Title: 
Headings:  COMMUNICATION REVOLUTION OF THE 19TH CENTURY
COMMUNICATION
 
REVOLUTION
 
OF
 
THE
 
19TH
 
CENTURY

U.S.
 
Postal
 
Service
 
Created

Telegraph
 
Revolutionizes
 
Communication

Innovations
 
in
 
Photography

Telephone
 
Takes
 
Communication
 
Global

Further
 
Reading

MLA
 
Citation


Content: It
 
was
lightweight,
 
easy
 
to
 
operate,
 
and
 
used
 
lm
 
cartridges
 
that
 
were
 
sent
 
to
 
Kodak
 
for
 
developing
 
and
 
printing
 
after
the
 
pictures
 
were
 
taken. And
 
most
 
importantly,
 
it
 
was
 
inexpensive. The
 
Kodak
 
camera
 
was
 
an
 
instant
 
success
 
with
people
 
everywhere. The
 
last
 
major
 
communication
 
device
 
to
 
be
 
invented
 
and
 
commercialized
 
during
 
the
 
19th
 
century
 
was
 
the
telephone,
 
which
 
extended
 
voice
 
communication
 
across
 
the
 
continent
 
and
 
the
 
world. In
 
theory,
 
the
 
telephone
simply
 
replaced
 
the
 
telegraph
 
key
 
with
 
a
 
microphone
 
and
 
a
 
receiver,
 
but
 
a
 
lot
 
of
 
new
 
technology
 
was
 
actually
required
 
to
 
make
 
it
 
practical. Unlike
 
the
 
telegraph,
 
telephones
 
needed
 
to
 
be
 
conversational,
 
personal,
 
and
 
private,
which
 
required
 
dedicated
 
lines
 
that
 
appeared
 
to
 
be
 
for
 
individual
 
use
 
when
 
they
 
were
 
actually
 
carrying
 
many
simultaneous
 
calls. They
 
also
 
needed
 
miniaturized
 
microphones
 
and
 
speakers
 
and
 
a
 
system
 
to
 
locate,
 
notify,
 
and
connect
 
the
 
parties
 
to
 
a
 
phone
 
call,
 
which
 
led
 
to
 
the
 
invention
 
of
 
the
 
telephone
 
exchange. Telephone
 
Takes
 
Communication
 
Global
Alexander
 
Graham
 
Bell
 
rst
 
demonstrated
 
a
 
workable
 
telephone
 
in
 
1876. However,
 
several
 
years
 
were
 
required
to
 
establish
 
a
 
complete
 
telephone
 
system,
 
particularly
 
the
 
telephone
 
exchange. Early
 
versions
 
of
 
the
 
telephone
exchange
 
were
 
switchboards
 
containing
 
a
 
port
 
(a
 
place
 
to
 
plug
 
in
 
a
 
jack)
 
for
 
each
 
phone
 
supported
 
by
 
the
exchange.