<s>
DG/L	B-Language
is	O
a	O
programming	O
language	O
developed	O
by	O
Data	O
General	O
Corp	O
for	O
the	O
Nova	B-Device
,	O
Eclipse	B-Device
,	O
and	O
Eclipse/MV	B-Device
families	O
of	O
minicomputers	B-Architecture
in	O
the	O
1970s	O
and	O
early	O
1980s	O
.	O
</s>
<s>
"	O
Old	O
"	O
Algol	B-Language
,	O
which	O
ran	O
on	O
and	O
generated	O
code	O
for	O
the	O
Nova	B-Device
series	O
of	O
16	O
bit	O
computers	O
.	O
</s>
<s>
It	O
was	O
only	O
available	O
on	O
the	O
RDOS	B-Operating_System
family	O
of	O
operating	O
systems	O
.	O
</s>
<s>
DG/L	B-Language
,	O
which	O
was	O
developed	O
by	O
extensively	O
modifying	O
the	O
Fortran	O
5	O
optimizing	O
compiler	O
.	O
</s>
<s>
This	O
compiler	O
ran	O
only	O
on	O
the	O
Eclipse	B-Device
and	O
Eclipse/MV	B-Device
family	O
of	O
computers	O
but	O
generated	O
optimized	O
code	O
for	O
the	O
Nova	B-Device
,	O
Eclipse	B-Device
and	O
Eclipse/MV	B-Device
(	O
Eagle	O
)	O
family	O
.	O
</s>
<s>
It	O
was	O
available	O
on	O
RDOS	B-Operating_System
,	O
AOS	O
and	O
AOS/VS	O
.	O
</s>
<s>
The	O
language	O
itself	O
was	O
an	O
extended	O
version	O
of	O
Algol	B-Language
60	I-Language
.	O
</s>
<s>
It	O
had	O
many	O
convenient	O
program	O
control	O
flow	O
features	O
,	O
but	O
being	O
designed	O
in	O
the	O
mid	O
70s	O
,	O
lacked	O
user	O
defined	O
data	B-General_Concept
structures	I-General_Concept
.	O
</s>
<s>
DG/L	B-Language
had	O
a	O
substantial	O
runtime	B-Library
library	I-Library
for	O
its	O
day	O
,	O
and	O
was	O
used	O
for	O
systems	B-Application
programming	I-Application
both	O
within	O
and	O
outside	O
of	O
Data	O
General	O
.	O
</s>
<s>
Originally	O
called	O
Algol/5	O
,	O
the	O
product	O
renamed	O
DG/L	B-Language
shortly	O
before	O
the	O
first	O
commercial	O
release	O
in	O
1978	O
.	O
</s>
<s>
After	O
the	O
first	O
commercial	O
release	O
,	O
targeting	O
16-bit	O
Eclipse	B-Device
and	O
Nova	B-Device
,	O
several	O
subsequent	O
updates	O
and	O
major	O
versions	O
were	O
released	O
,	O
approximately	O
one	O
a	O
year	O
.	O
</s>
<s>
Appendix	O
A	O
of	O
Data	O
General	O
's	O
1982	O
revision	O
of	O
its	O
DG/L	B-Language
Language	O
Reference	O
Manual	O
,	O
093-00229-01	O
describes	O
DG/L	B-Language
as	O
based	O
on	O
the	O
ALGOL	B-Language
60	I-Language
programming	I-Language
language	I-Language
,	O
but	O
gives	O
"	O
data	O
types	O
,	O
operations	O
and	O
statements	O
that	O
ALGOL	B-Language
60	I-Language
lacks	O
"	O
.	O
</s>
<s>
Algol	B-Language
60	I-Language
feature	O
As	O
described	O
in	O
Algol	B-Language
60	I-Language
report	O
paragraph	O
DG/	O
notes	O
Call	O
by	O
name	O
para	O
.	O
</s>
<s>
4.7.3.2	O
DG/L	B-Language
allows	O
procedure	O
parameters	O
as	O
type	O
PROCEDURE	O
,	O
allowing	O
procedures	O
to	O
be	O
passed	O
by	O
name	O
to	O
other	O
procedures	O
.	O
</s>
<s>
Nested	O
quotation	O
marks	O
in	O
literals	O
2.6.1	O
and	O
2.4.1	O
No	O
limit	O
on	O
length	O
of	O
identifiers	O
DG/L	B-Language
identifier	O
names	O
need	O
to	O
be	O
unique	O
within	O
the	O
first	O
32	O
characters	O
Two	O
division	O
operators	O
3.3.4.2	O
DG/L	B-Language
uses	O
"	O
/	O
"	O
for	O
both	O
real	O
and	O
integer	O
division	O
;	O
an	O
integer	O
divided	O
by	O
another	O
integer	O
implies	O
integer	O
division	O
(	O
e.g.	O
</s>
<s>
1/4	O
is	O
0	O
)	O
unless	O
the	O
compiler	O
's	O
global	O
/R	O
switch	O
is	O
used	O
Notation	O
of	O
10	O
<integer>  2.5.1  DG/L uses E <integer> (or D <integer> for double precision )  for "scientific" notation to show powers of ten A program consisting only of a <compound statement>  4.1.1   Non-ASCII characters ⋀,⋁,¬,⊃,≡,≤,≥,≠ as Boolean operators  3.4.6.1  DG/L allows instead: AND, OR, NOT, IMP, EQV, <= (or =< ) ,>= (or => ) , and <> (or >	O
<	O
)	O
as	O
well	O
as	O
XOR	O
Including	O
non-Algol	O
code	O
within	O
Algol	B-Language
procedures	O
4.7.8	O
Apart	O
from	O
the	O
FORTRAN	O
5	O
math	O
library	O
,	O
documentation	O
for	O
external	O
procedures	O
assumes	O
only	O
other	O
DG/L	B-Language
procedures	O
will	O
be	O
linked	O
in	O
.	O
</s>
<s>
Some	O
of	O
the	O
extensions	O
to	O
the	O
Algol	B-Language
60	I-Language
standard	O
introduced	O
in	O
DG/L	B-Language
or	O
carried	O
over	O
from	O
Data	O
General	O
's	O
previous	O
Algol	B-Language
implementation	O
of	O
1971	O
:	O
</s>
