Is the USB flash drive a semiconductor storage device or a magnetic storage device

The disk is virtual, the hard disk is real, and there are multiple disks in the hard disk, which can be understood as the disk memory is the hard disk.

Disk Storage:

1. The disk is the memory of the storage medium, which is an auxiliary memory preparation mill for data storage on the rotating disc coated with magnetic recording medium by using magnetic recording technology, and has a large storage capacity, high data transmission rate, and long-term storage of stored data

2. In computer systems, disk memory is often used to store operating systems, programs and data, is the expansion of main memory, the development trend is to increase storage capacity, improve data transmission rate, reduce access time, disk memory is usually composed of disks, disk drives and disk controllers.

The U disk is a semiconductor memory, the USB flash drive is integrated with a flash chip, and the storage medium is a semiconductor.

The common mechanical hard disks (with the exception of solid-state drives, which belong to semiconductor memory), disks, and floppy disks all belong to magnetic memory.

Computer memory is divided into two large branches: internal memory and external memory, and the above three types of disks belong to external memory.

If we continue to divide, the U disk uses the electronic activity of flash memory as a means to read and change information storage, while the hard disk and optical disc use the activity of mechanical parts as a means to read and change information storage, so it can be divided into flash memory and mechanical memory. But in recent years, the rise of solid-state drives has changed this division, and solid-state drives also use flash memory as a storage medium, which belongs to the same flash memory as USB flash drives. This division is even more confusing with the advent of hybrid hard drives, which contain a solid-state storage section and a full mechanical storage section, which are flash memory and mechanical hybrid memory.

There are two kinds of storage: memory and external memory, floppy disks, hard disks, optical discs, and U disks all belong to external memory, which is the warehouse of the computer and the place where programs and data are stored.

The storage capacity of the inch floppy disk, which is the smallest of the four, is facing the fate of elimination.

Today's computers generally have hard disks, otherwise they can't run independently, and in the main chassis, they store programs and data, and of course, games (hehe), with a large capacity.

In addition to storing movies, CDs can also store computer game installers, and of course, they can also store a lot of things, which are very commonly used.

The biggest feature of the USB flash drive is that it is convenient and plug-and-play. It can be used as an alternative to floppy disks.

In short, they are all memories that store all your data, and the information is not lost after a power failure.

The speed from fast to slow is the hard disk "U disk" disc, and the capacity size is also in this order. Portability is a USB flash drive, a compact disc, and a hard disk. In addition, the disc is generally read-only, and the you and the hard disk are read and written at will.

What is the storage principle of a USB flash drive? How does flash memory store data?

It is not a magnetic storage, it should be a capacitive way, stored in 1 and 0.