This document discusses green computing, which aims to reduce the environmental impact of computers and data centers. It outlines the goals of green computing such as using less hazardous materials and maximizing energy efficiency. Some techniques discussed include using more efficient CPUs and powering down systems in idle states. The document also highlights efforts by companies like HP, Dell, Apple, and Lenovo to make their hardware more sustainable through methods like increasing recycled content and offering take-back programs. Overall, the document advocates for green computing practices to reduce energy usage, carbon emissions, and electronic waste.

1. Presented by :
DIVYA VERMA
B.Tech (C.S.)

2.  Introduction
 Origin
 Goals of Green Computing
 Features
 Growth and Impact of IT environment
 Problems
 Solution
 Global impact
 Energy efficient computing practices
 Advantages & Disadvantages
 Future
 Conclusion
 References

3. • WHAT IS GREEN COMPUTING?
Green computing is the study and practice of
environmentally sustainable computing..i.e..
using computer resources efficiently.
• It includes the implementation of energy
efficient CPUs ,servers and other peripherals
as well as reduced resource consumption and
proper disposal of e-waste.

4. • It can include :
designing
manufacturing
using and disposing
computers , servers and other associated
subsystems efficiently and effectively with
minimal or no impact on environment.

5. • The term “GREEN COMPUTING ” came
into existence after the “ENERGY STAR
PROGRAMME” was launched by the US
Environmental Protection Agency in 1992.
• It was a labeling programme that was
designed to promote and recognize energy
efficiency in monitors, climate control
equipments and other technologies.

7. • Green computing focuses on the triple
bottom line of economic viability, social
responsibility and environmental impact.
• The three main goals are:
1. Reduce the use of hazardous materials.
2. Maximize the energy efficiency.
3. Promote the recyclability, biodegradability
of defunct products and factory waste.

8. ALGORITHMIC TECHNIQUES
DYNAMIC
SPEED
SCALING
POWER
DOWN
STRATEGIES
Minimizing power
consumption by providing
desired quality of service..
Put system into sleep
mode in idle state.

9. • Less use of hazardous materials.
• Energy efficient.
• Recyclable materials used for manufacturing.
• End of life recovery
• Use of renewable and bio-based materials.

10. • Longer product retrieval.
• End of life take-back facility.
• Manufacturer’s certificate.
• Packaging material.
• EPEAT ratings.

11. • An average desktop computer and monitor
consumes 60 to 300 watts of electricity which is
why energy consumption and cost reduction
programs represent a major area of focus and
opportunity with green IT.
• A business with a network of 20,000 desktop
systems running 24X7 drawing 200 watts
consumes about 300 million kWh of electricity
annually.

12. • Manufacturing computers include the use of lead,
cadmium, mercury and other toxics in general.
• According to green experts, computers can
contain 4 to 8 pounds of lead alone.
• Computers and other electronics made up two
fifth of all lead in landfills.

13. Data centers are the main reason behind
energy consumption.
• According to Mark Bramfitt, principal
program manager at PG&E.
“Data center servers use 50 times the
energy per square foot as an office does”
• To keep servers at the right temperature,
companies mainly rely on air conditioning
equipments which leads to even more power
consumption.

14. • Develop sustainable green computing plans.
• Recycle and reuse.
• Purchase products which are environmentally
green and sound.
• Minimizing consumption of paper.
• Conservation of energy
• Green procurement and asset management.
• Technology based solutions.

15. • Google is building a data center on Oregon’s Columbia
River to tap hydroelectric power.
• Microsoft is building its data center nearby in Washington
for the same reason.
• Financial services company HSBC is building a data center
near Niagara Falls.
• Some of the best technology makers are going green. They
are making green computers and computer based products
which are readily available and they even provide buy back
programs to help you dispose off your unwanted computers,
peripherals and other electronic devices.

16. These companies are the ones we all know and trust:
• HEWLETT PACKARD :
1. In recent years, Hewlett Packard has introduced many
Energy Star qualified computers onto the market,
including several that have won high EPEAT ratings. For
example, the HP Elite Book 2530p notebook computer is
Energy Star 5.0 qualified and has earned EPEAT gold.
2. HP is striving to use more recycled materials in its
products and product packaging.
3. HP has also instituted buy back and recycling programs
for all brands of computers, monitors, printers, scanners
and other computer technology.

17. • DELL:
1. Dell has introduced an ultra-green desktop computer
called the Studio Hybrid. It is the greenest desktop
computer up to date, the Studio Hybrid is Energy Star 5.0
qualified, has an 87% efficient power supply and an
EPEAT gold rating.
2. The Dell Studio Hybrid can be customized with
interchangeable sleeves; there's even a sleeve available
that's made from renewable bamboo.
3. Dell has increased its investment in renewable energy
from wind, solar and natural gas capture and has also
made significant efforts to reduce its greenhouse gas
emissions.

18. • APPLE:
1. Apple has begun to make many of its green computers
with recyclable materials such as aluminum,
polycarbonate and glass.
2. Apple has made efforts to remove toxic substances, such as
Brominated Fire Retardants (BFRs), Polyvinyl Chloride
(PVC), arsenic, lead and mercury from its products. Since
2008, the Apple Mac Book Pro has been free from each of
these dangerous environmental pollutants. By 2009, all
Mac notebook and desktop computers had earned an
EPEAT gold rating.

19. • LENOVO:
1. Lenovo uses post-consumer recycled materials such as
plastic water bottles in the manufacture of its green
computers.
2. All Lenovo ThinkPad laptop computers contain 85%
recyclable materials and have achieved an EPEAT
rating of either silver or gold.
3. Through its Eco Take Back program, Lenovo offers
free recycling of all of its computers and other
electronic products for small businesses and
consumers in countries throughout the America, Asia
and Europe.

20. HP ELITE BOOK 2530p DELL STUDIO HYBRID
APPLE MAC BOOK PRO LENOVO THINKPAD

21. • Turn off your computer when they are not in use as
turning off or on will not harm the computer.
• Look for ways to reduce the amount of time your
computer is on without adversely affecting your
productivity.
• While using the laser printers ,don’t turn your printer on
until you are ready to print.
• Unless you require immediate access to E-mails or other
internet services, break the habit of turning on all your
computer equipments all day.

22. • Some other green computing practices include:
 Reducing paper waste:
 Print as little as possible.
 Recycle waste paper as many times as you can.
 Save E-mail whenever possible and avoid needless
printing of email messages.
 Use e-mails instead of faxes to eliminate the number of
hard copy.
 While printing documents use the multiple pages per
sheet option on printer properties.

23. Reusing and recycling of Hardware devices:
E-waste management
Making of unused and old hardware devices or
computing resources reusable through
recycling.
for example-inkjet
cartridges, batteries and diskettes can
be recycled for further use.

24.  Purchasing Recommendations:
 Buy only Energy Star computers, monitors and printers. Flat
panel monitors use about half of the electricity of a CRT
(Cathode-Ray-Tube) display.
 Buy inkjet printers, not Laser printers. These use 80%-90%
less energy than laser printers and print quality can be
excellent.
 Buy non-petroleum based ink. These printer inks are made
from renewable resources, require fewer hazardous solvents,
which translate to fewer air emissions, and in many cases
produce brighter, cleaner colors.
 Buy a monitor only as larger as you really need. A 17-inch
CRT monitor uses 30% more energy than a 15-inch one when
each is in an active mode.

25. • Reduced energy usage from green computing
techniques translates into lower carbon dioxide
emission.
• Saving energy and resources saves money.
• Reduce the risk existing in the laptops such as
chemical known to cause cancer, nerve damage and
immune reactions in humans.
• Conserving resources means less energy is required
to produce, use, and dispose of products.

26. • Green computing could actually be quite costly.
• Some computers that are green may be
considerably underpowered.

27. • The use of eco-friendly sustainable components
will become the norm rather than the exception in
future.
• Energy saved on computer hardware and
computing will equate tonnes of carbon emissions
saved per year.

28. It is clear that the mushrooming growth of IT
industries worldwide is slowly poisoning the
environment. This grave threat requires
immediate attention. Societies need to become
more energy conscious. The need of the hour is for
both governments and the corporate world to join
hands to usher in more green computing solutions
to be able to build a green-globe.

29. • www.brighthub.com/environment/greencomputing/articles/
104850.aspx
• www.brighthub.com/environment/greencomputing/articles/
61813.aspx?cid=parsely_rec
• “the HP Eco solutions”,
www.hp.com/hpinfo/globalcitizenship/environment/commit
ment/our-history.html
• “Dell Earth”, content.dell.com/us/en/corp/dell-earth.aspx
• “Apple and the Environment”,
www.apple.com/environment/
• “Social responsibility environment”,
• " www.lenovo.com/social_responsibility/us/en/environment
.html