<s>
MSWLogo	B-Application
is	O
a	O
programming	O
language	O
which	O
is	O
interpreted	B-Application
,	O
based	O
on	O
the	O
computer	O
language	O
Logo	B-Device
,	O
with	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
front	O
end	O
.	O
</s>
<s>
Its	O
core	O
is	O
the	O
same	O
as	O
UCBLogo	B-Application
by	O
Brian	O
Harvey	O
.	O
</s>
<s>
It	O
is	O
free	O
and	O
open-source	O
software	O
,	O
with	O
source	O
code	O
available	O
,	O
in	O
Borland	B-Application
C++	I-Application
.	O
</s>
<s>
MSWLogo	B-Application
supports	O
multiple	O
turtle	B-Application
graphics	I-Application
,	O
3D	O
computer	O
graphics	O
,	O
and	O
allows	O
input	O
from	O
ports	O
COM	B-Architecture
and	O
LPT	B-Device
.	O
</s>
<s>
It	O
also	O
supports	O
a	O
windows	O
interface	O
,	O
so	O
input/output	B-General_Concept
(	O
I/O	B-General_Concept
)	O
is	O
available	O
through	O
this	O
GUI	B-Application
,	O
and	O
keyboard	O
and	O
mouse	O
events	O
can	O
trigger	O
interrupts	O
.	O
</s>
<s>
Simple	O
GIF	O
animations	O
may	O
also	O
be	O
produced	O
on	O
MSWLogo	B-Application
version	O
6.5	O
with	O
the	O
command	O
gifsave	O
.	O
</s>
<s>
The	O
program	O
is	O
also	O
used	O
as	O
educational	B-Application
software	I-Application
.	O
</s>
<s>
Jim	O
Muller	O
wrote	O
The	O
Great	O
Logo	B-Device
Adventure	O
,	O
a	O
complete	O
Logo	B-Device
manual	O
using	O
MSWLogo	B-Application
as	O
the	O
demonstration	O
language	O
.	O
</s>
<s>
MSWLogo	B-Application
has	O
evolved	O
into	O
FMSLogo	B-Application
:	O
An	O
Educational	O
Programming	O
Environment	O
,	O
a	O
free	O
,	O
open	O
source	O
implementation	O
of	O
the	O
language	O
Logo	B-Device
for	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
It	O
is	O
released	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GPL	B-License
)	O
and	O
is	O
mainly	O
developed	O
and	O
maintained	O
by	O
David	O
Costanzo	O
.	O
</s>
<s>
MSWLogo	B-Application
,	O
as	O
of	O
version	O
6.5b	O
,	O
supports	O
many	O
functions	O
,	O
including	O
:	O
</s>
<s>
Multimedia	O
devices	O
:	O
WAV	O
sound	O
files	O
,	O
CD-ROM	B-Device
control	O
,	O
etc	O
.	O
</s>
