1
.
Machine
-
to
-
Machine
(
M2M
)
communication
started
with
the
____________________
systems
of
the
early
20th
century
that
transmitted
____________________
readings
from
____________________
instrumentation
over
phone
lines
,
radio
____________________
or
satellite
communications
.
2
.
____________________
has
since
been
used
,
for
example
,
for
____________________
weather
and
tracking
wildlife
.
3
.
The
connection
to
the
Internet
can
be
made
directly
through
the
____________________
or
modem
via
WiFi
or
____________________
methods
like
Ethernet
,
cable
or
power
line
networking
.
4
.
The
connected
gadgets
of
the
IoT
contain
computing
hardware
,
____________________
that
gather
various
sorts
of
____________________
and
communication
hardware
that
can
send
and
____________________
signals
.
5
.
Smart
devices
can
work
in
____________________
with
____________________
technology
including
RFID
tags
,
QR
____________________
,
and
barcodes
.
6
.
The
devices
also
need
a
power
____________________
,
which
can
include
a
connection
to
a
power
____________________
,
a
solar
panel
,
or
even
____________________
or
rechargeable
batteries
,
provided
the
____________________
hardware
is
of
the
low
-
power
variety
.
7
.
The
sending
and
processing
of
the
____________________
data
is
often
nearly
____________________
allowing
the
devices
to
____________________
in
real
-
time
.
