1. --by Pragmatists

2.  Introduction
 Origin of electronics
 Benefits
 Drawbacks
 Developments in electronics
 Advantages in present electronics
 Disadvantages with present technology
 Upcoming technology
 Pros and cons of electronics
 conclusions

3.  What is electronics?
-Use of electricity for measurement ,
control , communications , computing
and similar applications.
 Use of electronics in daily life
-Alarms , lights , calculators ,
televisions , computers , telephones ,
fridges ,microwave ovens , etc.

4.  Thomas Alva Edison’s invention of bulb.
 Valve technology-
-developed by Sir J A Fleming
-triode valve developed by Lee de
Forest
-further development led to
introduction of radio , television and
early form of computer

5.  Radio waves –
-Waves of electromagnetic energy
that travel at the speed of light.
-Prediction-James Clerk Maxwell.
First demonstration-Heinrich Hertz.
 Radar- Radio Detection and Ranging
-Involves transmission and reflection of
radio waves.
 Transistors
It is an electronic component used to control
electric current and to provide amplification

6.  Integrated Circuits
Small chips of material incorporating the
functions of several separate components of
a conventional electrical circuit
 Microprocessor
Integrated circuit that contains all the
functions of a computer’s central processing
unit .
 Batteries-source of electrical
energy

11.  Time conservation
 Work made easy
 Heavy jobs reduced
 Storage of information
 Access to information when needed
 Telecommunication

12.  Processing time
 Machine based working
 Very less features
 Bulky gadgets
 Require pre-knowledge about gadgets

13.  Development of integrated circuits
 Wide applications of microprocessors
digital watches , hand –held computers and
electronic gaming.
 Development in digitalization of audio
signals- measuring amplitude of signal at
short intervals.
 Medical Electronics-progressed from
computerized axial tomography and the use
of C-scanners

14.  VLSI Circuits (Very Large Scale Integrated)
 Broadband Communication Systems
 Typewriters-replaced by Computers which are
networked-can communicate with one another
 Old fashioned roll of stamps replaced-automatic
electronic mailing machines
 Developments in computer systems-introduction
of tablet-mini size handy computer

15.  Printing made easy  Internet-connects all
 Several copies of over the world
documents  www-Huge resource of
 Photostat machines information
 Mobile devices with
 Hand held tape
technological
recorders
advancements
 Computer writing-  Benefits of tracking
more effective-tools system , digital maps
for spelling and  Technology in
grammar education

16.  Careless usage-
irrepairable problems
 Threat to confidential
information
 Manufacturing
materials-plastics-non
bio-degradable
 Process of
manufacturing-
pollutes environment

17.  Vote by e-mail
 Robotic Dragonfly
 DARPA Pix-net Camera
 Heat Sink

18.  30 futuristic phones
 Controlling TV by hand
 An call from plant
 Flying cars
 Self driving cars

19.  Sharing televised pictures , conversations
, graphics , circuits and interactive software.
 People-auditory impairment-communicate
easily.
 Some jobs-conducted from home.
 Acquiring a job-easy-official proceedings-
forwarded from home.

20.  Storage of communicated messages and
important information.
 Economically viable
 Speed
 Electronic journals-
-easily searchable
-interactive
-accessible
-links

21.  Security issues-hackers.
 Computers-affected by viruses.
 Difficulties-processing bulky data-providing
feedback.
 Duplication of electronic data.
 Problems-’e-mail privacy’.
 Cyber addiction

22.  Electronic gadgets-part of our daily life.
 Overcome many difficulties-make tasks easy.
 Advantages as well as disadvantages
associated with electronics.
 Precautions must be taken while using
technological equipments.
 New technologies-which can
overcome present
disadvantages

23.  Akhila  Aditya
 Divya  Naveen
 Harshika  Rakshith
 Srikanth
 Hema
 Sumanth
 Keerthana