求大神这个数据的算法

应该是16进制。

这个你要看操作系统的教材，书不好好看，就来问问题是不可取的！

Before LBA you simply had the physical mapping of a disk, which originally disk access with the BIOS on an old a IBM-PC compatible machine would look something like this the following:

Cylinder Number : (10b)
0-1024 (1024 = 2^10)
Head Number: (8b)
0-256 (256 = 2^8)
Sector Number : (6b)
0 is reserved typically for the "boot sector" (c-0,h-0,s-0)
1-64 (63 = 2^6 - 1) *0 is reserved
Total CHS address : 24b (10+8+6)

200c币，我不信楼上的答案是正解，虽然看不明白。

在操作系统书上面有这类的公示，加上数据转换，应该可以得到这样的结果