This document discusses the history and development of electronics from Thomas Edison's invention of the light bulb to modern integrated circuits and microprocessors. It outlines the benefits of electronics like time conservation and access to information, as well as drawbacks like processing time and bulky early gadgets. The document also examines current and future technologies including VLSI circuits, broadband communication, and advances in computing, and concludes that while electronics provide advantages, precautions must be taken regarding security, privacy, and environmental impact.

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