Green computing aims to design, build, and operate computer systems to be more energy efficient while also improving economic viability and system performance. It seeks to reduce the negative environmental impact of computing devices through their entire lifecycles from production to disposal. Current trends in green computing include efforts to reduce e-waste, increase energy efficiency in data centers and devices, optimize data center resources through consolidation and virtualization, promote eco-labeling of green IT products, and leverage the energy efficiency of cloud computing and terminal servers.

1. 5RESEARCH ANALYSIS AND EVALUATION
International Indexed & Refereed Research Journal, ISSN 0975-3486, (Print) E-ISSN-2320-5482, July,2013 VOL-IV *ISSUE- 46
Research Paper—Computer Science
July ,2013
Introduction
Green Computing is a recent trend towards
designing, building, and operating computer systems
to be energy efficient. Green IT also strives to achieve
economic viabilityand improved system performance
and use,whileabidingbyoursocialandethicalrespon-
sibilities.GreenITincludesthedimensionsofenviron-
mental sustainability, the economics of energy effi-
ciency, and cost of ownership, which includes the cost
of disposal and recycling. It is the study and practice
ofusing computing resources efficiently.The efficient
use of computers and computing is what green com-
puting is all about. The solution to green computing is
to create an efficient system that implements these
factorsinanenvironmentallyfriendlyway.Ifeveryone
takes into account green computing then our world of
computers will have as small negative impact on our
physical world as possible and that is what green com-
puting is all about.
Currenttrends
Current trends of Green Computing are to-
wards efficient utilization of resources. Energyis con-
sidered as the main resource and the carbon footprints
are considered the big threads to environment. There
are several areas where researchers are putting lots of
efforts to achieve desired results:
1.E-WasteRecycling
Majority of countries around the world re-
quireelectronicindustriestofinanceandmanagerecy-
cling programs for their products especially under-
developed Countries. Green Computing must take the
product life cycle into consideration; from production
to operation to recycling. E-Waste is a manageable
pieceofthewastestreamand recyclinge-Wasteiseasy
to adopt.
CurrentTrends in Green Computing
* Pardeep Seelwal
*Asst.Prof.,J.V.M.G.R.R.(P.G.)College,CharkhiDadri
Green computing aims to attain economic viability and improve the way computing devices are used. Green computing is
the environmentally responsible and eco-friendly use of computers and computer's resources. In broader terms, it is also
defined as the study of designing, manufacturing/engineering, using and disposing of computing devices in a way that reduces
their environmental impact. Green computing is also known as green information technology (green IT). Saving energy or
reduction of carbon footprints is one of the aspects of Green Computing. The research in the direction of Green Computing
is more than just saving energy and reducing carbon foot prints. This study provides a brief account of Green Computing.
The emphasis of this study is on current trends in Green Computing; challenges in the field of Green Computing and the
future trends of Green Computing.
A B S T R A C T
2.EnergyConsumption/EnergyEfficiency
The Energy Star program promotes energy
efficientproducts throughitscertification andproduct
labeling. For instance, it is credited with giving the
world thesleep modefor computerconsoles.Thisidea
is now seen in the operation of the most advanced
multi-core processors, which can hibernate some of
their processing cores when their computing energy is
unneeded, thus saving energy. The fewer watts a com-
puter requires to run a workload, the less heat is pro-
duced so less cooling is required to maintain opera-
tional temperatures.
3.DataCenterConsolidation&Optimization
Currently much of the emphasis of Green
ComputingareaisonDataCenters,astheDataCenters
are knownfor theirenergyhungerand wasteful energy
consumptions. Data Centers are worthwhile to con-
centrate on Information Systems - efficient and right
set information systems for business needs are a key
in building Green Data Centers.As per green comput-
ing good practices efficient servers, storage devices,
networking equipments and power supply selection
playa keyrole indesign ofinformation systems.Cool-
ing Systems are suggested by the researchers that at
the initial stage of design process for data center cool-
ing systems, it is significant to consider both current
and future requirementsand designthecoolingsystem
in such a way so it is expandable as needs for cooling
dictates.
4.Virtualization
One common way to go greener is through
virtualization.Virtualizationisthecreationofavirtual,
rather than actual, version of something, such as an
operatingsystem,aserver,astoragedeviceornetwork
resources.Abstraction of computer resources, such as
the running logical computer systems on one set of

2. 6 RESEARCH ANALYSIS AND EVALUATION
International Indexed & Refereed Research Journal, ISSN 0975-3486, (Print) E-ISSN-2320-5482, July,2013 VOL-IV *ISSUE- 46
physicalhardwareiscalledvirtualization.Virtualization
is a trend of Green computing. It offers virtualization
softwareaswellasmanagementsoftwareforvirtualized
environments. One of the best ways to go towards
green computing and save enough space, enough re-
sources, and the environment is by streamlining effi-
ciency with virtualization.
5.ITProductsandeco-labeling
One another approach to promote Green
Computing and save environment is to introduce poli-
cies all around the World, so that, companies design
products to receive the eco-label. There are several
organizations in the world which support "eco-label"
IT products.Theseindustriesprovidecertificatesto IT
products based on factors including design for recy-
cling, recycling system, noise energy consumption
etc.
6.CloudComputing
Cloud Computing has recently received sig-
nificantattention,asapromisingapproachfordeliver-
ing Information and Communication Technology ser-
vices by improving the utilization of Data Center re-
sources. Cloud computing is energy-efficient technol-
ogy for ICT provided that it's potential for significant
energy savings that have so far focused on only hard-
ware aspects, can be fully explored with respect to
system operation and networking aspects also. Cloud
Computingresultsinbetterresourceutilization,which
is good for the sustainabilitymovement for greentech-
nology.
7. Terminal servers
Terminalservershavealso beenusedingreen
computing. When using the system, users at a terminal
connectto acentralserver;allcomputingisdoneonthe
server, but the end user experiences the operating sys-
temontheterminal.Therehasbeenanincreaseinusing
terminalserviceswiththinclientstocreatevirtuallabs.
ExamplesofterminalserversoftwareincludeTerminal
Services for Windows and the Linux Terminal Server
Project for the Linux operating system.
Conclusion
In the wake of global warming and concerns
overitsimpactduetoenvironmentalDegradation,there
isanurgentneedfortheITpractitionerstocomeforward
and integrate a green agenda into their manufacturing
models. In order to utilize the new IT technology, an
individual needs to be aware of the products they are
buying. Paying attention to things like the energy star
ratingalongwiththegeneralcomponentsofacomputer
can help to greatly reduce the amount of electricity
used on a day to day basis. Replacing old equipment
withnewandmoreefficientequipmentisonlyeffective
if the efficiency difference is high and the old equip-
ment can be recycled or reused instead of simply end-
ing up in a landfill.
1. http://www.asaecenter.org/Resources/ANowDetail.cfm?ItemNumber=42770
2. The Greening of IT: How Companies Can Make a Difference for the Environment by John P. Lamb
3. Green IT For Dummies by Margaret Levine Young
4. 7. IT Virtualization Best Practices: A Lean, Green Virtualized Data Center Approach by Mickey Iqbal
5. Foundation of Green IT: Consolidation, Virtualization, Efficiency, and ROI in the Data Center by Marty Poniatowsk
6. http://joaag.com/uploads/7_1__6_Agarwal____Agrawal_FINAL.pdf
7. Strategies for the Green Economy: Opportunities and Challenges in the New World of Business by Joel Makowe
R E F E R E N C E