shared objects / dynamically loaded libraries. how the link
editor works, how external symbols are resolved, how the language
runtime support code first searches for dynamic libraries and
mmap[solaris] them into memory before calling main.
new: local file store. inode (index node) in the classical and
FFS are a subpartitioning of the disk: inode space and space for data
blocks are separate. information contained in an inode. the direct,
indirect, doubly and triply indirect blocks.
