The
picture
above
shows
a
computer
____________________
.
In
general
,
a
computer
network
is
two
or
more
digital
____________________
(
desktop
computers
,
____________________
,
mobile
phones
.
?
)
connected
together
(
using
cables
or
____________________
connection
)
so
that
they
can
exchange
data
(
files
and
applications
)
and
resources
(
in
the
picture
the
input
peripheral
we
are
sharing
is
a
____________________
)
.
In
a
computer
network
,
the
computer
that
provides
resources
to
other
computers
is
known
as
a
____________________
,
and
the
individual
computers
,
which
access
shared
network
resources
,
are
known
as
____________________
,
workstations
or
nodes
.
Computer
networks
may
be
classified
on
the
basis
of
geographical
area
in
two
broad
categories
:
LAN
(
____________________
Area
Network
)
and
WAN
(
____________________
Area
Network
)
.
The
connection
between
the
devices
can
be
wired
(
with
____________________
)
or
____________________
(
by
waves
)
.
In
a
wired
connection
,
electrical
cables
(
twisted
cable
with
a
____________________
connector
)
or
fiber
optic
cables
can
be
used
.
Wireless
connections
can
use
radio
waves
(
such
as
____________________
technology
)
,
infrared
signals
,
microwaves
and
Bluetooth
technology
(
very
low
transmission
speed
and
____________________
)
.
In
the
picture
above
,
if
I
want
to
connect
my
desktop
PC
(
workstation
)
to
the
Internet
,
I
need
2
electronic
devices
:
a
____________________
and
a
modem
-
router
.
Apart
from
that
,
to
read
the
news
on
the
web
a
need
a
____________________
(
application
)
.
And
,
of
course
,
an
ISP
(
Internet
Service
____________________
)
such
as
Telefónica
,
Vodafone
or
Orange
.
