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Simple segmentation and paging comparison
nSegmentation requires more complicated hardware for address translation
nSegmentation suffers from external fragmentation
nPaging only yield a small internal fragmentation
nSegmentation is visible to the programmer whereas paging is transparent
nSegmentation can be viewed as commodity offered to the programmer to organize logically a program into
segments and using different kinds of protection
(ex: execute-only for code but read-write for
data)
ufor this we need to use protection bits in segment table entries