5. Pollution
•Manufacturing Techniques
•lead, tin, copper, silicon, carbon,
iron,aluminum
Mercury, Plastics…..
•Disposal of computers and
components (E waste)
•Disposal of these devices constituted
20-50 million tons per year (about 5% of
the total waste of the planet)
6. Energy Use of PCs
• Energy use comes from
– Electrical current to run the
CPU, motherboard, memory
– Running the fan and spinning the
disk(s)
– Monitor (CRTs consume more power
than any other computer component)
– Printers
– Servers
• Energy also required to run the
applications,database etc..
• CPU uses 120 Watts
• CRT uses 150 Watts
7. Energy Use In The Data Centre
• Consume 10 to 100 times more
energy per square foot
than a typical office building
• Used about 45 billion kWh
in 2005
• At current rates, power
requirements could Triple
in 8 years.
8. Solutions
• Reuse: Donate your computer
components to people who may not
have or have lesser quality computers
• Refurbish: Rather than discarding
your computer when the next
generation is released, just get a new
CPU and memory chips – upgrade
rather than replace
• Recycling: If companies can recycle
the plastics and other components,
this can greatly reduce waste and
toxins.
9. How Do the Companies Rate
8: Nokia - Regained its top position for eliminating
the worst chemicals from many products
still needs to report on its recycling rate percentage
7.3: Dell - Still among the top but loses points for not
having models free of the worst
chemicals
strong support or global take back
7.3: Lenovo - Dropping down the rank for not having
a clear global take back program
still missing out on products free of the worst chemicals
on the market
7: Sony Ericsson - Among the top with clear timeline
to have products free of the worst chemicals by 2008
need better chemicals take back reporting program
10. Ratings of companies(cont….)
6.7: Samsung - strong position for having a good
chemical policy, but still lack products that are free
from the worst chemicals
its take back system is not yet global and need improvement
6.7: Motorola - some products on the market are free
from the worst chemicals but loses points for not
providing clear timelines for eliminating these
chemicals in all products
score points on reporting the recycling rate
6: Toshiba - good improvement particularly on waste
and take back criteria
moved forward for providing some models without the worst
chemicals and for timelines for complete phase out
5.7: Acer - standing still with improved chemical
policies but no models free of the worst chemicals
needs to improve on take back program
5.3: Apple - top mover with concrete timelines to
eliminate the worst chemicalloses points for not have a
green product on the market and for a weak take back
programs
11. Approaches to GREEN
COMPUTING
•Virtulization: Virtualization is a key strategy to
reduce data center power consumption With
virtualization; one physical server hosts
multiple virtual servers
•Power Management
•Reduce noise
•Reduce cooling requirements
•Reduce operating costs for energy and cooling
•Materials Recycling:This can include finding
another use for the system (i. e. donated to
charity).
12. Way to be the
Green ?
With existing technology…
• Turn off the computer when not
in use, even if just for an hour
• Turn off the monitor when not in
use (as opposed to running a
screen saver)
• Use power saver mode.
• Don’t print unnecessary thing
like mails.
• Use LCDs instead of CRTs as
they are more power efficient
13. Way to be the
Green (cont…)
When purchasing new
equipment…
• Use hardware/software with the
Energy Star label
– Energy Star is a “seal of approval” by
the Energy Star organization of the
government.
• Buying multi-functional
equipment.
14. Green Web Surfing
Greener Google Browsing: Blackle.com
Being Green with Yahoo!
Greener FireFox Surfing
Other Green Surfing Efforts
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15. Conclusion
• Manufacturer’s today aim to improve
energy efficiency by creating designs that
minimize power waste and reduce
emissions
• Devices use less and less power while
renewable energy gets more and more
portable and effective.
• New green materials are developed every
year, and many toxic ones are already being
replaced by them.
• The features of a green computer of
tomorrow would be like: efficiency,
manufacturing & materials, recyclability,
service model, self-powering, and other
trends
