<s>
Star	B-Operating_System
Trek	I-Operating_System
is	O
the	O
code	O
name	O
that	O
was	O
given	O
to	O
a	O
secret	O
prototype	B-Application
project	O
,	O
running	O
a	O
port	O
of	O
Macintosh	B-Operating_System
System	I-Operating_System
7	I-Operating_System
and	O
its	O
applications	O
on	O
Intel-compatible	B-Operating_System
x86	B-Operating_System
personal	B-Device
computers	I-Device
.	O
</s>
<s>
The	O
project	O
,	O
starting	O
in	O
February	O
1992	O
,	O
was	O
conceived	O
in	O
collaboration	O
between	O
Apple	O
Computer	O
,	O
who	O
provided	O
the	O
majority	O
of	O
engineers	O
,	O
and	O
Novell	O
,	O
who	O
at	O
the	O
time	O
was	O
one	O
of	O
the	O
leaders	O
of	O
cross-platform	B-Operating_System
file-servers	O
.	O
</s>
<s>
The	O
plan	O
was	O
that	O
Novell	O
would	O
market	O
the	O
resulting	O
OS	O
as	O
a	O
challenge	O
to	O
Microsoft	B-Application
Windows	I-Application
,	O
but	O
the	O
project	O
was	O
discontinued	O
in	O
1993	O
and	O
never	O
released	O
,	O
although	O
components	O
were	O
reused	O
in	O
other	O
projects	O
.	O
</s>
<s>
The	O
project	O
was	O
named	O
after	O
the	O
Star	B-Operating_System
Trek	I-Operating_System
science	O
fiction	O
franchise	O
with	O
the	O
slogan	O
"	O
To	B-Operating_System
boldly	I-Operating_System
go	I-Operating_System
where	I-Operating_System
no	I-Operating_System
Mac	I-Operating_System
has	I-Operating_System
gone	I-Operating_System
before	I-Operating_System
"	O
.	O
</s>
<s>
The	O
impetus	O
for	O
the	O
creation	O
of	O
the	O
Star	B-Operating_System
Trek	I-Operating_System
project	I-Operating_System
began	O
out	O
of	O
Novell	O
's	O
desire	O
to	O
increase	O
its	O
competition	O
against	O
the	O
monopoly	O
of	O
Microsoft	O
and	O
its	O
DOS-based	O
Windows	O
products	O
.	O
</s>
<s>
Novell	O
's	O
first	O
idea	O
to	O
extend	O
its	O
desktop	O
presence	O
with	O
a	O
graphical	O
computing	O
environment	O
was	O
to	O
adapt	O
Digital	O
Research	O
's	O
GEM	B-Application
desktop	I-Application
environment	I-Application
,	O
but	O
Novell	O
's	O
legal	O
department	O
rejected	O
this	O
due	O
to	O
apprehension	O
of	O
a	O
possible	O
legal	O
response	O
from	O
Apple	O
,	O
so	O
the	O
company	O
went	O
directly	O
to	O
Apple	O
.	O
</s>
<s>
With	O
shared	O
concerns	O
in	O
the	O
anti-competitive	O
marketplace	O
,	O
Intel	O
's	O
CEO	O
Andy	O
Grove	O
supported	O
the	O
two	O
companies	O
in	O
launching	O
their	O
joint	O
project	B-Operating_System
Star	I-Operating_System
Trek	I-Operating_System
on	O
February	O
14	O
,	O
1992	O
(	O
Valentine	O
's	O
Day	O
)	O
.	O
</s>
<s>
Achieving	O
their	O
deadline	O
goal	O
and	O
receiving	O
their	O
bonuses	O
,	O
the	O
developers	O
eventually	O
reached	O
a	O
point	O
where	O
they	O
could	O
boot	O
an	O
Intel	B-General_Concept
486	I-General_Concept
PC	O
(	O
with	O
very	O
specific	O
hardware	O
)	O
into	O
System	B-Operating_System
7.1	I-Operating_System
,	O
and	O
its	O
on-screen	O
appearance	O
was	O
indistinguishable	O
from	O
a	O
Mac	O
.	O
</s>
<s>
However	O
,	O
every	O
program	O
would	O
then	O
need	O
to	O
be	O
ported	O
to	O
the	O
new	O
x86	B-Operating_System
architecture	I-Operating_System
to	O
run	O
.	O
</s>
<s>
The	O
tagline	O
for	O
the	O
project	O
was	O
"	O
to	B-Operating_System
boldly	I-Operating_System
go	I-Operating_System
where	I-Operating_System
no	I-Operating_System
Mac	I-Operating_System
has	I-Operating_System
gone	I-Operating_System
before	I-Operating_System
"	O
,	O
which	O
Computerworld	O
mocked	O
with	O
the	O
comment	O
"	O
the	O
OS	O
that	O
boldly	O
goes	O
where	O
everyone	O
else	O
has	O
been	O
"	O
.	O
</s>
<s>
Spindler	O
was	O
not	O
interested	O
in	O
the	O
project	O
,	O
instead	O
reallocating	O
most	O
software	O
engineering	O
resources	O
toward	O
the	O
company	O
's	O
total	O
migration	O
to	O
the	O
competing	O
PowerPC	B-Architecture
architecture	O
.	O
</s>
<s>
While	O
Apple	O
came	O
close	O
to	O
releasing	O
Rhapsody	B-Operating_System
in	O
1998	O
on	O
x86	B-Operating_System
systems	O
,	O
even	O
going	O
so	O
far	O
as	O
to	O
ship	O
a	O
developer	O
release	O
for	O
Intel	O
hardware	O
,	O
no	O
Macintosh	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
launched	O
natively	O
on	O
Intel	O
hardware	O
until	O
the	O
official	O
transition	O
of	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
in	O
2006	O
.	O
</s>
<s>
Star	B-Operating_System
Trek	I-Operating_System
was	O
designed	O
as	O
a	O
hybrid	O
of	O
Apple	O
's	O
Macintosh	B-Operating_System
operating	I-Operating_System
system	I-Operating_System
,	O
made	O
to	O
run	O
as	O
an	O
operating	B-Operating_System
system	I-Operating_System
GUI	I-Operating_System
shell	I-Operating_System
application	O
upon	O
Novell	O
's	O
next	O
in-development	O
version	O
of	O
the	O
DR	O
DOS	O
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
It	O
was	O
designed	O
so	O
that	O
a	O
user	O
could	O
think	O
of	O
it	O
as	O
a	O
standalone	O
application	O
platform	O
and	O
general	O
computing	O
environment	O
,	O
in	O
a	O
concept	O
similar	O
to	O
Microsoft	O
's	O
competing	O
Windows	B-Application
3.1x	I-Application
,	O
running	O
on	O
top	O
of	O
DOS	O
.	O
</s>
<s>
This	O
was	O
a	O
radical	O
and	O
tedious	O
departure	O
both	O
technologically	O
and	O
culturally	O
,	O
because	O
at	O
that	O
time	O
,	O
the	O
Macintosh	B-Application
system	I-Application
software	I-Application
had	O
only	O
ever	O
officially	O
run	O
on	O
Apple	O
's	O
own	O
computers	O
,	O
which	O
were	O
all	O
based	O
on	O
the	O
Motorola	B-Device
68000	I-Device
architecture	O
.	O
</s>
<s>
The	O
system	O
was	O
built	O
on	O
the	O
successor	O
of	O
Digital	O
Research	O
's	O
DRDOS	B-Application
6.0	O
(	O
BDOS	B-Operating_System
level	O
6.7	O
and	O
7.1	O
)	O
and	O
NetWare	O
PalmDOS	B-Operating_System
1.0	O
(	O
code	O
named	O
"	O
Merlin	O
"	O
,	O
BDOS	B-Operating_System
level	O
7.0	O
)	O
,	O
Novell	O
's	O
DRDOS	B-Application
"	O
Panther	O
"	O
as	O
a	O
fully	O
PCDOS	O
compatible	O
16-bit	O
disk	O
operating	B-General_Concept
system	I-General_Concept
(	O
with	O
genuinely	O
DOS	O
compatible	O
internal	O
data	O
structures	O
)	O
for	O
bootstrapping	B-Application
,	O
media	O
access	O
,	O
device	B-Application
drivers	I-Application
and	O
file	B-Application
system	I-Application
support	O
.	O
</s>
<s>
The	O
system	O
would	O
utilize	O
DRDOS	B-Application
's	O
new	O
"	O
Vladivar	O
"	O
ExtendedDOS	O
component	O
with	O
flat	O
memory	O
support	O
,	O
which	O
had	O
been	O
under	O
development	O
since	O
1991	O
.	O
</s>
<s>
"	O
Vladivar	O
"	O
(	O
DEVICE	O
=	O
KRNL386.SYS	O
aka	O
DEVICE	O
=	O
EMM386.EXE	O
/MULTI	O
+	O
TASKMGR	O
)	O
was	O
a	O
dynamically	O
loadable	O
32-bit	O
protected	B-Application
mode	I-Application
system	O
core	O
for	O
advanced	O
memory	O
management	O
,	O
hardware	O
virtualization	B-General_Concept
,	O
scheduling	O
and	O
domain	O
management	O
for	O
pre-emptive	B-Operating_System
multithreading	I-Operating_System
within	O
applications	O
as	O
well	O
as	O
multitasking	B-Operating_System
of	O
independent	O
applications	O
running	O
in	O
different	O
virtual	O
DOS	O
machines	O
(	O
comparable	O
to	O
Windows	O
386	O
Enhanced	O
Mode	O
but	O
without	O
a	O
GUI	B-Application
)	O
.	O
</s>
<s>
Thereby	O
,	O
the	O
previously	O
loaded	O
DOS	O
environment	O
including	O
all	O
its	O
device	B-Application
drivers	I-Application
became	O
part	O
of	O
the	O
system	O
domain	O
under	O
the	O
multitasker	O
.	O
</s>
<s>
Unless	O
specific	O
protected	B-Application
mode	I-Application
virtual	O
device	B-Application
drivers	I-Application
were	O
loaded	O
,	O
hardware	O
access	O
got	O
tunneled	O
through	O
this	O
16-bit	O
sub-system	O
by	O
default	O
.	O
</s>
<s>
For	O
maximum	O
speed	O
at	O
minimum	O
resource	O
footprint	O
,	O
the	O
DRDOS	B-Application
BIOS	O
,	O
BDOS	B-Operating_System
kernel	O
,	O
device	B-Application
drivers	I-Application
,	O
memory	O
managers	O
and	O
the	O
multitasker	O
were	O
written	O
in	O
pure	O
x86	B-Operating_System
assembly	B-Language
language	I-Language
.	O
</s>
<s>
Apple	O
's	O
port	O
of	O
System	B-Operating_System
7.1	I-Operating_System
would	O
run	O
on	O
top	O
of	O
this	O
high-performance	O
yet	O
light-weight	O
hybrid	O
32-bit/16	O
-bit	O
protected	B-Application
mode	I-Application
multitasking	B-Operating_System
environment	O
as	O
a	O
graphical	O
system	O
and	O
shell	O
in	O
user	B-Operating_System
space	I-Operating_System
.	O
</s>
<s>
Macintosh	B-Application
resource	B-Operating_System
forks	I-Operating_System
and	O
long	O
filenames	O
were	O
mapped	O
onto	O
the	O
FAT12	B-Application
and	O
FAT16	B-Application
file	B-Application
systems	I-Application
.	O
</s>
<s>
Though	O
the	O
joint	O
effort	O
had	O
been	O
canceled	O
,	O
Novell	O
published	O
the	O
long-awaited	O
DR	B-Application
DOS	I-Application
7.0	I-Application
as	O
Novell	B-Operating_System
DOS	I-Operating_System
7	I-Operating_System
(	O
BDOS7.2	O
)	O
in	O
1994	O
.	O
</s>
<s>
Besides	O
many	O
other	O
additions	O
in	O
the	O
areas	O
of	O
advanced	O
memory	O
and	O
disk	O
management	O
and	O
networking	O
,	O
NovellDOS7	O
provided	O
all	O
of	O
Novell	O
's	O
underlying	O
"	O
STDOS	O
"	O
components	O
of	O
the	O
DRDOS	B-Application
Panther	O
and	O
Vladivar	O
projects	O
except	O
for	O
the	O
graphical	O
Star	B-Operating_System
Trek	I-Operating_System
component	O
itself	O
,	O
which	O
had	O
been	O
jointly	O
developed	O
by	O
Apple	O
and	O
Novell	O
.	O
</s>
<s>
Instead	O
,	O
TASKMGR	O
provides	O
a	O
text	O
mode	O
interface	O
to	O
the	O
underlying	O
multitasker	O
in	O
EMM386	O
,	O
but	O
the	O
system	O
also	O
provides	O
an	O
API	B-General_Concept
to	O
allow	O
third-party	O
GUIs	B-Application
to	O
take	O
control	O
.	O
</s>
<s>
Microsoft	B-Application
Windows	I-Application
,	O
ViewMAX	O
2	O
and	O
3	O
,	O
and	O
PC/GEOS	B-Application
/	O
NewDeal	O
are	O
known	O
to	O
utilize	O
this	O
interface	O
,	O
when	O
run	O
on	O
NovellDOS7	O
(	O
or	O
its	O
successors	O
OpenDOS	B-Application
7.01	O
or	O
DR-DOS	B-Application
7.02	O
and	O
higher	O
)	O
,	O
and	O
StarTrek	O
would	O
have	O
been	O
yet	O
another	O
one	O
.	O
</s>
<s>
In	O
fact	O
,	O
some	O
additional	O
hooks	O
had	O
been	O
implemented	O
specifically	O
for	O
the	O
StarTrek	O
GUI	B-Application
for	O
frame	O
buffer	O
access	O
.	O
</s>
<s>
Apple	O
reused	O
some	O
of	O
the	O
platform	O
abstraction	O
technology	O
developed	O
for	O
Star	B-Operating_System
Trek	I-Operating_System
,	O
incorporating	O
it	O
into	O
the	O
concurrently	O
developed	O
migration	O
to	O
the	O
PowerPC	B-Architecture
architecture	O
.	O
</s>
<s>
This	O
abstraction	O
technology	O
includes	O
the	O
capability	O
of	O
loading	O
the	O
Macintosh	B-Application
ROM	O
data	O
from	O
a	O
file	O
instead	O
of	O
from	O
a	O
ROM	O
chip	O
.	O
</s>
<s>
Loading	O
the	O
Mac	B-Application
OS	I-Application
ROM	O
file	O
was	O
first	O
used	O
in	O
the	O
original	O
iMac	O
as	O
a	O
CHRP	O
New	B-Device
World	I-Device
ROM	I-Device
system	O
.	O
</s>
<s>
Former	O
Star	B-Operating_System
Trek	I-Operating_System
team	O
members	O
Fred	O
Monroe	O
and	O
Fred	O
Huxham	O
formed	O
the	O
company	O
Fredlabs	O
,	O
Inc	O
.	O
</s>
<s>
In	O
January	O
1997	O
,	O
the	O
company	O
released	O
VirtualMac	O
,	O
a	O
Mac	B-Application
OS	I-Application
application	O
compatibility	O
virtual	O
machine	O
for	O
BeOS	B-Application
.	O
</s>
<s>
Apple	O
's	O
first	O
and	O
quickly	O
aborted	O
concept	O
of	O
porting	O
its	O
flagship	O
operating	B-General_Concept
system	I-General_Concept
to	O
Intel	O
systems	O
was	O
in	O
1985	O
,	O
following	O
the	O
exit	O
of	O
Steve	O
Jobs	O
.	O
</s>
<s>
Apple	O
did	O
not	O
reattempt	O
this	O
effort	O
until	O
Star	B-Operating_System
Trek	I-Operating_System
,	O
and	O
did	O
not	O
launch	O
such	O
a	O
product	O
until	O
2006	O
.	O
</s>
<s>
Apple	O
has	O
actually	O
shipped	O
products	O
based	O
upon	O
the	O
concept	O
of	O
hybridizing	O
System	B-Operating_System
7	I-Operating_System
into	O
a	O
shell	B-Operating_System
application	I-Operating_System
platform	O
.	O
</s>
<s>
It	O
was	O
accomplished	O
in	O
the	O
form	O
of	O
the	O
startmac	O
process	O
and	O
other	O
hybridized	O
applications	O
launched	O
atop	O
its	O
UNIX-based	O
A/UX	B-Operating_System
system	O
.	O
</s>
<s>
It	O
was	O
also	O
accomplished	O
in	O
the	O
form	O
of	O
the	O
Macintosh	B-Application
Application	I-Application
Environment	I-Application
(	O
MAE	O
)	O
,	O
which	O
was	O
the	O
functional	O
equivalent	O
of	O
Star	B-Operating_System
Trek	I-Operating_System
plus	O
an	O
embedded	O
68k	O
emulator	B-Application
(	O
as	O
was	O
the	O
case	O
with	O
System	B-Operating_System
7	I-Operating_System
for	O
Power	O
Macintosh	B-Application
)	O
,	O
running	O
as	O
an	O
application	O
for	O
Solaris	O
and	O
HP/UX	O
.	O
</s>
<s>
System	B-Operating_System
7	I-Operating_System
and	O
later	O
have	O
always	O
had	O
DOS	O
filesystem	B-Application
compatibility	O
.	O
</s>
<s>
Although	O
a	O
direct	O
x86	B-Operating_System
port	O
of	O
the	O
classic	B-Application
MacOS	I-Application
was	O
never	O
released	O
to	O
the	O
public	O
,	O
determined	O
users	O
could	O
make	O
Apple	O
's	O
retail	O
OS	O
run	O
upon	O
non-Mac	O
computers	O
through	O
emulation	B-Application
.	O
</s>
<s>
The	O
development	O
of	O
these	O
emulation	B-Application
environments	O
was	O
said	O
to	O
have	O
been	O
inspired	O
by	O
the	O
initiative	O
shown	O
in	O
the	O
StarTrek	O
project	O
.	O
</s>
<s>
Two	O
of	O
the	O
more	O
popular	O
68k	O
Macintosh	B-Application
emulators	B-Application
are	O
vMac	B-Application
and	O
Basilisk	B-Application
II	I-Application
,	O
and	O
a	O
PowerPC	B-Architecture
Macintosh	B-Application
emulator	B-Application
is	O
SheepShaver	B-Application
;	O
each	O
are	O
written	O
by	O
third	O
parties	O
.	O
</s>
<s>
Ten	O
years	O
after	O
Project	O
StarTrek	O
,	O
it	O
became	O
possible	O
to	O
natively	O
run	O
Darwin	B-Operating_System
,	O
the	O
Unix-based	O
core	O
of	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
on	O
the	O
x86	B-Operating_System
platform	O
by	O
virtue	O
of	O
its	O
NeXTstep	B-Application
foundation	O
.	O
</s>
<s>
This	O
port	O
was	O
widely	O
available	O
because	O
Darwin	B-Operating_System
was	O
open	O
source	O
under	O
the	O
Apple	B-License
Public	I-License
Source	I-License
License	I-License
.	O
</s>
<s>
However	O
,	O
the	O
MacOSX	B-Operating_System
graphical	B-Application
user	I-Application
interface	I-Application
,	O
named	O
Aqua	B-Application
,	O
was	O
proprietary	O
.	O
</s>
<s>
It	O
was	O
not	O
included	O
with	O
Darwin	B-Operating_System
,	O
which	O
depended	O
on	O
other	O
window	B-Application
managers	I-Application
running	O
on	O
X11	B-Operating_System
for	O
graphical	B-Application
interfaces	I-Application
,	O
and	O
thus	O
most	O
commercial	O
Mac	B-Application
OS	I-Application
applications	O
cannot	O
run	O
natively	O
on	O
Darwin	B-Operating_System
alone	O
.	O
</s>
<s>
Apple	O
ran	O
a	O
similar	O
project	O
to	O
StarTrek	O
for	O
MacOSX	B-Operating_System
,	O
called	O
Marklar	O
,	O
later	O
referred	O
to	O
by	O
Steve	O
Jobs	O
as	O
having	O
been	O
the	O
"	O
secret	O
double	O
life	O
"	O
of	O
the	O
publicly	O
Power	O
PC-only	O
Mac	B-Application
OS	I-Application
.	O
</s>
<s>
This	O
project	O
was	O
to	O
retain	O
OPENSTEP	B-Operating_System
's	O
x86	B-Operating_System
port	O
,	O
keeping	O
MacOSX	B-Operating_System
and	O
all	O
supporting	O
applications	O
(	O
including	O
iLife	B-Application
and	O
Xcode	B-Operating_System
)	O
running	O
on	O
the	O
x86	B-Operating_System
architecture	I-Operating_System
as	O
well	O
as	O
that	O
of	O
the	O
PowerPC	B-Architecture
.	O
</s>
<s>
Marklar	O
was	O
publicly	O
revealed	O
by	O
Apple	O
's	O
CEO	O
Steve	O
Jobs	O
in	O
June	O
2005	O
when	O
he	O
announced	O
the	O
Macintosh	B-Application
transition	B-Device
to	I-Device
Intel	I-Device
processors	I-Device
starting	O
in	O
2006	O
.	O
</s>
<s>
However	O
,	O
its	O
strategy	O
was	O
based	O
upon	O
its	O
OS/2	B-Application
operating	B-General_Concept
system	I-General_Concept
,	O
which	O
had	O
long	O
since	O
achieved	O
seamless	O
backward	O
compatibility	O
with	O
DOS	O
applications	O
.	O
</s>
<s>
In	O
1992	O
,	O
roughly	O
coinciding	O
with	O
the	O
timeframe	O
of	O
the	O
Star	B-Operating_System
Trek	I-Operating_System
project	I-Operating_System
,	O
IBM	O
devised	O
a	O
new	O
and	O
fundamentally	O
integral	O
subsystem	O
for	O
backward	O
compatibility	O
with	O
Windows	B-Application
3.0	I-Application
and	O
Windows	B-Application
3.1	I-Application
applications	O
.	O
</s>
<s>
This	O
new	O
subsystem	O
for	O
OS/2	B-Application
,	O
called	O
Win-OS/2	B-Application
,	O
was	O
integrated	O
beginning	O
with	O
OS/2	B-Application
2.0	O
.	O
</s>
<s>
Although	O
conceived	O
through	O
different	O
legacy	O
business	O
requirements	O
and	O
cultures	O
,	O
Win-OS/2	B-Application
was	O
designed	O
with	O
similar	O
software	O
engineering	O
objectives	O
and	O
virtualization	B-General_Concept
techniques	O
as	O
was	O
Star	B-Operating_System
Trek	I-Operating_System
.	O
</s>
<s>
Coincidentally	O
,	O
IBM	O
had	O
also	O
code-named	O
its	O
OS/2	B-Application
releases	O
with	O
Star	B-Operating_System
Trek	I-Operating_System
themes	O
,	O
and	O
would	O
eventually	O
make	O
such	O
references	O
integral	O
to	O
OS/2	B-Application
'	O
s	O
public	O
brand	O
beginning	O
with	O
OS/2	B-Application
Warp	O
.	O
</s>
<s>
Apple	O
and	O
IBM	O
have	O
attempted	O
several	O
proprietary	O
cross-platform	B-Operating_System
collaborations	O
,	O
including	O
the	O
unreleased	O
port	O
of	O
QuickTime	B-Application
to	O
OS/2	B-Application
,	O
the	O
significant	O
traction	O
of	O
the	O
OpenDoc	B-Application
software	B-Architecture
framework	I-Architecture
,	O
the	O
AIM	O
alliance	O
,	O
Kaleida	O
Labs	O
,	O
and	O
Taligent	B-Operating_System
.	O
</s>
<s>
Both	O
companies	O
have	O
utilized	O
actual	O
personnel	O
from	O
the	O
Star	B-Operating_System
Trek	I-Operating_System
television	O
and	O
movie	O
franchise	O
for	O
promotional	O
purposes	O
.	O
</s>
<s>
A	O
corporation	O
formerly	O
known	O
as	O
ARDI	O
developed	O
a	O
product	O
called	O
Executor	B-Operating_System
,	O
which	O
can	O
run	O
a	O
compatible	O
selection	O
of	O
68k	O
Macintosh	B-Application
applications	O
,	O
and	O
is	O
hosted	O
upon	O
either	O
the	O
DOS	O
or	O
Linux	O
operating	B-General_Concept
systems	I-General_Concept
on	O
an	O
386-compatible	O
CPU	O
.	O
</s>
<s>
Executor	B-Operating_System
is	O
a	O
cleanroom	B-Application
reimplementation	O
of	O
the	O
Macintosh	B-Device
Toolbox	I-Device
and	O
versions	O
6	O
and	O
7	O
of	O
the	O
operating	B-General_Concept
system	I-General_Concept
,	O
and	O
an	O
integrated	O
68k	O
CPU	O
emulator	B-Application
called	O
Syn68k	O
.	O
</s>
<s>
Liken	O
from	O
Andataco	O
,	O
for	O
Sun	O
and	O
HP	O
workstations	O
,	O
emulates	B-Application
the	O
Macintosh	B-Application
hardware	O
environment	O
including	O
the	O
68k	O
CPU	O
,	O
upon	O
which	O
the	O
user	O
must	O
install	O
System	O
6.0.7	O
.	O
</s>
<s>
Quorum	O
Software	O
Systems	O
made	O
two	O
apps	O
targeting	O
UNIX	B-Application
workstations	O
:	O
Equal	O
provides	O
binary	O
compatibility	O
by	O
emulating	B-Application
the	O
Mac	O
APIs	B-General_Concept
and	O
68k	O
CPU	O
,	O
to	O
put	O
each	O
precertified	O
Mac	O
app	O
into	O
its	O
own	O
X	B-Operating_System
window	I-Operating_System
,	O
on	O
Sun	O
and	O
SGI	O
workstations	O
;	O
Latitude	O
provides	O
a	O
source	O
code	O
porting	O
layer	O
with	O
a	O
Display	O
Postscript	O
driver	O
.	O
</s>
