What is a USB flash drive

U disk refers to "USB flash disk"; U disk is a type of flash memory, so it is sometimes called a flash disk; U disk integrates disk storage technology, flash memory technology and universal serial bus technology; The biggest difference from a hard disk is that it does not require a physical drive, plug and play, and its storage capacity far exceeds that of a floppy disk, making it extremely easy to carry.

The operating environment of this tutorial: Windows 10 system, DELL G3 computer

What is a USB flash drive?

U disk is the abbreviation of USB (USB flash disk) disk. According to the homonym, it is also called "USB flash disk". A USB flash drive is a type of flash memory, so it is sometimes called a flash drive. The biggest difference between a USB flash drive and a hard disk is that it does not require a physical drive and is plug-and-play. Its storage capacity far exceeds that of a floppy disk, making it extremely easy to carry.

U disk integrates disk storage technology, flash memory technology and universal serial bus technology. The USB port is connected to the computer and is the channel for data input/output; the main control chip enables the computer to recognize the U disk as a removable disk and is the "brain" of the U disk; the U disk Flash (flash memory) chip saves data and interacts with the computer's memory Differently, data will not be lost even after a power outage; the PCB backplane connects various components together and provides a platform for data processing.

Composition of U disk

The composition of U disk is very simple, mainly composed of shell and movement, among which:

1. Movement: Movement It includes a PCB USB main control chip crystal oscillator chip resistor, capacitor USB interface chip LED (not all U disks have it) FLASH (flash memory) chip.

2. Shell: classified by material, including ABS plastic, bamboo, metal, leather case, silicone, PVC software, etc.; classified by style, including card, pen, mini, cartoon, business, simulation, etc. ; Classified by function, including encryption, anti-virus, waterproof, intelligence, etc.

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