Minstrels & Harp
Oral history handed down
from one generation of
story-tellers to another.
Oldest know form of human
Pre-historic paintings on
cave walls and ceilings
Interpreted as being hunting
magic, meant to increase the
number of animals
Cave drawing at Lascaux in France, 15,000
BC. It shows the scenario of people’s life in
Creation of pictures on
rocks by picking, incising
The oldest petroglyph is
between 10,000 to
12,000 years old
Interpreted as early
forms of pre-writing
The Standard of Ur, dates from around 2600 - 2400 BC, representations of a
The earliest dated printing
book is the “Diamond Sutra”
It was printed in China in 868
Printed using wood blocks
made from Mulberry Wood
First movable type printing press invented in 1450
By a German craftsman named Johannes
It was developed from the technology of screw-type
Gutenberg was the first to use
press to print the Bible
He brought down the price of
By the end of the 15th century it
had spread to over 236 cities
First Bible printed by Johannes
Gutenberg printing press remained the standard
until the 20th century
Two ideas altered the design of the printing press
First, the use of steam power for running the machinery
Second, the replacement of the printing flatbed with the
rotary motion of cylinders
A non verbal way of sending and receiving messages
An improvement of the telegraph
Communication was not simultaneous
Inventors thought why not make a new telegraph
Alexander Bell knew how
sound was transmitted
Possibility of multiple
messages sent at the
Bell had another great idea
Create a device that could transmit speech
March 10, 1876 that device was created
Now known as the telephone
Tele means at a distance
Phone means sound
Hence, the name Telephone
First message send over the telephone
“Mr. Watson, come here. I want to see you.”
The Telephone one of the greatest inventions
DID YOU KNOW?
Alexander Bell was not the only inventor of the
Elisha Gray invented the telephone the same time
Alexander was the first to patent his invention
Developed from two inventions
the telegraph and the telephone
An apparatus for receiving or transmitting radio
There are varying disputed claims about who
At the beginning was called "wireless telegraphy".
A type of electromagnetic radiation
Wavelengths in the electromagnetic spectrum
longer than infrared light.
They travel at the speed of light.
The capacity to transmit music, speech, pictures
and other data invisibly through the air.
In 1887, Heinrich Hertz
First predicted by mathematical
work done in 1865 by James Clerk
First Wireless Transmission
1901, Italian inventor Guglielmo
oThe first voice transmission
ooccurred on December 24th, 1906
oThe transmission included reading
from the Bible, playing the violin, and a
phonograph recording of "Largo."
RADIO AS COMMUNICATION
a reliable and versatile way to communicate with
the rest of the world.
Broadcast consists of local / world news, music,
verbal shows, and etc.
Radio is free for everyone
As long as there is a signal
A form of advanced electrical/electronic signals
The history of television records the work of
numerous engineers and inventors in several
countries over many decades.
The fundamental principles of television were
initially explored using electromechanical methods
to scan, transmit and reproduce an image.
Paul Nipkow developed a
rotating-disc technology in
Transmits pictures over
wire called the Nipkow
light intensities of small
portions of an image are
successively analyzed and
Charles Jenkins invented
a mechanical television
system called radiovision
Claimed to have
transmitted the earliest
moving silhouette images
on June 14, 1923.
CATHODE RAY TUBE
Electronic television is
based on the development
of the cathode ray tube
which is the picture tube
found in modern TV sets.
German scientist, Karl Braun invented
the cathode ray tube oscilloscope (CRT)
TELEVISION AS COMMUNICATION
Reaches a large audience
Diversified to fit many different audiences
Carries many channels and networks which can
allow the viewer a choice
Efficient and can quickly spread information
a very effective tool in spreading information and
entertainment to a large and diversified audience.
INVENTIONS OF KONRAD ZUSE
FIRST INVENTION OF Z SERIES: Z1
In1936, Zuse made a mechanical calculator called the Z1
The first binary computer.
used it to explore several ground-breaking technologies in
floating-point arithmetic, high-capacity memory and
modules or relays operating on the yes/no principle.
2ND INVENTION OF Z SERIES: Z2
In 1939, Konrad Zuse completed the Z2, the first
fully functioning electro-mechanical computer.
3RD INVENTION OF Z SERIES: Z3
His 3rd invention Z3
constructed with recycled materials
It was the world's first electronic
fully programmable digital computer
based on a binary floating-point number and
Old movie films were used to store data and
THE LAST INVENTION OF THE Z SERIES
Z4 was completed and in 1955.
It had a mechanical memory with a capacity of
The Z4 had punches and various facilities to enable
including address translation and conditional branching.
FIRST ‘MODERN’ ELECTRIC COMPUTER
The Atanasoff-Berry Computer (ABC) first to
use modern digital switching techniques
Vacuum tubes as switches
Introduced the concepts of binary arithmetic and