There was never one commonly accepted meaning for a MB. Storage has always been base10. Linespeed has always been base10. RAM is native to a matrix, and lazy programmers like to pretend that means everything is.
The first commercial drive, the IBM 305, stored 100,000 characters on each of 50 platters, for 5 million total characters. Drives have been a base10 number of sectors for my entire lifetime.
The first commercial drive, the IBM 305, stored 100,000 characters on each of 50 platters, for 5 million total characters. Drives have been a base10 number of sectors for my entire lifetime.