<s>
PAL-11R	B-Device
is	O
an	O
assembly	O
language	O
,	O
and	O
an	O
assembler	O
,	O
for	O
the	O
PDP-11	B-Device
'	O
s	O
disk	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
,	O
DOS-11	B-Operating_System
.	O
</s>
<s>
It	O
was	O
the	O
precursor	O
to	O
MACRO-11	B-Device
.	O
</s>
<s>
The	O
original	O
assembler	O
for	O
Unix	O
,	O
as	B-Device
,	O
was	O
based	O
on	O
PAL-11R	B-Device
.	O
</s>
