What can always be seen in the Styles gallery? built-in styles with samples
the original formatting of the document
changes that have been made to the document’s text
examples of the last five formats used
be fast!!

hi,

know what your user needs,

know what your competitors are doing,

go cheap, test cheap prototypes,

go through multiple iterations of the product,

set goals,

pre market your product,

scalable supply chain,

start telling everyone!

hope this !

answer; insolated i/o uses separate memory space,and on the other hand memory mapped i/o uses memory from the main