This slide show is compose of ICT and the different eras or periods in ICT

1. Information and Communications Technology
ICT

2. The term information and communications technology (ICT)
collectively refers to the technologies, both hardware and software,
that enables humans to communicate with one another. Basically, it
is any form of thecnology that enables you to communicate.
The beginning of ICT started when humans used objects to
communicate with one another. It is said that ICT began along the
rise of humans. There are four main periods in history that divided
the era of ICT; the premechanical period, mechanical period,
electromechanical period and the electronic period.
EVOLUTION

3. PERIODS
OF ICT

4. • During this time, humans started
communicating with one another using
words and pictograms curved in rocks. Then
they started to write symbols as
substitutes for pictures to depict ideas,
objects and animals.
Pictograms = Alphabet
The information to be stored was becoming
enormous, and writing these pieces of
information in stone tablets was impractical.
When paper was finally produced from
papyrus plant, storing of information was
revolutionized.
Papyrus = Books (bound pieces of
paper) = Library (first data centers
in history)
PREMECHANICAL
PERIOD (3000 BCE - 1450
CE)

5. • In the late stages of these period, humans started using numerical system.
This numerical system spread around the world gradually, enabling a
simpler, faster and more organized way to count. Moreover, humans
started to optimize and invent devices and techniques in counting. The
most popular device created in this period is said to have come from
China- the abacus.
PREMECHANICAL
PERIOD (3000 BCE - 1450 CE)

6. • The highlight of this period is the
advent of the mechanical
calculator called the Pascaline,
which was invented by the
famous mathematician invento
Blaise Pascal along with Wilhelm
Shickard
• Charles Babbage was a
mathematician who imvented the
Analytical Engine, which is
considered the first programmable
mechnical computer, this invention
earned Babbage the title "Father of
the Computers."
MECHANICAL
PERIOD (1450 TO 1840)

7. • The need and the urgency to share
information with one another in a
faster yet reliable manner over long
distances aroused. This period saw the
use of telegraph to transmit
information over long distances. The
telegraph is considered the first electrical
communications device. First invented
in 1837 by William Cooke and Sir
Charles Wheatstone.
• In 1844, an Americal inventor
named Samuel Morse successfully
introduced the first single-circuit
telegraph, which gave rise to the
Morse code.
ELECTROMECHANICAL
PERIOD (1840-1940)

8. • Humans were not satisfied with simply transmitting symbols or letters
over long-distances; they became fascinated with the idea of voice
transmission. In 1876, Alexander Graham Bell was granted the patent
for the telephone. The telephone converts sounds into electricity and
enables the telephone network to transmit it over copper wires.
•
ELECTROMECHANICAL PERIOD
(1840-1940)

9. • The dawn of the Electronics Numerical
Integrator and Computer (ENIAC), the
first electronic and general purpose
computer, marked a revolutionary
period in computing. ENIAC was a
big machine that occupied an area of
167 square meters, aside from it's big
size, it's processing speed was slower
than those of machines today.
• In 1947, the transistor was invented.
It is an electronic device with
properties amd functions similar to
vacuum tubes, but it is lightweight
and faster. It is the foundation of
every electronic device today. The
first full transistor computer was
developed in 1957 and was faster
than vacuum computers.
ELECTRONIC PERIOD
(1940 - PRESENT)

10. • An American electrical engineer
named Jack Kilby was credited for
introducing the integrated circuit in
1959. The IC is a device that is
composed of a group of
transistors and circuit elements
compressed in a single package.
• The advent and development of
integrated circuits usehered in the
period of powerful processors. ICs
are used in processing devices,
amd processors are constructed
in IC forms. Personal computers
then used these prpcessors to
deliber user applications.
ELECTRONIC PERIOD
(1940 - PRESENT)