about green computing

1. GREEN COMPUTING
PAST,PRESENT AND FUTURE
SUBJECT CODE : CSQ413
TOPIC NAME : GREEN COMPUTING
GUIDE NAME : MS SNEHA JOHNSON
NAME : ARCHANA MOHANDAS
REG NO : TJE20CS011
01-04-2024

2. CONTENTS
I. Introduction
• What is green computing?
• How green computing harm environment?
II. Significance of green computing
III. Objectives of green computing
IV. Methodologies of green computing
V. Three tier architecture of green computing.
• Module 1
• Module 2
• Module 3
VI. Applications
VII. Future of green computing
VIII. Advantages
IX. Conclusion
X. References 01-04-2024
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3. WHAT IS GREEN COMPUTING?
 Green computing or green IT, refers to environmentally sustainable computing or IT.
It imparts minimal or no impact on the environment.
To reduce the use of hazardous materials, maximize energy efficiency during product’s
lifetime.
It use the computer in a eco-friendly manner.
INTRODUCTION
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4. Industry
19.60%
Electricity
and heat
45.90%
Transport
23.00%
Residential
6.60%
Other
4.90%
PC’s & monitors
40%
Fixed line
telecommunication
15.00%
LAN &office
telecommunication
Servers
23.00%
Mobile
telecommunication
9.00%/
Printers
6.00%
Total CO2 emission in the world CO2 emission caused by IT field
WHAT IS GREEN COMPUTING?
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Fig 1 Fig 2

5. HOW TECHNOLAGIES HARM ENVIRONMENT?
 Cost of Spam
– 62 trillion spam messages in 2020.
– 0.3 grams of carbon dioxide (CO2) per message.
– annual spam energy use 33 terawatt hours.
– equivalent to the electricity used in 2.4 million homes every year.
 The CO2 dissipated from ‘sleeping’ devices = 1/7th the CO2 emitted by an automobile.
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Fig 3

6.  By electronic appliances.
 Desktop requires 85 watts just to idle(Monitor off).
 Left on 24 hrs/day-1,500 pounds of CO2 per year.
 A tree absorbs between 3 and 15 pounds of CO2 each year.(up
to 500 trees)
 Hazardous materials inside computers.
 These contain – Cadmium - damage kidneys
– Mercury - neurological damage
– Lead - disrupt brain neurotransmitter
HOW TECHNOLOGY HARM ENVIRONMENT?
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Fig 4
Fig 5

7.  Environmental Impact: Green computing aims to reduce the environmental impact of
technology.
 Energy Efficiency: Energy-efficient technologies and practices reduce the power consumption
of computers and data centers.
 Resource Conservation: Green computing encourages the responsible use of resources.
 Longevity of Technology: Sustainable computing encourages the development of longer-
lasting, upgradable devices.
SIGNIFICANCE OF GREEN COMPUTING
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8.  Renewable Energy Integration: Using renewable energy sources like solar and wind power
to run data centers and devices is a crucial aspect of green computing.
 Reduced Heat Emission: Energy-efficient computing components generate less heat.
 Regulatory Compliance: Governments and regulatory bodies are increasingly imposing
energy efficiency and environmental standards on the technology industry.
 Cost Savings: Green computing practices often lead to cost savings in terms of energy bills
and reduced maintenance costs.
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Continuation..

9. OBJECTIVES OF GREEN COMPUTING
 Reduce climate change
 Savings
 Reliability of Power
 Computing
 Reduce the use of hazardous materials
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Fig 6

10. Continuation..
Climate Change :
 First and foremost, conclusive research shows that CO2 and other emissions are causing global
climate and environmental damage.
 Preserving the planet is a valid goal because it aims to preserve life. Planets like ours, that
supports life, are very rare.
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Fig 7

11. Continuation..
Savings :
 Green computing can lead to serious cost savings overtime.
 Reductions in energy costs from servers, cooling, and lighting are generating serious
savings for many corporations.
 Maximize energy efficiency during the product’s lifetime.
 Promote the recyclability or biodegradability of defunct products and factory waste.
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12. Continuation..
Reliability of Power :
 As energy demands in the world go up, energy supply is declining
or flat.
 Energy efficient systems helps ensure healthy power systems.
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Fig 8

13. Continuation..
Materials Recycling :
 Parts from outdated systems may be salvaged and recycled through certain retail outlets and
municipal or private recycling.
 Many organizations, including some manufacturers themselves, are willing to take equipment
back and recycle the components into new products.
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Fig 9

14. METHODOLOGIES OF GREEN COMPUTING:
Virtualization :
Computer virtualization is the process of running two or more
logical computer systems on one set of physical hardware.
Telecommuting :
 Reduction of greenhouse gas emissions related to travel and
increased profit margins.
 Increased worker satisfaction.
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Fig 10
Fig 11

15. Power Management :
 ACPI allows an operating system to directly control the power saving aspects of its underlying
hardware.
 Prolong battery life for portable and embedded systems.
 Reduce cooling requirements.
 Reduce noise.
 Reduce operating costs for energy and cooling.
Continuation..
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16. 16
3 TIER ARCHITECTURE OF GREEN COMPUTING
 Each layer has its own services and provider services to the above layer.
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Fig 12

17. MODULE 1.
Physical Hardware Services Environment
 Energy-Efficient Components: Use low-power hardware components, such as processors,
memory, and storage devices, to reduce energy consumption.
 Optimized Cooling: Implement efficient cooling solutions, like liquid cooling or hot/cold
aisle containment, to reduce the energy required for temperature control.
 Virtualization: Utilize server and storage virtualization to consolidate physical resources,
reducing the number of servers and associated energy usage.
 Renewable Energy: Consider using renewable energy sources to power hardware, such as
solar panels or wind turbines for data centers.
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18.  Power Management:
- CPU Power Management
- Device Power Management
 Resource Allocation:
-Task Scheduling
-Memory Management
 I/O Operations:
-Disk Spin-down
-Network Management
MODULE 2.
Operating System Services Environment
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19.  Energy-Efficient Software: Develop and use applications that are optimized for energy
efficiency.
 User Education: Educate users and developers about energy-efficient coding practices and the
importance of minimizing unnecessary resource consumption.
 Cloud-Native Applications: Design applications that can take advantage of cloud computing's
scalability.
 Monitoring and Optimization: Implement application performance monitoring to identify
resource-intensive processes and optimize them for energy efficiency.
MODULE 3.
Application Services Environment
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20. Zonbu Computer :
 Energy efficient PC.
 Consumes just 1/3 of the power of a typical light bulb.
 The device runs the Linux operating system using a 1.2 GHz processor and 512 MB of RAM.
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 power than a traditional PC consumes in 1 hour.
Sun Ray thin Client :
 Thin clients like the Sun Ray consume far less electricity than conventional desktops.
 A Sun Ray on a desktop consumes 4 to 8 watts of power, because most of the heavy
computation is performed by a server.
 Suited for cost-sensitive environments.
APPLICATIONS OF GREEN COMPUTING
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21. 1.Steps by Apple
 MacBook keyboards are made from one single piece of aluminum
 MacBook pro notebooks have long lasting batteries where as a normal
notebook uses three batteries
 A MacBook will only use one through out its life time.
2.Steps by DELL
 Their free world-wide product recycling program allows user to
properly dispose their product safely.
 Their “Plant a tree for me” project can offset a customers carbon
emissions for only three dollars.
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Fig 13
Fig 14

22. FUTURE OF GREEN COMPUTING
 The plan towards green IT should include new electronic products and services with optimum
efficiency and all possible options towards energy savings.
 That is enterprise wise companies are laying emphasis on moving towards eco friendly
components in computers.
ADVANTAGES
 Energy saving.
 Environmentally Friendly.
 Cost-effective.
 Save more money per year.
 Can give you a tax right off. 01-04-2024
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23. CONCLUSION
 So far, consumers haven’t cared about ecological impact when buying computers, they’ve
cared only about speed and price .
 Green computing can lead to a lot of energy savings, reduction in emission of co2 & CFC’s
which leads to environment protection.
 It also leads to serious cost savings overtime.
 The features of a green computer of tomorrow would be like :
• Efficiency in manufacturing and materials.
• Recyclability.
• Server model.
• Self-powering.
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24. REFERENCE & RESOURCES
[1]. http://en.wikipedia.org/wiki/Green_computing
[2]. http://www.kristv.com/Global/story.asp?S=8744027
[3]. www.climatesaverscomputing.org
[4]. Green IT For Dummies-Hewlett Packard Limited Edition
[5]. http://www.almostallthetruth.com/wp‐content/uploads
/2022/11/First‐Earth‐Day‐solutionpollution.jp
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