Green Computing is the Future
As the number of PC’s has
approached to count of 2 Billion by 2015, the potential reserves related to
energy usage, CO2 discharges and e-waste are undeniable. Therefore, the concept
of green computing comes into apparition. The environmental effects of
computing should be addressed:Green use, green disposal, green design, and
green manufacturing.
Green Computing is the
study and practice of environmentally sustainable computing or IT which
includes designing, manufacturing, using, and disposing of computers, servers, and associated
subsystems—such as storage devices, monitors, printers and networking and
communications systems — efficiently and effectively with minimal or no impact
on the environment(majorly efficient power consumption).
The goals of green
computing are similar to green chemistry
like dropping the usage of hazardous materials, maximizing energy efficiency
during the product's lifetime, and stimulating the recyclability or biodegradability of obsolete products and
factory waste. Green computing is significant for all types of systems, be it a
handheld device or a large scale data centre.
Approaches to promote Green Computing:
Product’s Life: The biggest contribution to green computing
usually is to extend the equipment's lifetime including upgradability and modularity
as manufacturing a new PC makes a far bigger ecological footprint
than manufacturing a new RAMunit to upgrade a present one.
Algorithm’s Efficiency: The efficiency of
algorithms impacts on number of computer resources required for any computation
and there are many proficient trade-offs in writing programs. Algorithm
changes, such as shifting from a high time complexity (e.g. linear) search
algorithm to a less time complexity (e.g. hashed or indexed) search algorithm
can reduce resource utilization for a given job from substantial to zero and
CO2 emission from systems.
Computer Virtualization: The process of operating
multiple logical computer systems on same set of physical hardware. With
virtualization, a system administrator can merge multiple tangible systems into
virtual machines on one single, powerful system, thereby clearing the original
hardware and eliminating power and cooling consumption. Virtualization can help
in distributing work so that servers are either busy or placed in a low-power
sleep mode.
Power Controlling: The Advanced
Configuration and Power Interface (ACPI),delivers a facility to operating
system to directly control the power-saving features of its underlying
hardware. This permits a system to inevitably switch off components like monitors and hard drives after particular periods of
inactivity. Also, a system may hibernate,
when most components (including the CPU and
the system RAM) are turned off.
Data Centers: Data centers, which have been critiqued for
their excessive energy demand, are a primary focus for protagonists of green
computing.Data centers can possibly improve their energy and space efficiency
through techniques such as storage merging and virtualization. Many
organizations are targeting to eliminate underutilized servers, which results
in excessive energy consumption which can be achieved by training Data Center Administrators.With the help of a self-made super-efficient evaporative cooling
technology, Google Inc. has been able to reduce its energy ingesting to 50% of
that of the industry mediocre.
Cloud Computing: Cloud computing reports two major ICT dares
related to Green computing – energy usage and resource consumption. Virtualization, Dynamic
provisioning environment, multi-tenancy, green data center approaches are enabling cloud computing to lower carbon emissions and energy
usage up to a great magnitude. Large and small businesses both can reduce their
direct energy ingestion and carbon emanations by up to 30% and 90% respectively
by moving certain on-premises applications into the cloud. One conjoint example
includes online shopping
that facilitates people purchase products and services over the Internet
without requiring them to reach physical shop by driving all the way long and
wasting fuels, which, in turn, reduces greenhouse gas emission related to
travel.
Career in Green Computing:
Degree and PG programs,
providing training in Information Technology which specializes in efforts for
sustainable strategies to educate students how to build and maintain systems
while eliminating harmful effects on nature. The Australian
National University (ANU) offers "ICT Sustainability" as
part of its IT and engineering PG programs. Athabasca University
offer a similar course "Green ICT Strategies". In the UK, Leeds Beckett
University offers an “MSc Sustainable Computing program” in both full and part-time programme.
Green Computing
Initiative - GCI offers the Certified Green Computing User Specialist (CGCUS),
Certified Green Computing Architect (CGCA) and Certified Green Computing
Professional (CGCP) certification.
Information Systems Examination Board
(ISEB) Foundation Certificate in Green IT is correct for screening an overall understanding
and wakefulness of green computing and where its application can be valuable.
Australian Computer Society (ACS) The ACS
offers a certificate for "Green Technology Strategies" as part of the
Computer Professional Education Program (CPEP). This certification requires a
student to complete 12 weeks online course which includes written assignments
too, organised by Tom Worthington.
Ms. Garima Verma
Assistant Professor
Deptt. of Information Technology