problem
1, the data transfer rate 1, the data line transfer rate and its thickness, is there any relationship, if there is a proportional relationship or inverse relationship?
2, multimedia card reader transfer rate and data line transfer speed which is faster to write, and why?
3, why memory than the external memory read and write speed much faster, explain the reason.
4, multimedia card reader speed than the write card speed? Why?
Reply
1, and the thickness of the data line has nothing to do.
2, depends on the reader and card interface speed. USB 2.0 interface 40 times faster than USB1.1, USB3.0 10 times faster than USB 2.0.
3, the structure of the memory and the structure of the hard drive you compare. Hard disk and CD-ROM principle is similar.
4, read the card faster than the write card, which is determined by the flash chip.