<s>
IBM	B-Operating_System
LAN	I-Operating_System
Server	I-Operating_System
is	O
a	O
discontinued	O
network	B-Protocol
operating	I-Protocol
system	I-Protocol
introduced	O
by	O
International	O
Business	O
Machines	O
(	O
IBM	O
)	O
in	O
1988	O
.	O
</s>
<s>
LAN	B-Operating_System
Server	I-Operating_System
started	O
as	O
a	O
close	O
cousin	O
of	O
Microsoft	O
's	O
LAN	B-Algorithm
Manager	I-Algorithm
and	O
first	O
shipped	O
in	O
early	O
1988	O
.	O
</s>
<s>
It	O
was	O
originally	O
designed	O
to	O
run	O
on	O
top	O
of	O
Operating	B-Application
System/2	I-Application
(	O
OS/2	B-Application
)	O
Extended	O
Edition	O
.	O
</s>
<s>
The	O
network	O
client	O
was	O
called	O
IBM	O
LAN	B-General_Concept
Requester	O
and	O
was	O
included	O
with	O
OS/2	B-Application
EE	O
1.1	O
by	O
default	O
.	O
</s>
<s>
Examples	O
include	O
the	O
IBM	B-Application
OS/2	I-Application
File/Print	O
Client	O
,	O
IBM	B-Application
OS/2	I-Application
Peer	O
,	O
and	O
client	O
software	O
for	O
Microsoft	B-Application
Windows	I-Application
.	O
)	O
</s>
<s>
Here	O
the	O
short	O
term	O
LAN	B-Operating_System
Server	I-Operating_System
refers	O
to	O
the	O
IBM	B-Application
OS/2	I-Application
LAN	B-Operating_System
Server	I-Operating_System
product	O
.	O
</s>
<s>
There	O
were	O
also	O
LAN	B-Operating_System
Server	I-Operating_System
products	O
for	O
other	O
operating	O
systems	O
,	O
notably	O
AIX	B-Application
—	O
now	O
called	O
Fast	O
Connect	O
—	O
and	O
OS/400	B-Application
.	O
</s>
<s>
Predecessors	O
included	O
IBM	B-Operating_System
PC	I-Operating_System
LAN	I-Operating_System
Program	I-Operating_System
(	O
PCLP	B-Operating_System
)	O
.	O
</s>
<s>
Variants	O
included	O
LAN	B-Operating_System
Server	I-Operating_System
Ultimedia	O
(	O
optimized	O
for	O
network	O
delivery	O
of	O
multimedia	O
files	O
)	O
and	O
LAN	B-General_Concept
On-Demand	O
.	O
</s>
<s>
Add-ons	O
included	O
Directory	O
and	O
Security	O
Server	O
,	O
Print	O
Services	O
Facility/2	O
(	O
later	O
known	O
as	O
Advanced	O
Printing	O
)	O
,	O
Novell	B-Operating_System
NetWare	I-Operating_System
for	O
OS/2	B-Application
,	O
and	O
LAN	B-Operating_System
Server	I-Operating_System
for	O
Macintosh	B-Device
.	O
</s>
<s>
LAN	B-Operating_System
Server	I-Operating_System
pioneered	O
certain	O
file	O
and	O
print	O
sharing	O
concepts	O
such	O
as	O
domains	O
(	O
and	O
domain	B-Protocol
controllers	I-Protocol
)	O
,	O
networked	O
COM	B-Architecture
ports	I-Architecture
,	O
domain	O
aliases	O
,	O
and	O
automatic	O
printer	O
driver	O
selection	O
and	O
installation	O
.	O
</s>
