Green computing is the environmentally responsible and eco-friendly use of
computers and their resources. Green IT focuses on the design of environmental sustainability, energy-efficient
computing, power management, data centre design layout & location, server
virtualization, responsible disposal and recycling, regulatory compliance, green metrics
assessment tools & methodology, environment-related risk mitigation, use of renewable
energy sources, and eco-labelling of IT products. The environmentally sound practices
such as reducing energy consumption by PCs, enabling power management features,
turning off the system when not in use, using screensavers, using thin-client computers,
greening data centres, energy conservation, eco-friendly design, and virtualization.
EPEAT, Energy Star, RoHS Directive are the Green IT standards and regulations. Three
R's for greening unwanted computers, are Reuse, Refurbish and Recycle.
Improper usage of computers leads to the generation of Greenhouse gases. The
Greenhouse gases is the reason for Global warming. Global warming results in cyclones,
extreme weather conditions, increase in Ocean level, Drought, extreme weather
Conditions, cyclones, etc. Green Computing focus on several areas, such as, power
management, data centre design, use of biodegradable materials, green metrics & green
labelling, carbon footprint assessment, environment related risk mitigation and
compliance of regulations.