<s>
Executor	B-Operating_System
is	O
a	O
software	O
application	O
that	O
allows	O
Motorola	O
68000-based	O
classic	B-Application
Mac	I-Application
OS	I-Application
programs	O
to	O
be	O
run	O
on	O
various	O
x86-based	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
Executor	B-Operating_System
was	O
created	O
by	O
ARDI	O
(	O
Abacus	O
Research	O
and	O
Development	O
,	O
Inc	O
.	O
)	O
.	O
</s>
<s>
As	O
of	O
2005	O
,	O
Executor	B-Operating_System
development	O
has	O
been	O
indefinitely	O
postponed	O
;	O
as	O
of	O
2008	O
,	O
it	O
was	O
made	O
available	O
as	O
open	B-Application
source	I-Application
software	I-Application
.	O
</s>
<s>
Unlike	O
other	O
true	O
Macintosh	O
emulators	B-Application
,	O
Executor	B-Operating_System
requires	O
no	O
startup	O
ROM	B-Device
images	O
or	O
other	O
Apple	O
intellectual	O
property	O
.	O
</s>
<s>
Executor	B-Operating_System
,	O
much	O
like	O
Wine	B-Application
for	O
running	O
Windows	B-Application
applications	I-Application
on	O
Unix-like	O
platforms	O
,	O
translates	O
Macintosh	B-Device
Toolbox	I-Device
API	O
calls	O
and	O
QuickDraw	B-Operating_System
routines	O
into	O
equivalent	O
Win32	O
or	O
POSIX	O
API	O
calls	O
.	O
</s>
<s>
The	O
MS-DOS	B-Application
version	O
of	O
Executor	B-Operating_System
runs	O
using	O
the	O
CWSDPMI	B-Application
protected	B-Application
mode	I-Application
DOS	B-Device
extender	I-Device
.	O
</s>
<s>
Executor	B-Operating_System
translates	O
68k	O
big-endian	O
binary	O
code	O
into	O
x86	B-Operating_System
little-endian	O
binary	O
code	O
.	O
</s>
<s>
Executor	B-Operating_System
can	O
only	O
run	O
Macintosh	O
programs	O
designed	O
to	O
run	O
on	O
68000-based	O
Macintosh	O
hardware	O
.	O
</s>
<s>
Executor	B-Operating_System
can	O
mimic	O
either	O
Macintosh	O
System	B-Operating_System
7.0.0	I-Operating_System
,	O
or	O
System	B-Protocol
6.0.7	I-Protocol
for	O
older	O
applications	O
that	O
are	O
incompatible	O
with	O
System	B-Operating_System
7.0.0	I-Operating_System
.	O
</s>
<s>
Due	O
to	O
the	O
GUI-oriented	O
nature	O
of	O
classic	B-Application
Mac	I-Application
OS	I-Application
applications	O
,	O
Executor	B-Operating_System
has	O
its	O
own	O
GUI	B-Application
environment	O
known	O
as	O
Browser	O
.	O
</s>
<s>
Browser	O
attempts	O
to	O
somewhat	O
mimic	O
the	O
classic	B-Application
Mac	I-Application
OS	I-Application
desktop	O
and	O
the	O
Finder	B-Application
application	O
without	O
having	O
features	O
such	O
as	O
the	O
trash	O
can	O
or	O
Mac	B-Application
OS	I-Application
control	O
panels	O
.	O
</s>
<s>
Executor	B-Operating_System
does	O
not	O
have	O
support	O
for	O
networking	B-Architecture
of	O
any	O
type	O
,	O
including	O
AppleTalk	B-Application
support	O
.	O
</s>
<s>
Executor	B-Operating_System
also	O
lacks	O
the	O
ability	O
to	O
run	O
components	O
(	O
such	O
as	O
extensions	O
or	O
control	O
panels	O
)	O
that	O
are	O
highly	O
integrated	O
with	O
classic	B-Application
Mac	I-Application
OS	I-Application
versions	O
.	O
</s>
<s>
Due	O
to	O
the	O
differences	O
between	O
the	O
actual	O
MacOS	B-Application
ROM	B-Device
and	O
the	O
emulation	B-Application
provided	O
by	O
Executor	B-Operating_System
,	O
other	O
compatibility	O
issues	O
exist	O
.	O
</s>
<s>
For	O
example	O
,	O
heise	O
Magazine	O
reports	O
issues	O
with	O
installation	O
of	O
many	O
programs	O
,	O
and	O
running	O
early	O
versions	O
of	O
StarWriter	B-Application
and	O
Adobe	B-Language
PageMill	I-Language
.	O
</s>
<s>
However	O
,	O
once	O
installed	O
,	O
Microsoft	B-Application
Word	I-Application
,	O
Excel	B-Application
and	O
BBEdit	B-Operating_System
Lite	I-Operating_System
are	O
usable	O
.	O
</s>
<s>
Executor	B-Operating_System
can	O
run	O
on	O
x86-based	O
PCs	O
running	O
Microsoft	B-Application
Windows	I-Application
and	O
various	O
specific	O
Linux	B-Application
distributions	O
.	O
</s>
<s>
All	O
versions	O
of	O
Executor	B-Operating_System
require	O
a	O
minimum	O
configuration	O
of	O
a	O
90MHz	O
Pentium	O
processor	O
,	O
32	O
MB	O
of	O
RAM	O
with	O
4	O
MB	O
available	O
to	O
Executor	B-Operating_System
,	O
and	O
a	O
minimum	O
of	O
8	O
MB	O
of	O
hard	O
drive	O
space	O
for	O
installation	O
.	O
</s>
<s>
However	O
,	O
the	O
Unofficial	O
Macintosh	O
Emulation	B-Application
Pages	O
reports	O
successfully	O
running	O
Executor	B-Operating_System
with	O
24MB	O
of	O
RAM	O
on	O
Windows	O
95	O
.	O
</s>
<s>
The	O
Linux	B-Application
version	O
of	O
Executor	B-Operating_System
has	O
been	O
tested	O
under	O
Red	O
Hat	O
Linux	B-Application
5	O
through	O
7	O
,	O
SuSE	O
6	O
,	O
Caldera	B-Operating_System
OpenLinux	I-Operating_System
2	O
,	O
Debian	O
2.1	O
,	O
and	O
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
.	O
</s>
<s>
Older	O
versions	O
of	O
Executor	B-Operating_System
also	O
run	O
on	O
MS-DOS	B-Application
and	O
NeXTSTEP	B-Application
.	O
</s>
<s>
Executor	B-Operating_System
was	O
originally	O
developed	O
to	O
run	O
Mac	O
programs	O
on	O
the	O
NextStep	B-Application
platform	O
and	O
other	O
MC680x0-based	O
Unix	O
systems	O
like	O
SunStation	O
.	O
</s>
<s>
Currently	O
,	O
Executor	B-Operating_System
is	O
n't	O
being	O
supported	O
or	O
developed	O
.	O
</s>
<s>
On	O
July	O
23	O
,	O
2007	O
,	O
a	O
new	O
working	O
serial	O
code	O
with	O
no	O
expiration	O
date	O
was	O
released	O
,	O
while	O
the	O
status	O
of	O
Executor	B-Operating_System
remains	O
unchanged	O
.	O
</s>
<s>
After	O
considering	O
an	O
open	B-Application
source	I-Application
release	O
of	O
the	O
source	O
code	O
for	O
some	O
time	O
,	O
Matthews	O
released	O
the	O
source	O
code	O
for	O
the	O
executor	B-Operating_System
and	O
syn68k	O
applications	O
on	O
October	O
5	O
,	O
2008	O
,	O
under	O
a	O
very	O
permissive	O
MIT-style	O
license	O
.	O
</s>
