<s>
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
(	O
YDL	O
)	O
is	O
a	O
discontinued	O
free	B-License
and	I-License
open-source	I-License
operating	B-General_Concept
system	I-General_Concept
for	O
high-performance	O
computing	O
on	O
multi-core	B-Architecture
processor	I-Architecture
computer	B-General_Concept
architectures	I-General_Concept
,	O
focusing	O
on	O
GPU	O
systems	O
and	O
computers	O
using	O
the	O
POWER7	B-Device
processor	O
.	O
</s>
<s>
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
was	O
first	O
released	O
in	O
the	O
spring	O
of	O
1999	O
for	O
Apple	O
Macintosh	O
PowerPC-based	O
computers	O
.	O
</s>
<s>
The	O
most	O
recent	O
version	O
,	O
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
7	O
,	O
was	O
released	O
on	O
August	O
6	O
,	O
2012	O
.	O
</s>
<s>
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
lent	O
its	O
name	O
to	O
the	O
popular	O
YUM	B-Application
Linux	B-Operating_System
software	O
updater	O
,	O
derived	O
from	O
YDL	O
's	O
YUP	O
(	O
Yellowdog	B-Application
UPdater	I-Application
)	O
and	O
thus	O
called	O
Yellowdog	B-Application
Updater	I-Application
,	I-Application
Modified	I-Application
.	O
</s>
<s>
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
is	O
based	O
on	O
Red	O
Hat	O
Enterprise	O
Linux/CentOS	O
and	O
relies	O
on	O
the	O
RPM	B-Application
Package	I-Application
Manager	I-Application
.	O
</s>
<s>
Its	O
software	O
includes	O
applications	O
such	O
as	O
Ekiga	B-Language
(	O
a	O
voice-over-IP	B-Application
and	O
videoconferencing	B-Application
application	O
)	O
,	O
GIMP	B-Application
(	O
a	O
raster	O
graphics	O
editor	O
)	O
,	O
Gnash	B-Language
(	O
a	O
free	O
Adobe	B-Operating_System
Flash	I-Operating_System
player	O
)	O
,	O
gThumb	B-Application
(	O
an	O
image	O
viewer	O
)	O
,	O
the	O
Mozilla	B-Application
Firefox	I-Application
Web	O
browser	O
,	O
the	O
Mozilla	B-Application
Thunderbird	I-Application
e-mail	O
and	O
news	O
client	O
,	O
the	O
OpenOffice.org	B-Application
productivity	O
suite	O
,	O
Pidgin	B-Protocol
(	O
an	O
instant	O
messaging	O
and	O
IRC	B-Protocol
client	O
)	O
,	O
the	O
Rhythmbox	B-Language
music	O
player	O
,	O
and	O
the	O
KDE	B-Application
Noatun	O
and	O
Totem	B-Language
media	I-Language
players	I-Language
.	O
</s>
<s>
Starting	O
with	O
YDL	O
version	O
5.0	O
'	O
Phoenix	B-Application
 '	O
,	O
Enlightenment	B-Application
is	O
the	O
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
default	O
desktop	O
environment	O
,	O
although	O
GNOME	B-Application
and	O
KDE	B-Application
are	O
also	O
included	O
.	O
</s>
<s>
Like	O
other	O
Linux	B-Operating_System
distributions	O
,	O
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
supports	O
software	O
development	O
with	O
GCC	B-Application
(	O
compiled	O
with	O
support	O
for	O
C	B-Language
,	O
C++	B-Language
,	O
Java	B-Language
,	O
and	O
Fortran	B-Application
)	O
,	O
the	O
GNU	B-Language
C	I-Language
Library	I-Language
,	O
GDB	B-Language
,	O
GLib	B-Language
,	O
the	O
GTK+	B-Application
toolkit	O
,	O
Python	B-Language
,	O
the	O
Qt	B-Language
toolkit	I-Language
,	O
Ruby	B-Language
and	O
Tcl	B-Operating_System
.	O
</s>
<s>
Standard	O
text	O
editors	O
such	O
as	O
Vim	B-Application
and	O
Emacs	B-Application
are	O
complemented	O
with	O
IDEs	B-Application
such	O
as	O
Eclipse	B-Application
and	O
KDevelop	B-Language
,	O
as	O
well	O
as	O
by	O
graphical	O
debuggers	O
such	O
as	O
KDbg	O
.	O
</s>
<s>
Standard	O
document	O
preparation	O
tools	O
such	O
as	O
TeX	B-Application
and	O
LaTeX	B-Application
are	O
also	O
included	O
.	O
</s>
<s>
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
includes	O
software	O
for	O
running	O
a	O
Web	O
server	O
(	O
such	O
as	O
Apache/httpd	B-Application
,	O
Perl	B-Language
,	O
and	O
PHP	B-Application
)	O
,	O
database	O
server	O
(	O
such	O
as	O
MySQL	B-Application
and	O
PostgreSQL	B-Application
)	O
,	O
and	O
network	O
server	O
(	O
NFS	B-Protocol
and	O
Webmin	B-Application
)	O
.	O
</s>
<s>
Additional	O
software	O
is	O
also	O
included	O
for	O
running	O
an	O
enterprise	O
server	O
or	O
a	O
compute	O
server	O
or	O
cluster	O
,	O
although	O
two	O
separate	O
products	O
from	O
Terra	O
Soft	O
Solutions	O
,	O
called	O
Yellow	B-General_Concept
Dog	I-General_Concept
Enterprise	I-General_Concept
Linux	I-General_Concept
(	O
for	O
enterprise	O
servers	O
)	O
and	O
Y-HPC	O
(	O
for	O
compute	O
servers/clusters	O
)	O
,	O
were	O
specifically	O
targeted	O
toward	O
those	O
applications	O
.	O
</s>
<s>
Although	O
several	O
other	O
Linux	B-Operating_System
distributions	O
support	O
the	O
Power	O
ISA	O
,	O
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
was	O
distinguished	O
for	O
its	O
focus	O
on	O
supporting	O
the	O
Apple	O
Macintosh	O
platform	O
before	O
the	O
Mac	B-Device
transition	I-Device
to	I-Device
Intel	I-Device
processors	I-Device
.	O
</s>
<s>
Before	O
this	O
transition	O
,	O
Terra	O
Soft	O
Solutions	O
held	O
the	O
unique	O
distinction	O
of	O
being	O
the	O
only	O
company	O
licensed	O
by	O
Apple	O
to	O
resell	O
Apple	O
computers	O
with	O
Linux	B-Operating_System
pre-installed	O
(	O
or	O
for	O
that	O
matter	O
,	O
with	O
any	O
operating	B-General_Concept
system	I-General_Concept
other	O
than	O
Mac	O
OS	O
X	O
)	O
.	O
</s>
<s>
Full	O
support	O
for	O
AirPort	O
(	O
Apple	O
's	O
implementation	O
of	O
the	O
IEEE	O
802.11b-1999	O
wireless	O
networking	O
standard	O
)	O
,	O
and	O
partial	O
support	O
for	O
AirPort	O
Extreme	O
,	O
are	O
also	O
built	O
into	O
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
,	O
as	O
are	O
support	O
for	O
Bluetooth	B-Protocol
and	O
support	O
for	O
accessing	O
the	O
Internet	O
over	O
cellular	O
phones	O
.	O
</s>
<s>
Following	O
the	O
Mac	B-Device
transition	I-Device
to	I-Device
Intel	I-Device
processors	I-Device
,	O
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
retargeted	O
Fedora	O
Core	O
5.0	O
and	O
later	O
to	O
support	O
the	O
Sony	B-Operating_System
PlayStation	I-Operating_System
3	I-Operating_System
and	O
IBM	O
pSeries	B-Device
platforms	O
extensively	O
,	O
while	O
retaining	O
its	O
longstanding	O
support	O
for	O
PowerPC-based	O
Apple	O
hardware	O
.	O
</s>
<s>
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
was	O
sold	O
by	O
Terra	O
Soft	O
Solutions	O
(	O
later	O
Fixstars	O
)	O
,	O
who	O
also	O
marketed	O
PlayStation	B-Operating_System
3	I-Operating_System
consoles	O
,	O
IBM	O
workstations	O
,	O
and	O
servers	O
with	O
Yellow	B-General_Concept
Dog	I-General_Concept
Linux	I-General_Concept
pre-installed	O
.	O
</s>
<s>
As	O
is	O
the	O
case	O
with	O
most	O
other	O
Linux	B-Operating_System
distribution	O
vendors	O
,	O
a	O
portion	O
of	O
the	O
revenue	O
from	O
the	O
sale	O
of	O
those	O
boxed	O
distributions	O
went	O
toward	O
development	O
of	O
the	O
operating	B-General_Concept
system	I-General_Concept
and	O
applications	O
,	O
which	O
are	O
made	O
available	O
as	O
source	O
code	O
under	O
various	O
free	B-License
and	I-License
open-source	I-License
licenses	I-License
.	O
</s>
<s>
Gaurav	O
Khanna	O
,	O
a	O
professor	O
in	O
the	O
Physics	O
Department	O
at	O
the	O
University	O
of	O
Massachusetts	O
,	O
Dartmouth	O
,	O
built	O
a	O
message-passing	O
based	O
cluster	O
using	O
YDL	O
and	O
16	O
PlayStation	B-Operating_System
3s	I-Operating_System
.	O
</s>
<s>
Dubbed	O
the	O
"	O
PS3	B-Operating_System
Gravity	O
Grid	O
"	O
,	O
it	O
performs	O
astrophysical	O
simulations	O
of	O
large	O
supermassive	O
black	O
holes	O
capturing	O
smaller	O
compact	O
objects	O
.	O
</s>
<s>
Khanna	O
claims	O
that	O
the	O
cluster	O
's	O
performance	O
exceeds	O
that	O
of	O
a	O
100+	O
Intel	O
Xeon	O
core	O
based	O
traditional	O
Linux	B-Operating_System
cluster	O
on	O
his	O
simulations	O
.	O
</s>
<s>
The	B-Operating_System
PS3	I-Operating_System
Gravity	O
Grid	O
gathered	O
significant	O
media	O
attention	O
between	O
2007	O
and	O
2010	O
.	O
</s>
<s>
Fixes	O
issue	O
with	O
RPMs	B-Application
in	O
ver	O
.	O
</s>
