<s>
MIT/GNU	B-Application
Scheme	I-Application
is	O
a	O
programming	O
language	O
,	O
a	O
dialect	O
and	O
implementation	O
of	O
the	O
language	O
Scheme	B-Language
,	O
which	O
is	O
a	O
dialect	O
of	O
Lisp	B-Language
.	O
</s>
<s>
It	O
can	O
produce	O
native	O
binary	O
files	O
for	O
the	O
x86	B-Operating_System
(	O
IA-32	B-Device
,	O
x86-64	B-Device
)	O
processor	O
architecture	O
.	O
</s>
<s>
It	O
is	O
free	B-License
and	I-License
open-source	I-License
software	I-License
released	O
under	O
v2	O
or	O
later	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GPL	B-License
)	O
.	O
</s>
<s>
It	O
was	O
first	O
released	O
by	O
Guy	O
Lewis	O
Steele	O
Jr.	O
and	O
Gerald	O
Jay	O
Sussman	O
at	O
the	O
Massachusetts	O
Institute	O
of	O
Technology	O
in	O
1986	O
,	O
as	O
free	B-Application
software	I-Application
even	O
before	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
,	O
GNU	B-Operating_System
,	O
and	O
the	O
GPL	B-License
existed	O
.	O
</s>
<s>
It	O
is	O
now	O
part	O
of	O
the	B-Application
GNU	I-Application
Project	I-Application
.	O
</s>
<s>
It	O
features	O
a	O
rich	O
runtime	B-Library
software	B-Library
library	I-Library
,	O
a	O
powerful	O
source	O
code	O
level	O
debugger	B-Application
,	O
a	O
native	O
code	B-Language
compiler	I-Language
and	O
a	O
built-in	O
Emacs-like	O
editor	O
named	O
Edwin	B-Application
.	O
</s>
<s>
The	O
books	O
Structure	B-Language
and	I-Language
Interpretation	I-Language
of	I-Language
Computer	I-Language
Programs	I-Language
and	O
Structure	O
and	O
Interpretation	O
of	O
Classical	O
Mechanics	O
include	O
software	O
that	O
can	O
be	O
run	O
on	O
MIT/GNU	B-Application
Scheme	I-Application
.	O
</s>
<s>
Edwin	B-Application
is	O
a	O
built-in	O
Emacs-like	O
editor	O
that	O
comes	O
with	O
MIT/GNU	B-Application
Scheme	I-Application
.	O
</s>
<s>
Edwin	B-Application
normally	O
displays	O
the	O
*	O
scheme*	O
data	B-General_Concept
buffer	I-General_Concept
,	O
the	O
mode	O
line	O
,	O
and	O
the	O
mini-buffer	O
when	O
it	O
starts	O
.	O
</s>
<s>
As	O
in	O
Emacs	B-Application
,	O
the	O
mode	O
line	O
gives	O
information	O
like	O
the	O
name	O
of	O
the	O
buffer	B-General_Concept
above	O
it	O
and	O
whether	O
that	O
buffer	B-General_Concept
is	O
read-only	O
,	O
modified	O
,	O
or	O
unmodified	O
.	O
</s>
<s>
Quote	O
from	O
developer	O
on	O
Savannah	O
(	O
Gnu	B-Operating_System
's	O
forum	O
site	O
)	O
:	O
"	O
Originally	O
,	O
there	O
was	O
just	O
one	O
Latin	O
message	O
:	O
moriturus	O
te	O
saluto	O
:	O
"	O
I	O
who	O
am	O
about	O
to	O
die	O
salute	O
you.	O
"	O
</s>
<s>
The	O
idea	O
is	O
that	O
the	O
Scheme	B-Language
process	O
,	O
singular	O
,	O
salutes	O
the	O
user	O
before	O
dying	O
.	O
</s>
