Green computing slides..... Definition...examples....approaches....history.....advantages..... disadvantages....conclusion.....case study.....thin clients....questions....

2. The next wave in Computing,
For a Cleaner World
By:
Umair Ijaz (16-arid-812)
Muhammad Usman(16-arid-767)
Zaheer Ullah(16-arid-825)

3. Make Everyday Earth Day

4. Overview of Green Computing
 “ Greening” your computing equipment
is a low-risk way for your business.
 It not only help the environment but also
reduce costs.
 It is one of the largest growing trends in
business today.
 Making a proper decision to go green
not only improves the net profit of your
business, but also reduces your carbon
footprint.

5. What is Green Computing ?
Green computing is the environmentally
responsible and eco-friendly use of computers and
their resources. In broader terms, it is also defined
as :
“The study of designing, manufacturing,
using and disposing of computing devices in a
way that reduces their environmental impact.”

6. History:
 The term “ Green Computing" was probably coined
shortly after the Energy Star program began way
back in March 15, 1992.
 One of the first results of green computing was the “
Sleep mode” function of computer monitors.
 As the concept developed, green computing began
to encompass thin client solutions, energy cost,
accounting, virtualization practices, e-Waste, etc.

7. Why Go
Green?
Climate Change:
• CO2 and other emissions are causing global climate
and environmental damage.
• Preserving the planet is a valid goal because it aims to
preserve life.
 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.

8. Why Go
Green?
 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.
 Sustainability:
• The larger value of going green relates to maintaining
the health of the environment.

9. Green Computing Approach
 Turn off the computer when
not in use.
 Turn off the monitor when not
in use.
 Use LCDs instead of CRTs as
they are more power efficient.
 Reduce Power Consumption.
 Goodbye screen saver
 Standby modes
 Power off

10. Green Computing Approach
 Optimize computer performance.
 Reduce paper consumption.
 Use email,electronic archiving
 Don't print until required
 Recycle
 Discard used or unwanted
electronic equipment in a
convenient and environmentally
responsible manner
 E-waste management

11. Advantages:
Energy saving
Environmental Friendly
A means to a better corporate image.
Cost-effective(pays over time)
Conserving Resources
Reduce the risk existing in laptops

12. Disadvantages
High Start up cost
Not readily available
Still in experimental stages
Sacrifices performance for battery life
Not for everyone

13. Conclusion
 Whilst the performance and the breadth of application of computers
is increasing, so too is our awareness of the cost and scarcity of the
energy required to power them.
 In terms of the environmental debate computing is definitely both
part of the problem and part of the solution.
 The computing industry is more prepared and far more competent
than almost any other industry when it comes to facing and
responding to rapid change.
 Replacing old equipment with new and more efficient equipment is
only effective if the efficiency difference is high.

15. Case Study
Energy consumption is a major concern for businesses and the global
population as a whole, and an important part of a bigger IT concern called
total cost of ownership (TCO). One way to reduce TCO is to use server-based
computing, a computing model in which applications run on a central back-
end server and are displayed on desktop devices.
Both PCs and thin clients can be used in a server-based computing
environment; however thin clients are the preferred desktops for server-
based computing. Thin-client devices are simple computers designed to run
applications from a central server.e.g; both PCs and thin clients display the
same commonly used Windows desktop interface to the end-user, and have
the same features such as keyboard, mouse, serial and parallel ports and
network connectivity.

16. Case
Study(cont')
At the same time, thin clients are very different.
 They have lower microprocessor requirements and lower memory
requirements than PCs while providing an identical end-user experience.
 Thin clients are literally smaller, some the size of a CD case, and most lack
removable drives (or any drives), making it impossible for those using them to
steal electronic data on floppy disk or introduce viruses to the network.
 In short, thin-client devices are designed to cost less than PCs to run and
maintain.
 Using thin client devices with server-based computing reduces TCO even more
than server-based computing with PCs.
 An additional factor makes thin-client devices even more attractive than PCs:
they use significantly less power.

17. Questions
1. How thin clients are better than
PCs? Any One reason!
2. Why thin clients are preffered
desktops for server based
computing?
3. Is Green Computing need of the
hour?If yes then how?