for more extensive graphics and image processing, the burden on the CPU for display has increased significantly, and semiconductor chips with corresponding functions have emerged naturally, until now it has been quite mature. 2D accelerator."

"It's just that although the functions of these display chips are becoming more and more powerful, even outstanding ones have all video generation functions including line drawing, area filling, block image transmission, and even a set of self-contained instruction sets, etc. A lot of work that can only be done by the CPU has obviously reduced the computing pressure of the entire system, but it has never been taken seriously enough to be regarded as an independent computing unit."

"Now, I think it's time to put forward the new concept of GPU, which will help everyone to have a clear understanding of the realization of computer graphics, and attract the industry to develop it into a vibrant industry, promoting hardware coordinate conversion and Light source, three-dimensional environment material map and vertex blending, texture compression and concave-convex mapping texture, etc. are still in the hardware implementation of the core technology of 3D graphics calculation based on computer graphics theory, so as to usher in the [-]D 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 overhead of data scheduling and transmission between various components, so that these specialized chips can be used to their full potential. effect."

"More specifically, programmable components like GPUs will be presented to programmers uniformly and transparently, which in turn enables personal computers to have very considerable parallel processing capabilities."

"The benefits brought by this are self-evident. Ordinary users can get better digital multimedia and video game experiences."

"We can even imagine that when the Internet becomes popular enough, we can extend this parallel computing to the entire Internet, such as assisting in DNA cracking."

……

Tang Huan's technical layout is still old-fashioned and has successful experience to follow. After proposing the GPU concept, the Fangyuan computer platform integrates CPU, GPU, DSP and other processors with hardware accelerators, which is essentially equivalent to the original time and space. More than ten years later, general-purpose computing technologies such as OpenCL, CUDA, FireStream, and DirectCompute allow GPUs with more powerful performance to process other operations besides 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 technological advancement. General computing technology should have been taken into consideration from the infrastructure design stage.

With these most basic driving forces, maybe games like Bitcoin mining can appear earlier.

(End of this chapter)