4gb of memory can download 100 songs square dance .
The biggest advantage of the USB flash drive is that it is small and portable, has a large storage capacity, is inexpensive, and has a reliable performance.The USB flash drive is very small in size, only the size of a thumb.
Weight is extremely light, usually about 15 grams, especially suitable for carrying, we can hang it on the chest, hanging on the key chain, and even put into the wallet.
Flash drives
Although small, they have a relatively large storage capacity. Early flash disk capacity is small, only can store 16-32M files, even so, is equivalent to the then common erasable mobile storage media floppy disk capacity of 10-20 times. With the development of technology, the capacity of USB flash disks also increased rapidly according to Moore's Law.
By 2012, the 4G capacity of USB flash drives was basically on the verge of being phased out, and the mainstream USB flash drive capacity had developed to 8-16G, equivalent to the capacity of 2-4 DVD disks. The maximum capacity has reached 1T, equivalent to the capacity of more than 240 DVD disks. Flash disk using USB mass storage device category.
This means that most modern operating systems can read and write to flash drives without the need for a separate driver installation. Flash drives appear to the operating system as blocks of logical units, hiding the intricate details required for internal flash memory. The operating system can use any file system or block addressing method. It is also possible to create a boot USB flash drive to boot the computer.