<s>
DOPE	B-Language
,	O
short	O
for	O
Dartmouth	O
Oversimplified	O
Programming	O
Experiment	O
,	O
was	O
a	O
simple	O
programming	O
language	O
designed	O
by	O
John	O
Kemény	O
in	O
1962	O
to	O
offer	O
students	O
a	O
transition	O
from	O
flow-charting	B-Language
to	O
programming	O
the	O
LGP-30	B-Device
.	O
</s>
<s>
Lessons	O
learned	O
from	O
implementing	O
DOPE	B-Language
were	O
subsequently	O
applied	O
to	O
the	O
invention	O
and	O
development	O
of	O
BASIC	B-Language
.	O
</s>
<s>
Each	O
statement	O
was	O
designed	O
to	O
correspond	O
to	O
a	O
flowchart	B-Language
operation	O
and	O
consisted	O
of	O
a	O
numeric	B-Algorithm
line	B-Application
number	I-Application
,	O
an	O
operation	O
,	O
and	O
the	O
required	O
operands	O
:	O
</s>
<s>
The	O
above	O
program	O
corresponds	O
in	O
functionality	O
to	O
the	O
later	O
BASIC	B-Language
program	O
:	O
</s>
<s>
DOPE	B-Language
might	O
be	O
the	O
first	O
programming	O
language	O
to	O
require	O
every	O
statement	O
to	O
have	O
a	O
line	B-Application
number	I-Application
,	O
predating	O
JOSS	B-Language
and	O
BASIC	B-Language
.	O
</s>
<s>
As	O
with	O
Fortran	B-Application
,	O
different	O
letters	O
represented	O
different	O
variable	O
types	O
.	O
</s>
<s>
Variables	O
starting	O
with	O
letters	O
A	O
to	O
D	O
were	O
floating	B-Algorithm
point	I-Algorithm
,	O
as	O
were	O
variables	O
from	O
I	O
to	O
Z	O
;	O
variables	O
E	O
,	O
F	O
,	O
G	O
,	O
and	O
H	O
each	O
were	O
defined	O
as	O
vectors	O
with	O
components	O
from	O
1	O
to	O
16	O
.	O
</s>
<s>
According	O
to	O
Thomas	O
Kurtz	O
,	O
a	O
co-inventor	O
of	O
BASIC	B-Language
,	O
"	O
Though	O
not	O
a	O
success	O
in	O
itself	O
,	O
DOPE	B-Language
presaged	O
BASIC	B-Language
.	O
</s>
<s>
DOPE	B-Language
provided	O
default	O
vectors	O
,	O
default	O
printing	O
formats	O
,	O
and	O
general	O
input	O
formats	O
.	O
</s>
<s>
Line	B-Application
numbers	I-Application
doubled	O
as	O
jump	O
targets.	O
"	O
</s>
<s>
The	O
language	O
had	O
a	O
number	O
of	O
other	O
features	O
and	O
innovations	O
that	O
were	O
carried	O
over	O
into	O
BASIC	B-Language
:	O
</s>
<s>
Unlike	O
either	O
Fortran	B-Application
or	O
Algol	B-Language
60	I-Language
.	O
</s>
