<s>
ALGOL	B-Language
68S	I-Language
is	O
a	O
programming	O
language	O
designed	O
as	O
a	O
subset	O
of	O
ALGOL	B-Language
68	I-Language
,	O
to	O
allow	O
compiling	O
via	O
a	O
one-pass	B-Language
compiler	I-Language
.	O
</s>
<s>
It	O
was	O
mostly	O
for	O
numerical	B-General_Concept
analysis	I-General_Concept
.	O
</s>
<s>
A	O
compiler	O
for	O
ALGOL	B-Language
68S	I-Language
was	O
available	O
for	O
the	O
PDP-11	B-Device
,	O
written	O
in	O
the	O
language	O
BLISS	B-Language
.	O
</s>
<s>
The	O
multiprocessor	O
version	O
designed	O
for	O
the	O
C.mmp	B-Operating_System
has	O
been	O
preserved	O
at	O
the	O
PDP	O
Unix	O
Preservation	O
Society	O
archive	O
.	O
</s>
<s>
Charles	O
H	O
.	O
Lindsey	O
created	O
another	O
implementation	O
of	O
ALGOL	B-Language
68	I-Language
,	O
named	O
ALGOL	B-Language
68S	I-Language
,	O
for	O
Sun-3	B-Device
,	O
Sun	B-Architecture
SPARC	I-Architecture
(	O
under	O
SunOS	B-Operating_System
4.1	I-Operating_System
)	O
,	O
Sun	B-Architecture
SPARC	I-Architecture
(	O
under	O
Solaris	B-Application
2	O
)	O
,	O
Atari	B-Device
ST	I-Device
(	O
under	O
GEMDOS	O
)	O
and	O
Acorn	B-Device
Archimedes	I-Device
(	O
under	O
RISC	B-Operating_System
OS	I-Operating_System
)	O
,	O
c.f.	O
</s>
<s>
The	O
main	O
differences	O
between	O
ALGOL	B-Language
68	I-Language
and	O
68S	O
,	O
as	O
summarised	O
from	O
Appendix	O
4	O
of	O
the	O
Informal	O
Introduction	O
,	O
include	O
:	O
</s>
