<s>
In	O
computer	B-Architecture
networking	I-Architecture
,	O
DECserver	B-Device
initially	O
referred	O
to	O
a	O
highly	O
successful	O
family	O
of	O
asynchronous	O
console	B-Device
server	I-Device
/	O
terminal	B-Device
server	I-Device
/	O
print	B-Application
server	I-Application
products	O
introduced	O
by	O
Digital	O
Equipment	O
Corporation	O
(	O
DEC	O
)	O
and	O
later	O
referred	O
to	O
a	O
class	O
of	O
UNIX-variant	O
application	O
and	O
file	O
server	O
products	O
based	O
upon	O
the	O
MIPS	B-Device
processor	O
.	O
</s>
<s>
In	O
February	O
1998	O
,	O
DEC	O
sold	O
its	O
Network	O
Products	O
Business	O
to	O
Cabletron	O
,	O
which	O
then	O
spun	O
out	O
as	O
its	O
own	O
company	O
,	O
Digital	B-Architecture
Networks	I-Architecture
(	O
later	O
known	O
as	O
Vnetek	O
Communications	O
)	O
,	O
in	O
September	O
2000	O
.	O
</s>
<s>
DECservers	B-Device
were	O
introduced	O
in	O
1985	O
.	O
</s>
<s>
The	O
first	O
model	O
was	O
the	O
DECserver	B-Device
100	O
.	O
</s>
<s>
This	O
and	O
all	O
subsequent	O
DECserver	B-Device
models	O
used	O
the	O
Local	B-General_Concept
Area	I-General_Concept
Transport	I-General_Concept
(	O
LAT	O
)	O
protocol	O
which	O
was/is	O
also	O
supported	O
by	O
many	O
DEC	O
operating	O
systems	O
including	O
VMS	B-Operating_System
,	O
RSX-11	B-Application
,	O
RSTS/E	B-Operating_System
and	O
Ultrix	B-Operating_System
(	O
an	O
implementation	O
of	O
UNIX	B-Application
)	O
.	O
</s>
<s>
All	O
DECservers	B-Device
were	O
designed	O
to	O
boot	O
their	O
operating	O
systems	O
across	O
the	O
network	O
using	O
DECnet	B-Protocol
MOP	O
Maintenance	B-Operating_System
Operations	I-Operating_System
Protocol	I-Operating_System
with	O
later	O
models	O
supporting	O
TCP/IP	B-Protocol
booting	O
using	O
bootp	B-Device
protocol	O
.	O
</s>
<s>
The	O
DECserver	B-Device
100	O
Terminal	B-Device
Server	I-Device
was	O
a	O
network	O
terminal	O
switch	O
for	O
Ethernet	O
Local	O
Area	O
Networks	O
,	O
providing	O
a	O
convenient	O
method	O
to	O
logically	O
connect	O
up	O
to	O
eight	O
DIGITAL	O
asynchronous	O
terminals	O
to	O
one	O
or	O
more	O
service	O
nodes	O
(	O
hosts	O
)	O
on	O
an	O
Ethernet	O
.	O
</s>
<s>
Through	O
the	O
use	O
of	O
a	O
simple	O
command	O
,	O
users	O
could	O
establish	O
a	O
logical	O
connection	O
,	O
called	O
a	O
session	O
,	O
to	O
any	O
local	O
service	O
node	O
that	O
implemented	O
the	O
LAT	B-General_Concept
protocol	I-General_Concept
.	O
</s>
<s>
The	O
DECserver	B-Device
200	O
was	O
a	O
network	O
terminal	O
switch	O
for	O
Ethernet	O
Local	O
Area	O
Networks	O
,	O
providing	O
a	O
convenient	O
method	O
to	O
logically	O
connect	O
up	O
to	O
eight	O
Digital	O
asynchronous	O
terminals	O
to	O
one	O
or	O
more	O
service	O
nodes	O
(	O
hosts	O
)	O
on	O
an	O
Ethernet	O
.	O
</s>
<s>
The	O
DECserver	B-Device
200	O
also	O
provided	O
the	O
capability	O
to	O
connect	O
host	O
systems	O
that	O
did	O
not	O
support	O
the	O
LAT	B-General_Concept
protocol	I-General_Concept
,	O
Digital	O
personal	O
computers	O
,	O
and	O
dial-out	O
modems	O
directly	O
to	O
ports	O
on	O
the	O
server	O
.	O
</s>
<s>
The	O
DECserver	B-Device
200	O
implemented	O
the	O
Local	B-General_Concept
Area	I-General_Concept
Transport	I-General_Concept
(	O
LAT	O
)	O
protocol	O
for	O
communication	O
with	O
service	O
nodes	O
that	O
implemented	O
this	O
protocol	O
on	O
the	O
same	O
Ethernet	O
.	O
</s>
<s>
There	O
were	O
two	O
options	O
of	O
DECserver	B-Device
200	O
hardware	O
:	O
the	O
DECserver	B-Device
200/MC	O
,	O
which	O
contained	O
RS-232-C	O
lines	O
with	O
full	O
modem	O
control	O
(	O
DSRVB-AB	O
)	O
and	O
the	O
DECserver	B-Device
200/DL	O
,	O
which	O
contained	O
DECconnect	O
lines	O
with	O
data	O
leads	O
only	O
(	O
DSRVB-BB	O
)	O
.	O
</s>
<s>
A	O
special	O
cable	O
connects	O
the	O
DECserver	B-Device
to	O
a	O
"	O
harmonica	O
"	O
,	O
with	O
the	O
same	O
style	O
of	O
mass-connector	O
,	O
plus	O
8	O
MMJ	O
jacks	O
,	O
positioned	O
close	O
to	O
the	O
terminals	O
to	O
be	O
connected	O
.	O
</s>
<s>
The	O
DECserver	B-Device
250	O
was	O
a	O
network	O
server	O
for	O
printers	O
for	O
Ethernet	O
Local	O
Area	O
Networks	O
,	O
consisting	O
of	O
a	O
single	O
box	O
that	O
provided	O
the	O
following	O
:	O
(	O
2	O
)	O
Digital	O
Parallel	O
printer	O
ports	O
,	O
each	O
of	O
which	O
used	O
a	O
male	O
37-pin	O
connector	O
,	O
(	O
4	O
)	O
EIA	O
RS-232-C/CCITT	O
V.24	O
asynchronous	O
line	O
interfaces	O
for	O
connecting	O
three	O
serial	O
printers	O
and	O
one	O
serial	O
printer	O
or	O
terminal	O
,	O
and	O
(	O
1	O
)	O
Ethernet	O
interface	O
transceiver	O
port	O
.	O
</s>
<s>
The	O
DECserver	B-Device
250	O
implemented	O
the	O
Local	B-General_Concept
Area	I-General_Concept
Transport	I-General_Concept
(	O
LAT	O
)	O
protocol	O
for	O
communication	O
with	O
service	O
nodes	O
that	O
implemented	O
this	O
protocol	O
on	O
the	O
same	O
Ethernet	O
.	O
</s>
<s>
Software	O
that	O
ran	O
on	O
the	O
DECserver	B-Device
250	O
was	O
down-line	O
loaded	O
over	O
the	O
network	O
from	O
a	O
Phase	O
IV	O
DECnet	B-Protocol
load	O
host	O
.	O
</s>
<s>
The	O
DECserver	B-Device
300	O
Terminal	B-Device
Server	I-Device
was	O
an	O
Ethernet	O
Communications	O
Server	O
for	O
Ethernet	O
Local	O
Area	O
Networks	O
,	O
providing	O
a	O
convenient	O
method	O
to	O
logically	O
connect	O
up	O
to	O
sixteen	O
digital	O
asynchronous	O
terminals	O
to	O
one	O
or	O
more	O
service	O
nodes	O
(	O
hosts	O
)	O
on	O
an	O
Ethernet	O
.	O
</s>
<s>
The	O
DECserver	B-Device
300	O
used	O
MMJs	O
(	O
Modified	O
Modular	O
Jacks	O
)	O
for	O
the	O
attachment	O
of	O
asynchronous	O
devices	O
.	O
</s>
<s>
The	O
DECserver	B-Device
300	O
utilized	O
the	O
EIA	O
423-A	O
electrical	O
interface	O
standard	O
for	O
local	O
connections	O
.	O
</s>
<s>
The	O
DECserver	B-Device
300	O
implemented	O
the	O
LAT	B-General_Concept
protocol	I-General_Concept
for	O
communication	O
with	O
service	O
nodes	O
that	O
implemented	O
this	O
protocol	O
on	O
the	O
same	O
Ethernet	O
.	O
</s>
<s>
The	O
DECserver	B-Device
300	O
also	O
implemented	O
the	O
TCP/IP	B-Protocol
protocol	I-Protocol
suite	I-Protocol
for	O
communication	O
with	O
host	O
systems	O
that	O
implemented	O
TCP/IP	B-Protocol
.	O
</s>
<s>
The	O
DECserver	B-Device
500	O
series	O
server	O
was	O
an	O
Ethernet	O
Communications	O
Server	O
for	O
Ethernet	O
Local	O
Area	O
Networks	O
(	O
LANs	O
)	O
,	O
configurable	O
to	O
provide	O
128	O
EIA-423-A	O
or	O
64	O
RS-232	O
asynchronous	O
port	O
connections	O
to	O
DEC	O
asynchronous	O
terminals	O
.	O
</s>
<s>
Both	O
RS-232	O
,	O
via	O
the	O
8	O
port	O
CXY08	O
Q-Bus	B-Architecture
communication	O
option	O
card	O
,	O
and	O
EIA-423-A	O
,	O
via	O
the	O
16	O
port	O
CXA16	O
communication	O
option	O
card	O
and	O
EIA-422	O
16	O
port	O
CXB16	O
communication	O
option	O
card	O
could	O
be	O
mixed	O
together	O
in	O
any	O
combination	O
from	O
two	O
to	O
eight	O
cards	O
in	O
one	O
server	O
.	O
</s>
<s>
The	O
DECserver	B-Device
510	O
and	O
550	O
would	O
also	O
support	O
CXM04	O
IBM	B-Operating_System
3270	I-Operating_System
Terminal	O
option	O
cards	O
,	O
but	O
on	O
VMS	B-Operating_System
only	O
.	O
</s>
<s>
The	O
DECserver	B-Device
500	O
series	O
server	O
provided	O
a	O
convenient	O
method	O
to	O
connect	O
logically	O
up	O
to	O
128	O
Digital	O
asynchronous	O
terminals	O
to	O
one	O
or	O
more	O
service	O
nodes	O
(	O
hosts	O
)	O
on	O
an	O
Ethernet	O
.	O
</s>
<s>
The	O
DECserver	B-Device
500	O
series	O
server	O
also	O
allowed	O
for	O
ULTRIX	B-Operating_System
host-initiated	O
connections	O
to	O
asynchronous	O
printers	O
.	O
</s>
<s>
The	O
DECserver	B-Device
500	O
series	O
server	O
implemented	O
the	O
LAT	B-General_Concept
protocol	I-General_Concept
for	O
communication	O
with	O
service	O
nodes	O
that	O
implemented	O
this	O
protocol	O
on	O
the	O
same	O
Ethernet	O
.	O
</s>
<s>
The	O
500	O
series	O
differed	O
from	O
other	O
DECservers	B-Device
in	O
that	O
the	O
configuration	O
was	O
not	O
stored	O
in	O
nonvolatile	O
storage	O
locally	O
on	O
the	O
server	O
itself	O
,	O
but	O
rather	O
downline	O
loaded	O
from	O
a	O
file	O
on	O
a	O
MOP	O
host	O
.	O
</s>
<s>
Configuration	O
changes	O
which	O
needed	O
to	O
remain	O
permanently	O
had	O
to	O
be	O
changed	O
locally	O
on	O
the	O
DECserver	B-Device
and	O
also	O
updated	O
on	O
the	O
MOP	O
host	O
using	O
the	O
OpenVMS	B-Operating_System
Terminal	B-Device
Server	I-Device
Configurator	O
utility	O
(	O
SYS$	O
COMMON	O
:	O
[	O
DECSERVER ]DS5CFG	O
on	O
VMS	B-Operating_System
or	O
/usr/lib/dnet/tsc	O
on	O
Ultrix	B-Operating_System
)	O
so	O
that	O
it	O
would	O
return	O
the	O
next	O
reboot	O
.	O
</s>
<s>
The	O
500	O
and	O
550	O
models	O
are	O
based	O
on	O
the	O
PDP-11/53	O
chipset	O
with	O
512kb	O
or	O
1.5mb	O
of	O
on-board	O
ram	O
and	O
can	O
be	O
reverted	O
to	O
a	O
full	O
PDP-11/53	O
system	O
with	O
a	O
PROM	O
swap	O
and	O
console	O
port	O
re-wire	O
.	O
</s>
<s>
Nicknamed	O
Plain	O
Old	O
Terminal	B-Device
Server	I-Device
(	O
POTS	O
)	O
,	O
the	O
DECserver	B-Device
90L	O
ran	O
ROM-based	O
firmware	O
and	O
supported	O
LAT	O
only	O
.	O
</s>
<s>
The	O
DECserver	B-Device
90L+	O
terminal	B-Device
server	I-Device
was	O
an	O
eight	O
line	O
terminal	B-Device
server	I-Device
that	O
supported	O
terminals	O
and	O
printers	O
.	O
</s>
<s>
DECserver	B-Device
90L+	O
supported	O
the	O
LAT	B-General_Concept
protocol	I-General_Concept
and	O
was	O
designed	O
to	O
work	O
in	O
a	O
ThinWire	O
Ethernet	O
Local	O
Area	O
Network	O
(	O
LAN	O
)	O
,	O
</s>
<s>
Designed	O
for	O
asynchronous	O
connections	O
up	O
to	O
57.6	O
kbit/s	O
to	O
UNIX	B-Application
,	O
ULTRIX	B-Operating_System
,	O
VMS	B-Operating_System
,	O
DOS	O
and	O
multi-vendor	O
network	O
services	O
.	O
</s>
<s>
The	O
DECserver	B-Device
90TL	O
supported	O
TCP/IP	B-Protocol
protocols	I-Protocol
and	O
several	O
remote	O
management	O
systems	O
.	O
</s>
<s>
There	O
were	O
three	O
iterations	O
of	O
the	O
DECserver	B-Device
90M	O
:	O
DSRVH-M*	O
,	O
-A*	O
,	O
configured	O
without	O
Flash	O
RAM	O
;	O
the	O
DSRVH-N*	O
,	O
-D*	O
,	O
configured	O
with	O
1	O
MB	O
of	O
Flash	O
RAM	O
;	O
DSRVH-P*	O
,	O
-R*	O
configured	O
with	O
2	O
MB	O
of	O
Flash	O
RAM	O
.	O
</s>
<s>
All	O
supported	O
expanded	O
multi-protocol	O
connections	O
via	O
LAT	O
,	O
Telnet	B-Protocol
,	O
SLIP	O
,	O
TN3270	O
,	O
CSLIP	O
and	O
PPP	O
.	O
</s>
<s>
The	O
DECserver	B-Device
900MC	O
is	O
an	O
asynchronous	O
network	O
access	O
server	O
with	O
eight	O
on-board	O
V.34	O
modems	O
.	O
</s>
<s>
The	O
DECserver	B-Device
900GM	O
was	O
a	O
network	O
access	O
server	O
that	O
supported	O
up	O
to	O
16	O
full	O
modem	O
control	O
ports	O
,	O
or	O
32	O
eight	O
–	O
wire	O
partial	O
modem	O
control	O
ports	O
.	O
</s>
<s>
The	O
DECserver	B-Device
900GMX	O
was	O
identical	O
to	O
the	O
DECserver	B-Device
900GM	O
,	O
except	O
that	O
it	O
supported	O
up	O
to	O
8	O
full	O
modem	O
control	O
ports	O
,	O
or	O
16	O
eight	O
–	O
wire	O
partial	O
modem	O
control	O
ports	O
.	O
</s>
<s>
The	O
DECserver	B-Device
900GM	O
was	O
configured	O
with	O
four	O
68-pin	O
D-connectors	O
(	O
two	O
for	O
the	O
DECserver	B-Device
900GMx	O
)	O
,	O
and	O
provided	O
full	O
or	O
limited	O
modem	O
control	O
.	O
</s>
<s>
The	O
DECserver	B-Device
900GM	O
included	O
4	O
MB	O
of	O
standard	O
memory	O
,	O
and	O
could	O
be	O
expanded	O
to	O
8	O
MB	O
.	O
</s>
<s>
The	O
DECserver	B-Device
900TM	O
is	O
a	O
32-port	O
network	O
access	O
server	O
that	O
connects	O
asynchronous	O
devices	O
,	O
including	O
terminals	O
,	O
printers	O
,	O
modems	O
,	O
or	O
PCs	O
to	O
an	O
Ethernet	O
local	O
area	O
network	O
(	O
LAN	O
)	O
.	O
</s>
<s>
The	O
DECserver	B-Device
900TM	O
is	O
configured	O
with	O
32	O
MJ8	O
(	O
RJ-45	O
)	O
connectors	O
,	O
and	O
provides	O
limited	O
modem	O
control	O
with	O
the	O
8-pin	O
connectors	O
.	O
</s>
<s>
The	O
DECserver	B-Device
900TM	O
includes	O
4	O
MB	O
of	O
standard	O
memory	O
,	O
and	O
can	O
be	O
expanded	O
to	O
8	O
MB	O
.	O
</s>
<s>
The	O
original	O
DECserver	B-Device
700-08	O
(	O
-A*	O
,	O
-B*	O
)	O
was	O
replaced	O
in	O
1993	O
with	O
the	O
–	O
E*	O
and	O
–	O
F*	O
models	O
.	O
</s>
<s>
The	O
original	O
units	O
ran	O
DECserver	B-Device
700	O
software	O
and	O
were	O
configured	O
with	O
1	O
MB	O
of	O
operational	O
memory	O
.	O
</s>
<s>
The	O
follow	O
on	O
units	O
were	O
configured	O
with	O
4	O
MB	O
of	O
operational	O
memory	O
,	O
an	O
internal	O
slot	O
for	O
a	O
2	O
MB	O
Flash	O
card	O
and	O
ran	O
DNAS	O
(	O
DECserver	B-Device
Network	O
Access	O
Software	O
)	O
.	O
</s>
<s>
The	O
original	O
DECserver	B-Device
700-16	O
was	O
replaced	O
in	O
1993	O
with	O
the	O
–	O
G*	O
and	O
–	O
H*	O
models	O
.	O
</s>
<s>
The	O
original	O
units	O
ran	O
DECserver	B-Device
700	O
software	O
and	O
were	O
configured	O
with	O
1	O
MB	O
of	O
operational	O
memory	O
.	O
</s>
<s>
The	O
–	O
G*	O
and	O
–	O
H*	O
models	O
were	O
configured	O
with	O
4	O
MB	O
of	O
operational	O
memory	O
,	O
an	O
internal	O
slot	O
for	O
a	O
2	O
MB	O
Flash	O
card	O
and	O
ran	O
DNAS	O
(	O
DECserver	B-Device
Network	O
Access	O
Software	O
)	O
.	O
</s>
<s>
The	O
DECserver	B-Device
90M+	O
was	O
introduced	O
in	O
2003	O
.	O
</s>
<s>
The	O
DECserver	B-Device
90M+	O
supports	O
up	O
to	O
eight	O
sessions	O
per	O
port	O
.	O
</s>
<s>
It	O
runs	O
DECserver	B-Device
Network	O
Access	O
Software	O
(	O
DNAS	O
)	O
.	O
</s>
<s>
Unlike	O
the	O
DECserver	B-Device
90M	O
models	O
,	O
the	O
DECserver	B-Device
90M+	O
does	O
not	O
have	O
a	O
BNC	O
connector	O
.	O
</s>
<s>
This	O
model	O
was	O
designed	O
to	O
replace	O
the	O
DECserver	B-Device
700-08	O
and	O
was	O
introduced	O
in	O
2003	O
.	O
</s>
<s>
The	O
DECserver	B-Device
708	O
is	O
Ethernet-based	O
and	O
supports	O
10BaseT	O
Ethernet	O
directly	O
,	O
and	O
ThinWire	O
Ethernet/IEEE	O
802.3	O
through	O
an	O
adapter	O
.	O
</s>
<s>
The	O
DECserver	B-Device
708	O
can	O
download	O
the	O
software	O
image	O
from	O
the	O
network	O
or	O
from	O
the	O
Flash	O
RAM	O
option	O
if	O
installed	O
.	O
</s>
<s>
The	O
DECserver	B-Device
708	O
supports	O
up	O
to	O
4	O
MB	O
of	O
memory	O
.	O
</s>
<s>
This	O
model	O
was	O
designed	O
to	O
replace	O
the	O
DECserver	B-Device
700-16	O
and	O
was	O
introduced	O
in	O
2000	O
.	O
</s>
<s>
Multiple	O
Telnet	B-Protocol
sessions	O
per	O
port	O
.	O
</s>
<s>
Telnet	B-Protocol
,	O
LAT	O
,	O
TN3270	O
,	O
Rlogin	O
,	O
LPD	O
and	O
DNS	O
.	O
</s>
<s>
The	O
DECserver	B-Device
732	O
offers	O
the	O
same	O
features	O
as	O
the	O
DECserver	B-Device
716	O
,	O
with	O
32	O
ports	O
.	O
</s>
<s>
Introduced	O
in	O
2004	O
,	O
the	O
ConX4	O
offers	O
the	O
same	O
functionality	O
as	O
the	O
DECserver	B-Device
90M+	O
in	O
a	O
smaller	O
port	O
density	O
configuration	O
,	O
with	O
10/100	O
LAN	O
connectivity	O
and	O
port	O
speeds	O
to	O
230.4	O
kbit/s	O
.	O
</s>
<s>
DECserver	B-Device
Operating	O
Software	O
:	O
DNAS	O
(	O
DECserver	B-Device
Network	O
Access	O
Software	O
)	O
includes	O
several	O
software	O
images	O
that	O
run	O
on	O
the	O
different	O
hardware	O
units	O
.	O
</s>
<s>
The	O
DECserver	B-Device
is	O
configured	O
at	O
the	O
factory	O
to	O
request	O
the	O
correct	O
image	O
at	O
initialization	O
.	O
</s>
<s>
As	O
well	O
as	O
connecting	O
terminals	O
and	O
being	O
used	O
as	O
standard	O
terminal	B-Device
servers	I-Device
,	O
DECservers	B-Device
also	O
support	O
reverse	O
connections	O
(	O
either	O
LAT	O
,	O
or	O
on	O
later	O
models	O
Telnet	B-Protocol
)	O
allowing	O
them	O
to	O
be	O
used	O
as	O
print	B-Application
servers	I-Application
or	O
console	B-Device
servers	I-Device
.	O
</s>
<s>
The	O
following	O
are	O
the	O
filenames	O
used	O
for	O
the	O
firmware	O
files	O
that	O
get	O
downloaded	O
by	O
various	O
DECserver	B-Device
terminal	B-Device
servers	I-Device
when	O
they	O
boot	O
up	O
and	O
initialize	O
:	O
</s>
<s>
These	O
filenames	O
are	O
specified	O
in	O
a	O
network	O
request	O
from	O
the	O
terminal	B-Device
server	I-Device
at	O
boot	O
time	O
,	O
to	O
initiate	O
a	O
MOP	O
download	O
of	O
the	O
firmware	O
.	O
</s>
<s>
On	O
an	O
Alpha	O
,	O
Itanium	O
or	O
VAX	O
system	O
running	O
the	O
OpenVMS	B-Operating_System
operating	O
system	O
,	O
these	O
files	O
are	O
located	O
in	O
a	O
directory	O
named	O
SYS$SYSROOT:[MOM$SYSTEM]	O
which	O
has	O
system	O
logical	O
names	O
of	O
MOM$SYSTEM	O
and	O
MOM$LOAD	O
if	O
DECnet	B-Protocol
has	O
been	O
started	O
.	O
</s>
<s>
The	O
DECserver	B-Device
device	O
's	O
hardware	O
address	O
must	O
be	O
specified	O
in	O
the	O
DECnet	B-Protocol
node	O
database	O
in	O
order	O
for	O
the	O
firmware	O
file	O
to	O
be	O
loaded	O
.	O
</s>
<s>
The	O
firmware	O
's	O
filename	O
is	O
not	O
specified	O
in	O
the	O
DECnet	B-Protocol
database	O
,	O
it	O
is	O
found	O
in	O
a	O
network	O
request	O
from	O
the	O
terminal	B-Device
server	I-Device
.	O
</s>
<s>
If	O
the	O
firmware	O
file	O
does	O
not	O
exist	O
in	O
the	O
MOM$SYSTEM	O
directory	O
at	O
the	O
time	O
of	O
a	O
load	O
request	O
,	O
the	O
terminal	B-Device
server	I-Device
will	O
not	O
complete	O
its	O
boot	O
process	O
,	O
and	O
an	O
error	O
message	O
will	O
be	O
displayed	O
on	O
the	O
OpenVMS	B-Operating_System
operator	O
's	O
console	O
(	O
and	O
written	O
to	O
SYS$	O
MANAGER:OPERATOR.LOG	O
)	O
and	O
this	O
message	O
will	O
give	O
the	O
name	O
of	O
the	O
missing	O
file	O
.	O
</s>
