A Presentation on

What is Green Computing?

The study and practice of designing, manufacturing, using and disposing of computers and associated subsystems such as monitors, printers, storage devices, networking and communication systems efficiently and effectively with no impact on the environment.

Consequences of Non-Green Computing Release of harmful gases from electronics

More utilization of power and money

Increase of E-waste and improper disposal

Annual Power Wastage and Cost

Appliances

Hours per Day

Watts when ON

Annual Cost of use

Watts on Stand By

Annual Cost on Stand By

% Wasted

TV 2 75 £7.12 14 £14.61 67%

VCR 1 15 £0.07 8 £9.07 99%

COMPUTER 2 60 £5.69 13 £13.57 70%

MICRO WAVE

25 1700 £20.17 24 £27.05 57%

BATTERY CHARGER

6 12 £3.41 10 £3.79 53%

TOTAL COST

£49.36 £104.5

Manufacturing of PCs-Hazards.

Lead: Used in soldering of printed circuit boards. Lead can cause damage to the central and peripheral nervous system , blood systems and kidneys.   Mercury: Used in batteries, switches . Mercury spreads out in water transforming into methylated mercury that can cause chronic brain damage.   Cadmium: Used in resistors for chips and in semiconductors . Cadmium is classified as toxic, these compounds accumulate in the human body, particularly the kidneys.

Benefits of Green Computing

Reduces the amount of pollutants in the surroundings. It saves the power consumption and reduces the amount of heat

produced from the electronics. It reduces the burden on paper industry. Encourages the use of Renewable Resources. Promotes effective utilization of natural resources.

Green Manufacturing Bamboo : is becoming increasingly popular for making casings for computers

and peripherals.

Recyclable plastics : computers are constructed from non-recyclable plastics ie recyclable polycarbonate resin.

   Eco-friendly flame retardant : there are flame retardant silicone compounds

available that are flame retardant and completely non-toxic.  Volume reduction : removes hazardous portion of waste from non hazardous

portion.

Disposal of components

Europe has outlawed using landfills for computer componentsDisposal of these devices constituted 20-50 million tons per year (about 5% of the total waste of the planet)this waste is called e-wasteToxic chemicals in electronics products can reach into the land over time or are released into the atmosphere, impacting nearby communities and the environment.This releases heavy metals such as lead, cadmium and mercury into the air and ashes.

Green Disposal Reuse: donate your computer components to people who may not have or

have lesser quality computers. Refurbish: rather than discarding your computer upgrade it. Change its

some of the parts in order to make it new.  Recycle: One of the major challenges is recycling the printed circuit

boards from the electronic wastes. The circuit boards contain such precious metals as gold, silver, platinum, etc. and such base metals as copper, iron, aluminum.

How to go Green Turn off the computer when not in use, even if just

for an hour Turn off the monitor when not in use Use power saver mode Use hardware/software with the Energy Star label Don’t print unless necessary and you are ready Use LCDs instead of CRTs as they are more power efficient Consider a smaller monitor-a 14-inch display uses 40% less energy than a

17-inch one. Enable Stand By/Sleep mode. Recycling Switching from a locally hosted email system to cloud based email system

Energy Star One of the first manifestations of the green computing movement was the launch of

energy star program back in 1992.

Energy Star served as a kind of voluntary label awarded to computing products that succeeded in minimizing use of energy while maximizing efficiency.

Energy Star applied to products like computer monitors, television sets and temperature control devices like refrigerators, air conditioners, and similar items.

How to save energy while working on the computer? 

Sleep mode:

Sleep or standby mode conserves energy by cutting off power to your display, hard drives and peripherals.

  After a pre-set period of inactivity, your computer switches to a low power

state.

 

Hibernate mode : 

Saves energy and protects your work by copying system data to a reserved area on your hard drive and then completely turning off your computer.

  Reduces wear and tear on your components.

Thank You

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