The similarities and differences between hard disks and USB flash drives, what are the advantages an

The storage method is not the same.

A hard disk is a primary computer storage medium consisting of one or more discs made of aluminum or glass. These discs are covered with ferromagnetic material. The vast majority of hard drives are fixed hard drives that are permanently sealed and fixed in the hard drive.

U disk is a kind of flash memory, also called flash disk, USB disk, the biggest feature is: small, large storage capacity, cheap. It is one of the removable storage devices.

The hard disk is relatively large, the USB disk is relatively small (size), the unit capacity of the hard disk is much cheaper than the USB flash drive, the mainstream USB flash drive is about 1G, and the mainstream mobile hard disk is 160G.

Summary: Large capacity** cheap but more afraid of vibration than USB flash drive, size and weight are also larger, U disk is small and easy to carry but expensive capacity is also limited, hard disk can store a lot of things.

Hard disks have a large capacity and are relatively expensive. Slow down.

U disk, small capacity, relatively fast speed, cheaper.

In terms of volume, mobile hard disks are large, U disks are small, and mobile hard disks consume more power than U disks.

The advantage of hard disk is that it has a large amount of storage, and the disadvantage is that it is too large and inconvenient to carry, but now, it is good to have a portable hard disk.

Floppy disks can be DoS-booted, which is only useful in specific environments. Now it's generally not used. In addition, there is no floppy drive installed in the current machine.

The advantages and disadvantages of the disc are caused by its characteristics, that is to say the disc is read-only and cannot be modified in any way, the data will not be lost, but since it cannot be modified, the storage must be with a disc burner, so

What about the U disk, it's different, you can delete the files you don't need at any time, but the storage amount is too small and not enough, so the mobile hard disk is ideal.

U disk is flash memory, that is, flash disk, the largest one that can be seen on the market now has 2G, and the individual is very small. It uses semiconductors to store data!

Mobile hard disk is an ordinary hard disk or laptop hard disk with a hard disk enclosure on the outside, with a large capacity and a relatively large individual. It stores data in a tracked way!

The two store data in different ways!

To put it simply, one has a large capacity and one has a small capacity!

Other??? What's the difference between being storage devices?

How can it be so complicated?

The characteristics of the USB flash drive: small and easy to carry, large storage capacity, cheap, reliable performance. The USB flash drive is very small, only the size of a thumb, and extremely lightweight, generally around 15 grams, which is especially suitable for carrying around, we can hang it on the chest, hang it on the keychain, or even put it in the wallet.

The general U disk capacity is 4G, 8G, 16G, 32G, 64G, 128G, 256G, etc., ** Take the common 8GB as an example, you can buy it for about 50-80 yuan, and about 100 yuan for 16G. There is no mechanical device in the storage disk, and the shock resistance is extremely strong. In addition, the flash drive also has the characteristics of moisture-proof, anti-magnetic, high and low temperature resistance, etc., and has good safety and reliability.

Categories: Computer Network >> Hardware Zheng Yin.

Problem description: What is the difference between a hard disk and a USB disk?

What are the strengths of each? The more carefully the better!

Thank you so much!!!

Analysis: 1. The hard disk is a part of the computer used to store data, which stores all the data of the computer. The data saved in the hard disk will not be lost even if the computer is turned off.

2. USB disk is a new type of mobile storage product, which is mainly used to store large data files and exchange files between computers conveniently. USB flash drive does not need a physical drive, nor does it need an external power supply, it can be hot-swapped, and it is very simple and convenient to use. USB flash drive is small in size, extremely light in weight, shock-resistant and moisture-proof, especially suitable for carrying, and is an ideal storage product for mobile office and file exchange.