1, in fact, data transmission is a very complicated problem, which is not just data exchange between storage media; To put it bluntly, the data transmission between computer and mobile phone is not between hard disk and SD, but needs the cooperation of computer CPU, memory, hard disk and motherboard. Similarly, the mobile phone also needs its CPU, memory, motherboard and SD card to work together.

2. Compared with mobile phone hardware, the performance of computer hardware is very powerful and perfect. Although mobile phones have made great progress, they are not as good as computers in data processing, and the bigger the data, the more obvious the difference.

3. The computer hardware function is perfect, and the hardware itself has sufficient data processing ability in all links;

The data processing ability of mobile phone mainly lies in its CPU, and the memory of mobile phone can't be compared with that of computer. The memory of a mobile phone is often used as a part of the body memory or the "memory" in the SD card.

The storage speed of mobile phone is not as fast as that of hard disk data, and it is not as fast as that of computer memory. However, the "memory" or SD card in the mobile phone can be used for at least the following three functions.

A, as an exchange area, it is similar to the "memory" function of computer memory.

B, as the "cache function" of file retrieval

C, keep the mobile phone system running stably.

6. Generally speaking, the hardware in the mobile phone is inherently slow, and the same device has to do at least three things at the same time, which seems to be inadequate; It is this "powerlessness" that makes it easy for computers to transmit or accept huge data when transmitting slightly larger data to mobile phones. However, when the mobile phone is faced with a huge amount of data, problems such as jamming, errors, and even automatic restart and automatic shutdown often occur because of the inability of the hardware.