<s>
S-BASIC	B-Language
(	O
for	O
Structured	O
Basic	O
)	O
was	O
a	O
"	O
structured	O
"	O
BASIC	O
variant	O
,	O
distributed	O
with	O
Kaypro	O
CP/M	B-Application
systems	O
.	O
</s>
<s>
SBasic	B-Language
was	O
compatible	O
with	O
the	O
syntax	O
of	O
BASIC	O
,	O
a	O
programming	O
language	O
commonly	O
used	O
in	O
the	O
1970s	O
through	O
the	O
1980s	O
,	O
as	O
well	O
as	O
Fortran77	O
.	O
</s>
<s>
In	O
addition	O
,	O
SBasic	B-Language
offered	O
developers	O
structured	O
programming	O
concepts	O
,	O
including	O
recursion	O
and	O
nesting	O
.	O
</s>
<s>
Many	O
PL-1	O
programs	O
could	O
be	O
compiled	O
with	O
little	O
modification	O
,	O
though	O
SBasic	B-Language
did	O
not	O
offer	O
an	O
extensive	O
function	O
library	O
.	O
</s>
<s>
SBasic	B-Language
programs	O
had	O
the	O
ability	O
to	O
access	O
memory	O
areas	O
reserved	O
for	O
the	O
operating	O
system	O
unless	O
prohibited	O
from	O
doing	O
so	O
by	O
the	O
operating	O
system	O
itself	O
.	O
</s>
<s>
(	O
Kaypro	O
's	O
CP/M	B-Application
had	O
no	O
such	O
prohibitions	O
.	O
)	O
</s>
<s>
Unlike	O
BASIC	B-Language
interpreters	I-Language
that	O
stored	O
"	O
p-code	O
"	O
that	O
was	O
parsed	O
by	O
an	O
execution	O
module	O
,	O
SBasic	B-Language
was	O
a	O
two-pass	O
compiler	O
,	O
ultimately	O
producing	O
.com	O
files	O
that	O
were	O
executable	O
.	O
</s>
<s>
Not	O
to	O
be	O
confused	O
with	O
the	O
namesake	O
SBasic	B-Language
(	O
S	O
for	O
Spectral	O
Basic	O
)	O
Programming	O
Language	O
for	O
the	O
commercial	O
Spectral	O
UV-Visible	O
software	O
.	O
</s>
<s>
Jerry	O
Pournelle	O
in	O
1983	O
wrote	O
that	O
S-BASIC	B-Language
"	O
is	O
quite	O
nice	O
"	O
,	O
stating	O
that	O
it	O
"	O
rivals	O
CB-80	O
"	O
.	O
</s>
<s>
He	O
presumed	O
that	O
Kaypro	O
users	O
would	O
"	O
will	O
begin	O
by	O
using	O
Microsoft	O
MBASIC	B-Language
,	O
then	O
start	O
translating	O
their	O
programs	O
into	O
S-BASIC	B-Language
and	O
learn	O
more	O
about	O
structured	O
programming	O
"	O
.	O
</s>
<s>
Pournelle	O
added	O
,	O
"	O
If	O
I	O
had	O
to	O
give	O
an	O
award	O
for	O
the	O
most	O
unreadable	O
computer	O
document	O
I	O
've	O
ever	O
seen	O
,	O
the	O
original	O
S-BASIC	B-Language
manual	O
would	O
win	O
hands	O
down	O
"	O
;	O
however	O
,	O
Kaypro	O
had	O
rewritten	O
it	O
and	O
"	O
is	O
a	O
great	O
deal	O
more	O
sensible	O
"	O
.	O
</s>
