An
____________________
____________________
is
the
primary
software
that
____________________
all
the
hardware
and
other
software
on
a
computer
.
The
operating
system
,
also
known
as
an
?
OS
,
?
interfaces
with
the
computer's
____________________
and
provides
services
that
____________________
can
use
.
The
operating
system
____________________
with
the
user
and
user's
devices
and
other
software
as
the
central
____________________
.
It
also
manages
the
attached
devices
,
applications
,
____________________
____________________
and
____________________
,
both
RAM
and
ROM
.
