Green computing is the environmentally responsible and Eco-friendly use of computers and their related resources.

1. -ENERGY EFFICIENT AND E-WASTE REDUCTION

2.  INTRODUCTION
 ENERGY STAR
 NEED OF GREEN COMPUTING
 APPROACHES
 IMPLEMENTATION
 CHALLENGES IN GREEN
COMPUTING
 BENEFITS
 STEPES TO GO GREEN
 CONCLUSION

3.  Green computing is the environmentally
responsible use of computer and related
resources.
 The study and practice of designing,
manufacturing, using, and disposing of
computers, servers, and associated
subsystems efficiently and effectively with no
impact on the environment.

4.  One of the first manufacture of the green
computing movement(EPA) was the launch of
energy star in 1992.
 The term GREEN COMPUTING was coined
shortly after energy star began.
 Energy Star applied to products like computer
monitors, televisions sets and temperature control
devices like refrigerators, air conditioners, and
similar items.

5. DSS
 Computer Energy is often Wasteful
 Printing is often Wasteful
 Pollution

6.  Leaving the computer on when not in
use(CPU) and it can consume power, screen
savers consume power.
 As we know that plastic is a hazardous
material, but the electronic waste(E-Waste) is
more hazardous than the plastic.

7. P
 How many of you print out your emails or
meeting agendas.
 Printing out partial drafts.
 For a “paperless” society, we tend to use more
paper today than before computer-prevalence.

8.  E-Waste: After the disposal of electronic
waste(E-Waste) it produces pollution to the
environment ultimately that makes toxicity.
 Toxicity: There are toxic chemicals used in the
manufacturing of computer and components

9.  Virtualization
 Power Supply
 Video Card
 Display

10. Virtualization: Duplicating hardware with software.
 Realizing a piece of hardware such as web server or file server
in software rather than hardware writing a program that does the
same exact thing as a piece of hardware.
 Effect of Virtualization:
255 Servers -> 22 Servers only
 This has resulted in a saving of almost 50-70% of energy can be
saved from Virtualization

11. per
 A power supply is an internal hardware component that supplies
component in a hardware with power.
 A power supply converts a 110-115 or 220-230 volt alternating current(AC)
into a steady low-voltage direct current (DC).
 Power supplies include simplicity,relaibility,low noise levels and low cost.

12. V
A fast GPU may be the largest power consumer in a computer
Energy efficient display option include:
 No video card-use a shared terminal, shared thin client, or
desktop sharing software if display required.
 Use motherboard video output-typically low 3d performance and
low power.
 Reuse an older video card that uses little power, many do not
require heat sinks or fans. Select a GPU based on average wattage or
performance per watt.

13.  Early days, we use Cathode ray tube(CRT) which consumes
high amount of electricity and also it gives heat.
 LCD monitors use a cold-cathode fluorescent bulb to provide
for the display. Some newer displays use an array of LED
instead of Fluorescent bulbs.
 Light emitting diodes(LEDS), which reduces the amount of
electricity used by the display.
 LCD monitors uses three times less when active, and ten
times less energy when in sleep mode.

14. c
 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.

16.  Equipment power density/Power and cooling capacities.
 Increase in energy requirements for data centers and growing
energy cost.
 Control on increasing requirements of heat removing equipment,
which increases because of increase in total power consumption
by IT equipments.
 Equipment Life cycle management- Cradle to Grave.
 Disposal of Electronic Wastes.

17.  Reduces the amount of pollutants in the surroundings.
 It saves the power consumption and reduces the
amount of heat produced from the electronics.
 It reduces the burden on paper industry.
 Encourages the use of Renewable Resources.
 Promotes effective utilization of natural resources.

18. GREEN USE:
 Reducing the energy consumption of computers and other information
systems.
GREEN DISPOSAL:
 Reduction of waste, reuse and refurbishment of hardware and
recycling of out of use peripherals and other items.
GREEN DESIGN:
 Designing energy-efficient and environmentally sound components,
computers,servers,cooling equipment and data centers.
GREEN MANUFACTURING:
 Manufacturing electronic components, computers and other
subsystems with minimal impact on the environment.

19.  The green technology doesn’t include green computing only but also focuses on the
components used in the computer.
 As, energy star is used nowadays focuses on the computer does not affect the
environment.
 Green computing represents a responsible way to address the issue of global warming.
 By adopting green computing practices, business leaders can contribute positively to
environmental stewardship and protect the environment while also reducing energy and
paper costs.
 Nowadays, every computer manufacturing company is focusing on the green IT concept.
 However, this reality does at least mean that a widespread mind set already exists for
both adapting to and paying money for new computer hardware on a regular basis.

20. REFERENCES
 San Murugesan,”Hamseing Green IT: Principles and Practices,”IEEE IT
Professional.
 http://gcomputing2011.blogspot.in/o/green-computing.html
 https://www.enerystar.gov
 “Kyoto Protocol/items/2830.php