computers may store bytes in orders and may use different encodings
for binary numbers and even for letters (such as ASCII on PCs versus EBCDIC
on
Today's operating systems generally leave the name-space problem
unsolved for removable media depend on applications and users to figure
out how to access and interpret the data. a few kinds of removable
are so well standardized that all computers use them the same way. One
example is the CD. Music CDs use a universal format that is understood by any
CD drive. Data CDs are available in only a few different formats, so it is usual
for a CD drive and the operating-system device driver to be programmed to
handle all the common formats. DVD formats are also well standardized.