The difference is that the Chinese meaning expressed by the two is different, and the specific difference is as follows
IC Chinese meaning abbr. integrated circuit
USB Chinese meaning abbr. Universal Serial Bus (Universal Serial Bus)
The difference between the letters IC and USB is that the pronunciation and meaning are different.
1.ic, full name, pronounced [pik], means to pick, pick, dig.
2.usb, the full name of usability, pronounced [ju:z?'biliti], meaning usability.
Usb is an asymmetric structure, IC is a symmetrical structure. We call the common integrated circuit IC, USB is an interface technology applied to the PC, the real plug and play.
The difference between IC and USB is that their core system is not the same, one is a fully automatic agent system, one is a manual agent system, so their difference is here