1. Prepared by
E. Nivetha
IV Year ECE

2.  Green Computing
 History of Green Computing
 Why go Green?
 Manufacturing of PC
 Green Manufacturing
 Reduction in power consumption
 Recent implementation in Green Computing
 Disposal of Components
 Advantages & Disadvantages

3.  Use of computer systems is increasing day by day. Such an
excessive use of computer generates environmental issues.
 First issue is electricity shortage because computer require
tremendous electricity that also increases the cost.
 Second issue is the carbon footprint that the computer leaves
which create environmental problems.
 Third issue is regarding not utilizing the potential inherent
computing power which is concerned with hardware and
software
 Fourth and last but not least issue is about how we are using
computers. That means wasting of computing power by
ignoring some of the common actions.
 GREEN COMPUTING helps to overcome these problems

4.  Green computing is the term used to denote efficient use of
resources in Computing.
 It is also known as Green IT.
 Green Computing is “Where organizations adopt a policy of
ensuring that the setup and operation of Information
Technology produces the minimal carbon Footprint.

5.  The term “Green Computing” was probably coined shortly after
the ‘Energy Star’ program began way back in 1992.
 ENERGY STAR program stands alone as the
most successful voluntary energy conservation
movement in history.
 To save energy and protect the climate, the simple choice
is ENERGY STAR.
 One of the first result of green computing was the “Sleep mode”
function of computer monitors.

7. CLIMATE CHANGE:
 First and foremost, conclusive research shows that CO2 and
other emission are causing global climate and environmental
damage.
SAVINGS:
 Green Computing can lead to serious cost saving overtime.
 Reductions in energy costs from servers, cooling and lighting
are generating serious savings for many corporation.
RELIABILITY OF POWER:
 As energy demands in the world go up, energy supply is
declining or flat.
 Energy efficient systems help ensure healthy power systems.

8. LEAD:
 Used in soldering of printed circuit boards lead can cause
damage to the central and peripheral nervous system, blood
system and kidneys.
MERCURY:
 Used in batteries, switches.
 Mercury spreads out in water transforming into methylated
mercury that can cause chronic brain damage.
CADMIUM:
 Used in resistors for chips and in semiconductors.
 Cadmium is classified as toxic, these compounds accumulate
in human body particularly the kidneys.

9. BAMBOO:
 Is becoming increasingly popular for making casing for
computers and peripherals.
RECYCLABLE PLASTICS:
 Computers are constructed from recyclable polycarbonate
resin.
ECO-FRIENDLY FLAME RETARDANT:
 There are flame retardant silicone compounds available that
are flame retardant and completely non-toxic.
INVENTORY MANAGEMENT:
 Reducing the quantity of both hazardous materials used in the
process and the amount of excess raw materials.

12.  Turn off the computer when not in use, even if just for an hour.
 Use power saver mode.
 Use hardware/software with Energy Star Label.
 Don’t print unless necessary and you are ready.
 Use LCDs instead of CRTs as they are more power efficient.
 Purchase Electronic Product Environmental Assessment Tool
registered products.(EPEAT).
 EPEAT products must be energy efficient to reduce emission
of climate changing greenhouse gases.

13.  Europe has outlawed using landfills for computer components.
 Disposal of these devices constituted 20-50 million tons per
year(5% of the total waste of the planet)
 Toxic chemicals in electronics products can reach into the land
over time or are released into the atmosphere, impacting
nearby communities and the environment.
 This releases heavy metals such as lead, mercury and
cadmium into the
air and ashes.

15. Reuse:
 Donate your computer components to people who may not
have or have lesser quality computers.
Refurbish:
 Rather than discarding your computer upgrade it.
 Change its some of the parts in order to make it new.
Recycle:
 One of the major challenges is recycling the printed circuit
boards from the electronic wastes.
 The circuit boards contain such precious metals as gold, silver,
platinum, etc. and such base metals as copper, iron aluminium,
etc.

16. Blackle:
 Blackle is a search-engine site powered by Google
Custom Search.
 Blackle came into being based on the concept that
when a computer screen is white, presenting an
empty word page or the Google home page, your
computer consumes 74W.
 When the screen is black it consumes only 59W.

18.  The Zonbu is a new, very energy efficient PC.
 The Zonbu consumes just one third of the power of a
typical light bulb.
 The device runs the Linux operating system using a
1.2GHz processor and 512 MB of RAM.

20.  Fit-Pc is the size of a paperback and absolutely silent,
yet fit enough to run Windows XP or Linux.
 Fit-PC is designed to fit where a standard PC is too
bulky, noisy and power hungry.
 Fit-PC draws only 5 watts, consuming in a day less
than a traditional PC consume in 1hour.

22.  Energy saving
 Environmentally Friendly
 Cost-effective
 Save more money per year

23.  High start up cost
 Not readily available
 Still in experimental stages
 Sacrifices performance for battery life
 Not for everyone

24.  So far, consumers haven’t cared about ecological
impact when buying computers, they cared only
about speed and price.
 The greenest computer will not miraculously fall
from the sky one day; it will be the product of years
of improvements.