<s>
Galileo	B-Operating_System
is	O
a	O
computer	B-Application
reservations	I-Application
system	I-Application
(	O
CRS	O
)	O
owned	O
by	O
Travelport	O
.	O
</s>
<s>
In	O
addition	O
to	O
airline	O
reservations	O
,	O
the	O
Galileo	B-Application
CRS	I-Application
is	O
also	O
used	O
to	O
book	O
train	O
travel	O
,	O
cruises	O
,	O
car	O
rental	O
,	O
and	O
hotel	O
rooms	O
.	O
</s>
<s>
The	O
Galileo	B-Operating_System
system	O
was	O
moved	O
from	O
Denver	O
,	O
Colorado	O
,	O
to	O
the	O
Worldspan	O
datacenter	O
in	O
Atlanta	O
,	O
Georgia	O
,	O
on	O
September	O
28	O
,	O
2008	O
,	O
following	O
the	O
2007	O
merger	O
of	O
Travelport	O
and	O
Worldspan	O
(	O
although	O
they	O
now	O
share	O
the	O
same	O
datacenter	O
,	O
they	O
continue	O
to	O
be	O
run	O
as	O
separate	O
systems	O
)	O
.	O
</s>
<s>
Galileo	B-Operating_System
is	O
subject	O
to	O
the	O
Capps	O
II	O
and	O
its	O
successor	O
Secure	O
Flight	O
program	O
for	O
the	O
selection	O
of	O
passengers	O
with	O
a	O
risk	O
profile	O
.	O
</s>
<s>
Galileo	B-Operating_System
is	O
a	O
member	O
of	O
the	O
International	O
Air	O
Transport	O
Association	O
,	O
of	O
the	O
OpenTravel	O
Alliance	O
and	O
of	O
SITA	O
.	O
</s>
<s>
Galileo	B-Operating_System
traces	O
its	O
roots	O
back	O
to	O
1971	O
when	O
United	O
Airlines	O
created	O
its	O
first	O
computerized	O
central	O
reservation	B-Application
system	I-Application
under	O
the	O
name	O
Apollo	O
.	O
</s>
<s>
Flights	O
by	O
the	O
airline	O
owning	O
the	O
reservation	B-Application
system	I-Application
had	O
preferential	O
display	O
on	O
the	O
computer	O
screen	O
.	O
</s>
<s>
Due	O
to	O
the	O
high	O
market	O
penetration	O
of	O
the	O
Sabre	B-Application
and	O
Apollo	O
systems	O
,	O
owned	O
by	O
American	O
Airlines	O
and	O
United	O
Airlines	O
,	O
respectively	O
,	O
Worldspan	O
and	O
Galileo	B-Operating_System
were	O
created	O
by	O
other	O
airline	O
groups	O
in	O
an	O
attempt	O
to	O
gain	O
market	O
share	O
in	O
the	O
computer	B-Application
reservation	I-Application
system	I-Application
market	O
and	O
,	O
by	O
inference	O
,	O
the	O
commercial	O
airline	O
market	O
.	O
</s>
<s>
Galileo	B-Operating_System
was	O
formed	O
in	O
1987	O
by	O
nine	O
European	O
carriers	O
--	O
British	O
Airways	O
,	O
KLM	O
Royal	O
Dutch	O
Airlines	O
,	O
Alitalia	O
,	O
Swissair	O
,	O
Austrian	O
Airlines	O
,	O
Olympic	O
,	O
Sabena	O
,	O
Air	O
Portugal	O
and	O
Aer	O
Lingus	O
.	O
</s>
<s>
In	O
response	O
and	O
to	O
prevent	O
possible	O
government	O
intervention	O
,	O
United	O
Airlines	O
spun	O
off	O
its	O
Apollo	O
reservation	B-Application
system	I-Application
,	O
which	O
was	O
then	O
controlled	O
by	O
Covia	O
.	O
</s>
<s>
Galileo	B-Application
International	I-Application
was	O
born	O
when	O
Covia	O
acquired	O
Europe	O
's	O
Galileo	B-Operating_System
and	O
merged	O
it	O
with	O
the	O
Apollo	O
system	O
in	O
1992	O
.	O
</s>
<s>
The	O
Apollo	O
reservation	B-Application
system	I-Application
was	O
used	O
by	O
United	O
Airlines	O
until	O
3	O
March	O
2012	O
,	O
when	O
it	O
switched	O
to	O
SHARES	O
,	O
a	O
system	O
used	O
by	O
its	O
former	O
Continental	O
Airlines	O
subsidiary	O
.	O
</s>
<s>
Apollo	O
is	O
still	O
used	O
by	O
Galileo	B-Application
International	I-Application
(	O
now	O
part	O
of	O
Travelport	O
GDS	O
)	O
travel	O
agency	O
customers	O
in	O
the	O
United	O
States	O
,	O
Canada	O
,	O
Mexico	O
,	O
and	O
Japan	O
.	O
</s>
<s>
Galileo	B-Operating_System
UK	O
was	O
originally	O
created	O
from	O
Travicom	O
which	O
was	O
the	O
world	O
's	O
first	O
multi-access	O
reservations	O
system	O
using	O
the	O
technology	O
developed	O
by	O
Videcom	O
.	O
</s>
<s>
Travicom	O
was	O
a	O
company	O
launched	O
by	O
Videcom	O
,	O
British	O
Airways	O
,	O
British	O
Caledonian	O
and	O
CCL	O
in	O
1976	O
which	O
in	O
1988	O
became	O
Galileo	B-Operating_System
UK	O
.	O
</s>
<s>
Southwest	O
Airlines	O
has	O
entered	O
into	O
a	O
marketing	O
agreement	O
with	O
Apollo/Galileo	O
and	O
travel	O
agents	O
are	O
now	O
able	O
to	O
book	O
reservations	O
on	O
Southwest	O
.	O
</s>
