semiar topic on green computing ppt presentation report on green computing webinar on green computing

1. ?
Green Computing
Anand Pradhan
CSE 6th Semester
Roll no. 2009070
Submitted to-:
Mrs. Shan-e-Fatima

2. Green Computing
• It is the study of efficient and eco-
friendly computer resources.
• In recent years , computer industry
have come to realize that going green is
their best interest
• Environmental Protection Agency (EPA)
launched the energy star program

3. Why Green Computing
– Computer Energy is Often Wasteful
• Leaving the computer on when not in use (CPU and
fan consume power, screen savers consume power)
– Insufficient Power and Cooling Capacities
• Data centers have insufficient cooling capacities.
– Pollution
• Manufacturing techniques and Packaging
• Disposal of computers and components creates
Electronic wastes
– Global Warming
• Climates changes and Ice cap shrink at north poles

5. Approaches To Green Computing
Algorithmic efficiency - Algorithm changes, such as switching from a slow (e.g.- linear)
search algorithm to a fast (e.g.- hashed or indexed) search algorithm can reduce resource
usage for a given task from substantial to close to zero. Impact on amounts of resources for
computing function.
Virtualization – Process of running two or more logical computer system on one set of
hardware .It’s enterprises lower power and cooling consumption by reducing number of
machines and server it needs.
Power Management – Turn of or set sleep computers and printers when not in use,
Laptop should be preferred over desktop . Due to this we save energy approx. 40%.
Material Recycling – E-waste handling , reuse , refurbish.
change our subscriptions to online not paper.
E.g. - Carbon Dioxide Released per search:
Google Search ≈ 0.20gm
Microsoft Live Search ≈ 0.32gm
Yahoo Search ≈ 0.26gm
AOL Search ≈ 0.37gm.
We say that efficient algorithm release less CO2.

6. • Power-sucking displays can be replaced with green light displays made
of OLEDs, or organic light-emitting diodes.
• Use of toxic materials like lead can be replaced by silver and copper.
• Higher-quality power supplies can be over 80% efficient; higher
energy efficiency uses less power directly and requires less power.
• Turn your computer and monitor off when you are not using it.
• Specify low energy consumption level in Request for Tender
documents.
GREEN COMPUTING DEVELOPMENT
TECHNIQUES

7. CONCLUSION
• As 21st century belongs to computers , energy issues will get a
serious ring in the coming days.
• If we think computers are nonpolluting and consume very little
energy, we need to think again.
• It is estimated that out of $250 billion per year spent on powering
computers worldwide only about 15% of that power is spent
computing- the rest is wasted idling.
• Thus, energy saved on computer hardware and computing will
equate tones of carbon emissions saved per year.

8. ?
Save Energy and Our Environment