765: C765 Substitution of the Hard Drive

C765 Substitution of the Hard Drive

The day before yesterday, Lisa helped Xiaojun complete the task of making the computer sound. At the same time, she also completed the background music for turning the computer on. Therefore, Worker Ni still respected Lisa. That was why he patiently and calmly discussed with Lisa. Without their hard drive, our computers would be useless. It would not be able to display its powerful performance. If it was coupled with the hard drive of the commercial plane, the cost and volume would not be acceptable.

"Setting up our own hard drive research and development department, we will also start developing our own hard drive. We absolutely cannot be controlled by others." Lisa said.

Lisa was a capable female entrepreneur. She immediately proposed to develop her own company. A company like this would not be able to cooperate in the future. Instead, she wanted to crush it!

Others might not know, but Lisa knew. With the system in Qin Guan's brain, in this world, only other companies would look at his face. It was impossible for them to point fingers at him and pinch his neck at any time.

There was only the hard drive that could not be broken through. We might as well make our own hard drive!

"This is not easy." Worker Ni said, "Even if we immediately organize a research and development team, because we do not have any technological reserves. I'm afraid it will take a long time for us to break through. As for our computers... We won't be able to wait that long. "

Delaying the delivery as soon as it was listed would cause a lot of negative effects, especially since it was sold at such a high price. If they couldn't enjoy satisfactory services, their brand would be destroyed.

Han Country didn't have any hard drive technology reserves. Even if Qin Guan had exchanged production equipment before, he didn't have a skilled worker. It would definitely take some time.

Lisa smiled. "During this period of time, we will start the emergency plan and find a replacement for their hard drive."

Substitute? What else could be replaced? Even Worker Ni was very puzzled.

"President Qin, please tell everyone." At this time, Lisa saw Qin Guan walk in and immediately gave the right to speak to Qin Guan.

Others might not think of it, but Qin Guan could think of it.

"Our alternative is to use the disc." Qin Guan said.

Lisa could communicate with her brain at any time, so she naturally knew her alternative solution. That's right, the disc!

In the future, the disc had been on fire for a long time, all the way to the solid storage technology. When the SSD hard drive became popular, when the large capacity of the USB exceeded the capacity of the disc, the disc gradually declined, becoming history just like the cassette tapes.

Compared to cassette tapes, which could only be pulled out to play, the disc could at least be used as a mirror, blocking the license plate, and was slightly more useful than cassette tapes.

But now, the disc was definitely Chaoyang's.

The appearance of the disc was like the invention of paper that greatly promoted the progress of human civilization. It recorded the history of human civilization's development and created a new industry.

From the perspective of information storage, the disc could be seen as a new type of paper. A small plastic disc with a diameter of 12 centimeters and a weight of no more than 20 grams and a storage capacity of more than 600 trillion words.

That's right, it was more than 600 trillion words. Compared to the current hard drive, it only had a capacity of a few trillion words. The capacity of the disc was quite large. The hard drive used the head to read the contents of the disk. The disc was similar to the disc, but the writing and reading of the information were all achieved through lasers.

After the laser is focused, it can obtain a light beam with a diameter of about 1 micrometer. Just like how the singing needle of the disc was placed on the disc, this Laser Beam was the singing needle. Therefore, the first field of usage of the disc was sound.

Philips' researchers used the laser beam to record and reload information. In 1972, their research was successful. In 1978, it was launched into the market.

This was the Laser Video Disk System. It was also called the Laser Video Disk, which had a larger diameter. It was 12 inches, and the information could be recorded on both sides. Actually, it was just a copy of the record. Furthermore, the signal it recorded was a simulated signal.

Simulated signals were continuous signals, and computers used digital signals, which were represented by 0 and 1.

Phillip's product had already been released, and it was a success. Unfortunately, it did not set a uniform standard, causing its development and production to fall into an expensive investment from the very beginning.

After all, when the equipment was released, there had to be records. The companies that issued the records all felt that it was too troublesome and no one would be able to use it.

In 1982, Philips and Sony set the CD-D laser record standards for the red leather book. It first digitalized the simulated sound signal into a PCM (Pulse coding modulation), and then recorded it on the disc after the EFM coding.

It was only after digitalization that the CD-D lasers developed rapidly.

At the same time, this digitalized record also fulfilled the basic data storage requirements of the computer.

"Now, Phillip has developed a laser disc, but the cost of this system is expensive. It's almost impossible to sell, so we can buy back their patent. Then we can do digital modifications ourselves in less than a month's time. It should be able to transfer our system... Save it on the disc, install an optical drive on our computer... Activate the disc "

A single activation disc could allow the computer to start, and it could also integrate all kinds of software, just like the computer installation workers in the future, a disc would be able to conquer the world.2

This was a battle of numbers.

Of course, there were still many problems that needed to be solved.

This type of disk could only be read and could not be written, so as long as it was accompanied by a floppy drive, it would be fine. The data needed to be installed on the floppy disk was the same as the USB in the future. At the same time, this disk also needed to be digitalized.

"There are two important problems. One is to build a data structure suitable for computer reading and writing, and the second is to reduce the error rate."

Qin Guan only roughly understood what was inside, and Lisa took over Qin Guan's words. She continued, "I think we can just use the degree of depression in the disc to show 0 and 1. At the same time, the data on the disc was organized in the form of blocks of data. Each piece must have an address. After doing so, the data on the disk could be quickly found in the storage space of several hundred trillion words. In order to reduce the error rate, a method to increase error detection and correction was adopted. The error detection uses a loop redundant detection code, which is called CRC."

What Lisa said was more professional. Worker Ni's eyes slowly lit up.

The other side wanted to block their neck on the hard drive, but there was no door. Once he had this kind of system, the hard drive would become useless. Unless the hard drive could reach a capacity of several hundred trillion, it could not be compared to the disk!

This new Lisa was simply too capable!

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