<s>
ePSXe	B-Application
(	O
enhanced	B-Application
PSX	I-Application
emulator	I-Application
)	O
is	O
a	O
PlayStation	B-Device
video	O
game	O
console	O
emulator	O
for	O
x86-based	O
PC	B-Device
hardware	I-Device
with	O
Microsoft	B-Application
Windows	I-Application
and	O
Linux	B-Application
,	O
as	O
well	O
as	O
devices	O
running	O
Android	B-Application
.	O
</s>
<s>
ePSXe	B-Application
is	O
closed	B-Application
source	I-Application
with	O
the	O
exception	O
of	O
the	O
application	B-Application
programming	I-Application
interface	I-Application
(	O
API	B-Application
)	O
for	O
its	O
plug-ins	O
.	O
</s>
<s>
For	O
half	O
a	O
year	O
,	O
ePSXe	B-Application
was	O
developed	O
in	O
private	O
,	O
with	O
part	O
of	O
this	O
initial	O
development	O
being	O
carried	O
out	O
by	O
_Demo_	O
,	O
previously	O
known	O
for	O
his	O
work	O
on	O
the	O
Super	B-Application
Nintendo	I-Application
emulator	O
ZSNES	B-Language
.	O
</s>
<s>
When	O
released	O
on	O
October	O
14	O
,	O
2000	O
,	O
ePSXe	B-Application
was	O
a	O
revolution	O
in	O
the	O
Playstation	B-Device
emulation	O
scene	O
,	O
boasting	O
higher	O
compatibility	O
and	O
performance	O
than	O
other	O
emulators	O
of	O
the	O
system	O
at	O
the	O
time	O
.	O
</s>
<s>
After	O
ePSXe	B-Application
1.6.0	O
was	O
released	O
on	O
August	O
5	O
,	O
2003	O
,	O
its	O
development	O
seemed	O
to	O
halt	O
,	O
with	O
speculation	O
that	O
the	O
source	O
code	O
had	O
been	O
lost	O
due	O
to	O
a	O
hard	B-Device
disk	I-Device
failure	I-Device
.	O
</s>
<s>
However	O
,	O
on	O
April	O
5	O
,	O
2008	O
,	O
the	O
developers	O
of	O
ePSXe	B-Application
made	O
a	O
public	O
statement	O
revealing	O
that	O
in	O
the	O
summer	O
of	O
2007	O
,	O
they	O
had	O
decided	O
to	O
continue	O
development	O
of	O
the	O
emulator	O
,	O
due	O
to	O
encouragement	O
from	O
users	O
.	O
</s>
<s>
On	O
May	O
24	O
,	O
2008	O
,	O
ePSXe	B-Application
version	O
1.7.0	O
was	O
released	O
.	O
</s>
<s>
After	O
another	O
hiatus	O
,	O
the	O
developers	O
came	O
back	O
on	O
August	O
30	O
,	O
2012	O
,	O
announcing	O
the	O
release	O
of	O
ePSXe	B-Application
for	O
Android	B-Application
,	O
as	O
well	O
as	O
stating	O
that	O
ePSXe	B-Application
for	O
Windows	O
was	O
in	O
testing	O
of	O
version	O
1.8.0	O
.	O
</s>
<s>
ePSXe	B-Application
was	O
one	O
of	O
the	O
early	O
emulators	O
to	O
make	O
use	O
of	O
plug-ins	O
to	O
emulate	O
GPU	B-Architecture
,	O
SPU	O
(	O
sound	O
)	O
,	O
and	O
CD-ROM	B-Device
drive	O
functions	O
,	O
a	O
model	O
first	O
established	O
in	O
PSEmu	O
Pro	O
.	O
</s>
<s>
Games	O
can	O
be	O
loaded	O
from	O
the	O
computer	O
's	O
CD	O
drive	O
or	O
from	O
one	O
of	O
many	O
types	O
of	O
CD	B-Application
images	I-Application
directly	O
from	O
the	O
user	O
's	O
hard	B-Device
drive	I-Device
.	O
</s>
<s>
Games	O
that	O
do	O
not	O
necessarily	O
run	O
properly	O
,	O
or	O
even	O
start	O
at	O
all	O
,	O
can	O
be	O
fixed	O
and	O
played	O
via	O
the	O
use	O
of	O
ePSXe	B-Application
patch	O
files	O
in	O
.ppf	O
format	O
.	O
</s>
<s>
Until	O
version	O
1.9.25	O
,	O
ePSXe	B-Application
could	O
only	O
function	O
with	O
an	O
image	O
of	O
an	O
official	O
Sony	B-Device
PlayStation	I-Device
BIOS	B-Operating_System
.	O
</s>
<s>
Since	O
the	O
various	O
PlayStation	B-Device
BIOS	B-Operating_System
images	O
are	O
copyrighted	O
by	O
Sony	O
,	O
it	O
is	O
illegal	O
to	O
distribute	O
them	O
.	O
</s>
<s>
For	O
this	O
reason	O
,	O
ePSXe	B-Application
does	O
not	O
come	O
bundled	O
with	O
any	O
of	O
the	O
PlayStation	B-Device
BIOS	B-Operating_System
images	O
,	O
requiring	O
the	O
user	O
to	O
provide	O
one	O
for	O
the	O
emulator	O
.	O
</s>
<s>
Version	O
1.9.25	O
added	O
HLE	B-Device
BIOS	B-Operating_System
support	O
,	O
allowing	O
it	O
to	O
mimic	O
the	O
effect	O
of	O
the	O
PlayStation	B-Device
's	O
BIOS	B-Operating_System
,	O
although	O
compatibility	O
is	O
currently	O
lower	O
than	O
an	O
official	O
BIOS	B-Operating_System
.	O
</s>
<s>
GPU	B-Architecture
:	O
Most	O
GPU	B-Architecture
plug-ins	O
run	O
with	O
either	O
Direct3D	B-Application
,	O
OpenGL	B-Application
,	O
or	O
the	O
Glide	B-Operating_System
API	I-Operating_System
,	O
and	O
are	O
available	O
as	O
freeware	B-License
or	O
open-source	B-Application
.	O
</s>
<s>
Many	O
GPU	B-Architecture
plugins	O
require	O
game-specific	O
hacks	O
to	O
run	O
games	O
.	O
</s>
<s>
ePSXe	B-Application
is	O
able	O
to	O
run	O
most	O
PlayStation	B-Device
games	O
somewhat	O
accurately	O
.	O
</s>
<s>
Retro	O
Gamer	O
called	O
ePSXe	B-Application
"	O
the	O
best	O
free	O
PlayStation	B-Device
emulator	O
"	O
.	O
</s>
<s>
Techtree	O
stated	O
"	O
ePSXe	B-Application
is	O
the	O
best	O
free	O
PlayStation	B-Device
emulator	O
"	O
.	O
</s>
<s>
says	O
"	O
the	O
easiest	O
PS1	O
emulator	O
for	O
android	B-Application
with	O
downloadable	O
cheat	O
codes	O
and	O
great	O
game	O
compatibilty	O
with	O
PS1	O
roms	O
"	O
.	O
</s>
