Page 94 - slides.dvi

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First
What
Operating
but
can
are
allow
allow
Systems
Naming:
access
Directory
Two-level
naming
Grouping:
—
Efficiency:
still
the
grouping
have
Single-level:
one
two
attempts:
via
no
user
file
(or
one
Directories
logical
same
Name
problem
locating
directory:
problem
have
a
more
grouping
pathname
requirements
one
file
directory
convenience
filename
grouping
Space
for
several
(e.g.
of
for
generally
(I)
our
quickly.
shared
capability.
N
directory
files
)
by
different
name
per
different
users
between
user
to
user
names
all
space?
properties
bob:hello.java)
have
users
(e.g.
the
all
same
Java
name
for
programs,
all
different
files
90
games)