Memory accounts for the largest proportion of computer chipsets. What ordinary people don’t know is that a computer usually contains four types of memory, one is read-only memory (ROM), which can only be read, cannot be written or modified, and can be permanently saved by one write. Taking advantage of this difficulty in losing, it is generally the most important BIOS program for storing computers.

One is cache (CACHE). The concept of several-level cache we usually hear refers to. It is a register between the CPU and memory. The reading and writing speed is much faster than memory, but it is not easy to save. In a clock cycle, the data must be refreshed. When the CPU writes memory data, it is also written to the cache. In this way, the next time the CPU needs to read data, it is read from the cache, so that the data response speed is faster.

Simply put, the intuitive impression that the cache gives us is that the computer responds quickly and the web page opens at a glance. This is the credit of the cache, and the image output is stable and the frames are not flashed, which is also the credit of it.

The third type is memory (RAM). Memory is the name that distinguishes external memory. It is also called random memory. It shares a clock frequency with the CPU. This feature makes it convenient for CPU data writing and reading.

Memory is actually composed of multiple modules, the most important one is to help CPU computing. It has a built-in computing module, and its performance directly determines the performance of the computer, and its status is second only to CPU.

But memory is just a temporary memory. Once power is off, the data will be cleared. What we usually call flashing is to power it off and clear the running programs and data in the memory.

The fourth type is external memory. External memory includes disks, optical disks and hard disks, especially hard disks. It is a type of permanent storage and will not lose data even if the power is out. It is the place where all programs and computer operating systems are stored.

There is still a lot of knowledge about memory, so I won't list them in detail here. I wrote these mainly to point out the reason why the Electronics Research Institute can sell memory chips and memory sticks to the outside world.

This is also when Liu Meijuan instructed Hu Weiwu to ask the Electronics Research Institute to focus on research, research on existing patented technologies in Europe and the United States, and to apply for subsequent invention patents first.

These years have been the rapid development of memory chip technology. After several generations of technological iterations, it has reached the current stage of DDR storage technology.

It is her forward-looking concept that enables the Institute of Electronics to master a considerable number of key patents, which European, American, Japanese and Korean chip companies cannot avoid. Therefore, after many interactive authorizations, the Institute of Electronics to master the complete right to use the memory chip patent.

DDR technology is a revolutionary innovation in memory chip technology. I don’t know who invented it. Anyway, Liu Meijuan, the instructions of the Electronics Research Institute, have also successfully squeezed into this camp.

At this stage, there are only a few chip companies in China, Japan and South Korea in the world that are still persisting.

So now we have passed the simple price competition stage, and we also have to compete for technology. Now the Institute of Electronics is studying DDR4 technology, skipping the two same generation technology stages, DDR2 and DDR3.

Yes, there is no technical generation difference from DDR1 to DDR3, and it is collectively called the first generation. Only DDR4 is the real second-generation DDR storage technology, with revolutionary progress.

DDR is an updated product of SDRAM. It allows data transmission on the rising and falling edges of clock pulses, so that the data throughput speed of SDRAM can be doubled without increasing the clock frequency.

DDR4 is a technology that has been in the past ten years since DDR1. Not to mention the extraordinary performance of increasing the clock frequency by twice the extraordinary performance, the storage capacity alone is a huge technological leap from hundreds of MB in the early days to 64GB in the DDR4 era.

It can be said to be absolutely crushing, so DDR4 is a brand new socket standard and is completely incompatible with the previous motherboard standards.

The reason why the Electronics Research Institute has the courage to cross several generations of technology nodes is that it is due to Liu Meijuan's guidance. Without her, there is no cross-age concept like DDR4.

The most important point is that after the upgrade of Huasheng Microelectronics technology, it may directly enter the process level of 32nm or 28nm, so it has the ability to manufacture 3D memory chips such as DDR4. Each chip has 16G of memory, and four blocks are 64G, which has amazing performance and far exceeds the storage capacity of mechanical hard disks at this time.

In order to match it, the Electronics Research Institute is also developing a new memory chip technology, which is the SSD solid-state drive technology that replaces mechanical hard disks.

The overlord of mechanical hard disks is ibm, which was invented by him. ibm has mastered a large number of key patents, and it is difficult for the electronics research institute to enter this field.

The world's first solid-state drive was invented in 1989, but due to technical limitations at that time, it was not practical and has never attracted people's attention.

However, this kind of solid-state drive standardizes the standard of solid-state drives, which adopts the same technical interface standards and the same data storage standards as traditional mechanical hard drives. Using a processing chip plus storage particles and an operating system program can replace the storage function of the mechanical hard drive.

This is exactly the technology needed by the Electronics Research Institute. Previously, due to technical reasons, the storage capacity was not as good as that of mechanical hard disks and was expensive, so it was eliminated.

At present, only Huasheng Microelectronics, which has been upgraded in the world, can produce such solid-state drives. Although it is an old bottle of new wine, the times have changed. With the upgrade of technology, this technology that has been eliminated can bring new vitality.

Without Liu Meijuan, this kind of solid-state drive would not have been invented and promoted by Samsung until 2006.

There are two types of solid-state drives. One is the technology that uses SDRAM storage media, which is specially used to replace mechanical hard drives. Currently, only the Electronics Research Institute is studying in the world.

The second type is the memory chip technology that uses flash memory as a medium, which is the well-known micro memory chips such as USB drives, memory cards, and Mp3 memory.

Because this technology has practical value, many companies have been studying it since 1998, including our China Langko Company.

Of course, these companies are all researching based on the USB interface standard and the serial bus standard of ibm. Electronic research must develop a different C drive than the U disk based on the CT-py interface standard and serial bus standard of Dolphin computers.

This is a need for the Internet of Things system and is only available to its own internal users, including all smart security system users around the world.

This kind of C drive has too many benefits, which is easy to carry and sell. The intelligent security system is mainly used for system upgrades and software input.

Having said so much, I just want to show that during the period when Huasheng Micro Electronics Group's technology upgrade, the Electronics Research Institute was not idle. They are developing a variety of chips based on 32-nanometer process technology, including high-performance server chips, graphics processing chips, audio processing chips and a variety of memory chips.

As long as the upgrade is completed and the expected goals are met, Huasheng Microelectronics will switch to producing these high-performance chips, causing a technical crush on similar chip companies in Europe and the United States.
Chapter completed!