What differentiation do U-disk and portable hard drive have?
The saving way is different. Portable hard drive is a hard drive essentially, but the excellent dish is essentially a FLASH memory EEPROM，and portable hard disk has a big capacity, while U-disk is smaller comparatively (capacity)，price of each unit of capacity of portable hard disk is more cheaper than U-disks. Summary: portable hard disk has great capacity and low price, but compare to U-disk, it is not that of anti-vibration, and it has bigger size and heavier weight .The U-disk cleverly made convenient and smart, but the expensive capacity is also limited of its maximal capacity. And portable hard disk at least have a 20 G capacity, you can store a lot of data, which can divided into area sectors, the U-disk just used a lot at the beginning of computer using, which can store some small documents, such as WORD documents, as for picture, only data of small size can be stored, but portable hard disk can keep a large quantity of information. Generally, our computers hard disk is about 8
