✔ 最佳答案
format = change format
such nt, fat32 or 16 and etc
which for different use of software
if for a dos start./ people world format their pc which let the pc to support some kind of reading, such as a new HD to MS dos
now most people are using windows, format will be something like recover, means going back to the original
the other way will mean "delete all" "clear up" and so on
such u go a digital cam with a sd card, if u want to clear up the memory u will be doing a format
:) hope u understand la!