The invention of U disk
When U disk replaced floppy disk and became a common mobile storage tool for people, few people knew that U disk was not a product name but just a flash drive registered by a company. trademark, and the company that invented the world's first flash drive and won the global basic invention patent for flash drives, its founder, one of the invention patent holders and the president of Harbin Langke Technology Co., Ltd. Lu Zhengbin, at the beginning of his business , settled in the Harbin Development Zone Overseas Scholars Pioneer Park, and together with Shenzhen Langke Company, lead the development trend of the global mobile storage industry.
The flash drive (OnlyDisk) launched by Netac Company under the trademark USB is the world's first new generation storage product based on the USB interface and using Flash Memory media. The flash drive is China's only original invention patented by the Chinese in the field of computer storage in the past 20 years.
U disk, USB interface and plug and play
In layman’s terms, USB is one of the interface types that connects peripheral devices to the computer host. In addition to the USB interface, there are also Interfaces such as parallel buses. However, the USB interface has a great advantage that makes it very popular in this field, that is, devices with this interface can be plug-and-play on the computer (sometimes called plug-and-play). Hot plug).
When the computer is turned on, the peripheral devices must be turned on first and then the host power is turned on, and the order is exactly the opposite when shutting down. The reason why this boot sequence must be followed is that before the computer starts, all peripheral devices must be powered on and ready, and then wait for the host to check these devices one by one and install the corresponding software. Only in this way can the computer function normally. Run, otherwise the peripheral device may be unavailable or the computer cannot recognize the peripheral device.
The emergence of the USB interface has changed this situation. If a device is a USB interface, then it can It can be plugged into the computer host at any time, no matter what state the computer is in at the moment. If you want to remove this device, you only need to follow the standard operations to safely remove the device from the computer. This undoubtedly provides people with better learning and life. Great convenience.
Therefore, from the name of the U disk, we can see that this storage disk has a USB interface. Because this storage disk has a USB interface, this storage disk can also be used on the computer. Plug and play, which means that this storage disk is a removable storage disk and can be carried with you. Therefore, a U disk in a broad sense actually refers to a mobile storage device. A U disk in a narrow sense only refers to a flash disk. .
A flash disk refers to a removable storage disk that uses flash memory technology to store data information. Flash memory technology is a storage technology that has just emerged in the computer field a few years ago. It has many advantages compared with traditional electromagnetic storage technology. Advantages: First, this storage technology has no mechanical movement during the process of storing information, which makes its operation very stable, thereby improving its anti-seismic performance, making it the least afraid of vibration among all storage devices. Second, Since it does not have high-speed rotating discs like floppy disks, hard disks, optical discs, etc., its size can often be made very small. The reason why current MP3 players can be made very small is because of the use of this storage technology .