<s>
A	O
game	B-Protocol
client	I-Protocol
is	O
a	O
network	O
client	B-Protocol
that	O
connects	O
an	O
individual	O
user	O
to	O
the	O
main	O
game	B-Application
server	I-Application
,	O
used	O
mainly	O
in	O
multiplayer	O
video	O
games	O
.	O
</s>
<s>
It	O
collects	O
data	O
such	O
as	O
score	O
,	O
player	O
status	O
,	O
position	O
and	O
movement	O
from	O
a	O
single	O
player	O
and	O
send	O
it	O
to	O
the	O
game	B-Application
server	I-Application
,	O
which	O
allows	O
the	O
server	B-Application
to	O
collect	O
each	O
individual	O
's	O
data	O
and	O
show	O
every	O
player	O
in	O
game	O
,	O
whether	O
it	O
is	O
an	O
arena	O
game	O
on	O
a	O
smaller	O
scale	O
or	O
a	O
massive	O
game	O
with	O
thousands	O
of	O
players	O
on	O
the	O
same	O
map	O
.	O
</s>
<s>
Even	O
though	O
the	O
game	B-Application
server	I-Application
displays	O
each	O
player	O
's	O
information	O
for	O
every	O
player	O
in	O
a	O
game	O
,	O
players	O
still	O
have	O
their	O
own	O
unique	O
perspective	O
from	O
the	O
information	O
collected	O
by	O
the	O
game	B-Protocol
client	I-Protocol
,	O
so	O
that	O
every	O
player	O
's	O
perspective	O
of	O
the	O
game	O
is	O
different	O
,	O
even	O
though	O
the	O
world	O
for	O
every	O
player	O
is	O
the	O
same	O
.	O
</s>
<s>
The	O
game	B-Protocol
client	I-Protocol
also	O
allows	O
the	O
information	O
sharing	O
among	O
users	O
.	O
</s>
<s>
An	O
example	O
would	O
be	O
item	O
exchange	O
in	O
many	O
MMORPG	B-Protocol
games	O
where	O
a	O
player	O
exchange	O
an	O
item	O
he/she	O
does	O
n't	O
want	O
for	O
an	O
item	O
he/she	O
wants	O
,	O
the	O
game	B-Protocol
clients	I-Protocol
interconnect	O
with	O
each	O
other	O
and	O
allows	O
the	O
sharing	O
of	O
information	O
,	O
in	O
this	O
exchanging	O
items	O
.	O
</s>
<s>
Since	O
many	O
games	O
requires	O
a	O
centralized	O
space	O
for	O
players	O
to	O
gather	O
and	O
a	O
way	O
for	O
users	O
to	O
exchange	O
their	O
information	O
,	O
many	O
game	B-Protocol
clients	I-Protocol
are	O
a	O
hybrid	O
of	O
client-server	B-Operating_System
and	O
peer-to-peer	O
application	O
structures	O
.	O
</s>
<s>
The	O
World	O
Wide	O
Web	O
was	O
born	O
on	O
a	O
NeXTCube	B-Device
with	O
a	O
256Mhz	O
cpu	O
,	O
2GB	O
of	O
disk	O
,	O
and	O
a	O
gray	O
scale	O
monitor	O
running	O
NeXTSTEP	O
OS	O
.	O
</s>
<s>
At	O
that	O
time	O
Dial-up	B-Application
bulletin	I-Application
boards	I-Application
provided	O
players	O
with	O
a	O
way	O
of	O
playing	O
games	O
over	O
the	O
internet	O
.	O
</s>
<s>
The	O
client-server	B-Operating_System
system	I-Operating_System
provided	O
online	O
gaming	O
a	O
way	O
to	O
function	O
on	O
a	O
large	O
scale	O
.	O
</s>
<s>
A	O
game	B-Protocol
client	I-Protocol
receives	O
input	O
from	O
an	O
individual	O
user	O
.	O
</s>
<s>
Each	O
of	O
them	O
will	O
require	O
the	O
player	O
to	O
control	O
the	O
input	B-Device
devices	I-Device
.	O
</s>
<s>
After	O
receiving	O
those	O
inputs	O
,	O
the	O
game	B-Protocol
client	I-Protocol
will	O
send	O
it	O
back	O
to	O
the	O
server	B-Application
.	O
</s>
<s>
The	O
game	B-Protocol
client	I-Protocol
decodes	O
and	O
displays	O
information	O
that	O
makes	O
up	O
the	O
game	O
world	O
,	O
including	O
objects	O
stored	O
in	O
the	O
computer	O
and	O
action	O
results	O
made	O
by	O
players	O
,	O
and	O
then	O
translate	O
these	O
information	O
onto	O
the	O
user	O
interface	O
and	O
the	O
output	O
devices	O
.	O
</s>
<s>
The	O
server	B-Application
process	O
the	O
information	O
and	O
send	O
it	O
back	O
to	O
the	O
client	B-Protocol
.	O
</s>
<s>
The	O
client	B-Protocol
will	O
display	O
the	O
processed	O
information	O
to	O
the	O
player	O
according	O
to	O
the	O
player	O
's	O
point	O
of	O
view	O
,	O
so	O
that	O
each	O
player	O
will	O
have	O
a	O
different	O
perspective	O
of	O
the	O
screen	O
due	O
to	O
their	O
private	O
clients	O
.	O
</s>
<s>
The	O
client	B-Protocol
will	O
also	O
detect	O
any	O
changes	O
made	O
according	O
to	O
the	O
players	O
during	O
the	O
gaming	O
session	O
,	O
including	O
layouts	O
and	O
settings	O
.	O
</s>
<s>
Since	O
a	O
game	O
is	O
real-time	O
and	O
players	O
are	O
constantly	O
sending	O
actions	O
,	O
the	O
client	B-Protocol
is	O
constantly	O
processing	O
information	O
and	O
adjusting	O
the	O
system	O
accordingly	O
.	O
</s>
<s>
Here	O
is	O
an	O
example	O
of	O
how	O
the	O
game	B-Protocol
client	I-Protocol
works	O
,	O
using	O
the	O
game	O
League	B-Application
of	I-Application
Legends	I-Application
.	O
</s>
<s>
Multiple	O
things	O
are	O
happening	O
from	O
the	O
client	B-Protocol
's	O
perspective	O
.	O
</s>
<s>
The	O
client	B-Protocol
pulls	O
data	O
stored	O
in	O
the	O
computer	O
archives	O
.	O
</s>
<s>
The	O
client	B-Protocol
send	O
data	O
of	O
7Turtle7	O
's	O
and	O
Red	O
Brambleback	O
's	O
data	O
on	O
statistics	O
like	O
position	O
,	O
health	O
,	O
mana	O
,	O
damage	O
,	O
defense	O
and	O
many	O
other	O
data	O
to	O
the	O
server	B-Application
and	O
allows	O
the	O
server	B-Application
to	O
calculate	O
the	O
new	O
world	O
state	O
after	O
7Turtle7	O
strikes	O
Red	O
Brambleback	O
.	O
</s>
<s>
The	O
server	B-Application
process	O
the	O
data	O
and	O
send	O
it	O
back	O
to	O
all	O
other	O
player	O
's	O
clients	O
,	O
informing	O
what	O
7Turtle7	O
just	O
did	O
and	O
how	O
the	O
client	B-Protocol
should	O
give	O
feedback	O
on	O
it	O
.	O
</s>
<s>
After	O
7Turtle7	O
's	O
client	B-Protocol
receives	O
this	O
information	O
,	O
it	O
creates	O
the	O
output	O
and	O
sends	O
it	O
back	O
to	O
7Turtle7	O
.	O
</s>
<s>
The	O
other	O
game	B-Protocol
clients	I-Protocol
are	O
also	O
aware	O
of	O
the	O
attack	O
made	O
by	O
7Turtle7	O
,	O
but	O
depending	O
on	O
their	O
perspective	O
,	O
their	O
clients	O
determine	O
whether	O
this	O
information	O
is	O
displayed	O
to	O
them	O
or	O
not	O
.	O
</s>
<s>
A	O
player	O
's	O
client	B-Protocol
on	O
the	O
opposing	O
team	O
,	O
for	O
example	O
,	O
is	O
aware	O
of	O
the	O
attack	O
,	O
but	O
it	O
would	O
not	O
display	O
the	O
changes	O
to	O
that	O
player	O
since	O
the	O
game	O
sets	O
it	O
so	O
that	O
one	O
has	O
to	O
discover	O
7Turtle7	O
doing	O
such	O
a	O
move	O
,	O
only	O
then	O
it	O
will	O
be	O
displayed	O
on	O
their	O
outputs	O
.	O
</s>
<s>
Even	O
though	O
the	O
client	B-Protocol
sends	O
and	O
receives	O
data	O
from	O
an	O
individual	O
's	O
perspective	O
,	O
there	O
is	O
data	O
that	O
is	O
shared	O
with	O
everyone	O
in	O
a	O
game	O
or	O
does	O
n't	O
share	O
at	O
all	O
.	O
</s>
<s>
There	O
is	O
also	O
the	O
FPS	O
and	O
Ping	B-Protocol
indicator	O
,	O
which	O
is	O
exclusive	O
to	O
7Turtle7	O
and	O
not	O
shared	O
through	O
the	O
client	B-Protocol
.	O
</s>
<s>
A	O
game	B-Protocol
client	I-Protocol
provides	O
the	O
ability	O
to	O
do	O
so	O
.	O
</s>
<s>
A	O
large	O
number	O
of	O
users	O
on	O
their	O
client	B-Protocol
connected	O
to	O
the	O
server	B-Application
could	O
cause	O
high	O
resource	O
usage	O
,	O
but	O
at	O
the	O
same	O
time	O
the	O
users	O
need	O
to	O
stay	O
connected	O
to	O
the	O
game	O
.	O
</s>
<s>
Game	B-Protocol
clients	I-Protocol
will	O
provide	O
this	O
type	O
information	O
to	O
a	O
centralized	O
server	B-Application
.	O
</s>
<s>
Sometimes	O
the	O
game	O
development	O
team	O
creates	O
new	O
contents	O
or	O
fix	O
previous	O
bugs	O
,	O
which	O
means	O
they	O
need	O
to	O
let	O
every	O
player	O
's	O
clients	O
to	O
synchronize	O
with	O
the	O
server	B-Application
.	O
</s>
<s>
The	O
digital	O
distribution	O
platform	O
will	O
alert	O
the	O
user	O
that	O
there	O
is	O
an	O
update	O
is	O
available	O
,	O
and	O
client	B-Protocol
apply	O
those	O
update	O
patches	O
for	O
the	O
users	O
automatically	O
to	O
ensure	O
every	O
user	O
has	O
the	O
same	O
perspective	O
of	O
the	O
game	O
content	O
when	O
changes	O
have	O
been	O
made	O
.	O
</s>
<s>
Some	O
examples	O
of	O
a	O
digital	O
distribution	O
platforms	O
include	O
steam	B-Application
,	O
origin	B-Operating_System
and	O
battle.net,	O
which	O
provide	O
the	O
same	O
services	O
when	O
it	O
comes	O
to	O
game	B-Protocol
clients	I-Protocol
.	O
</s>
