<s>
InterNetNews	B-Application
(	O
INN	O
)	O
is	O
a	O
Usenet	B-Application
news	I-Application
server	O
package	O
,	O
originally	O
released	O
by	O
Rich	B-Application
Salz	I-Application
in	O
1991	O
,	O
and	O
presented	O
at	O
the	O
Summer	O
1992	O
USENIX	B-Operating_System
conference	O
in	O
San	O
Antonio	O
,	O
Texas	O
.	O
</s>
<s>
It	O
was	O
the	O
first	O
news	B-Application
server	I-Application
with	O
integrated	O
NNTP	B-Protocol
functionality	O
.	O
</s>
<s>
While	O
previous	O
servers	O
processed	O
articles	O
individually	O
or	O
in	O
batches	O
,	O
innd	B-Application
is	O
a	O
single	O
continuously	O
running	O
process	O
that	O
receives	O
articles	O
from	O
the	O
network	O
,	O
files	O
them	O
,	O
and	O
records	O
what	O
remote	O
hosts	O
should	O
receive	O
them	O
.	O
</s>
<s>
Readers	O
can	O
access	O
articles	O
directly	O
from	O
the	O
disk	O
in	O
the	O
same	O
manner	O
as	O
B	B-Application
News	I-Application
and	O
C	B-Application
News	I-Application
,	O
but	O
an	O
included	O
program	O
,	O
called	O
nnrpd	O
,	O
also	O
serves	O
newsreaders	B-Protocol
that	O
employ	O
NNTP	B-Protocol
.	O
</s>
<s>
A	O
later	O
improvement	O
was	O
the	O
Cyclical	B-Application
News	I-Application
Filesystem	I-Application
(	O
CNFS	B-Application
)	O
,	O
which	O
sequentially	O
stores	O
articles	O
in	O
large	O
on-disk	O
buffers	O
.	O
</s>
<s>
Like	O
innd	B-Application
,	O
innfeed	O
operates	O
continuously	O
to	O
feed	O
articles	O
out	O
to	O
other	O
servers	O
,	O
while	O
the	O
earlier	O
innxmit	O
processed	O
them	O
in	O
batches	O
.	O
</s>
<s>
This	O
combination	O
allows	O
articles	O
to	O
be	O
received	O
and	O
redistributed	O
with	O
virtually	O
no	O
latency	O
,	O
and	O
has	O
substantially	O
changed	O
the	O
nature	O
of	O
Usenet	B-Application
interaction	O
by	O
reducing	O
the	O
time	O
for	O
messages	O
to	O
be	O
posted	O
,	O
read	O
across	O
the	O
network	O
and	O
answered	O
,	O
from	O
hours	O
or	O
days	O
,	O
to	O
seconds	O
or	O
minutes	O
.	O
</s>
