<s>
The	O
ARC	B-Application
Macro	I-Application
Language	I-Application
(	O
AML	O
)	O
is	O
a	O
proprietary	B-Application
high-level	B-Language
algorithmic	O
language	B-Language
for	O
generating	O
applications	O
in	O
ArcInfo	B-Application
.	O
</s>
<s>
It	O
was	O
designed	O
by	O
ESRI	O
in	O
1986	O
specifically	O
for	O
their	O
command	O
line-driven	O
ARC/INFO	B-Application
geographical	B-Application
information	I-Application
system	I-Application
.	O
</s>
<s>
AML	O
's	O
syntax	O
was	O
based	O
on	O
CPL	O
(	O
the	O
shell	B-Language
language	I-Language
of	O
the	O
PRIMOS	B-General_Concept
operating	O
system	O
)	O
because	O
the	O
majority	O
of	O
ARC/INFO	B-Application
installations	O
at	O
that	O
time	O
ran	O
on	O
Prime	O
computers	O
.	O
</s>
<s>
The	O
macro	O
language	B-Language
features	O
include	O
the	O
ability	O
to	O
create	O
onscreen	O
menus	O
,	O
use	O
and	O
assign	O
variables	O
,	O
control	O
statement	O
execution	O
,	O
and	O
get	O
and	O
use	O
map	O
or	O
page	O
unit	O
coordinates	O
.	O
</s>
<s>
Although	O
the	O
language	B-Language
is	O
still	O
supported	O
by	O
ESRI	O
in	O
modern	O
ArcInfo	B-Application
Workstation	O
environments	O
,	O
the	O
language	B-Language
has	O
been	O
superseded	O
by	O
the	O
geoprocessing	O
framework	O
,	O
which	O
is	O
part	O
of	O
the	O
ArcGIS	B-Application
suite	O
and	O
allows	O
programming	O
access	O
using	O
ArcObjects	B-General_Concept
through	O
VBA	B-Language
or	O
Python	B-Language
.	O
</s>
