17-09-2016, 09:26 AM
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GREEN COPUTING IS THE STUDY AND PRACTICE OF USING COMPUTING RESOURCES EFFICIENTLY , ie WITH MINIMAL OR NO IMPACT ON THE ENVIRONMENT.
Goals of green computing
1. Reduce the use of hazardous materials
2. Maximize energy efficiency during the products life time
3. Promote recyclability
4. Making computer friendlier to environment
5. Account for the triple bottom line(people, planet and profit)
Steps for green computing
*Environmentally Sound Purchase Systems
*Sustainable Green Computing Plan
*Reduce Paper Consumption
*Conserve Energy
*Recycling
How to reduce energy consumption
1. § Do not leave your computer running overnight and on weekends.
2. § A modest amount of turning on and off will not harm the computer or monitor.
3. § Try to plan your computer-related activities so you can do them all at once, keeping the computer off at other times.
4. § Do not turn on the printer until you are ready to print. Printers consume energy even while they are idling.
5. § Do not print out copies of email unless necessary.
Green disposal
Consider that the average computer lifespan is about 2 years (cell phones < 2 years)
-10 years ago, the lifespan of a computer was 5 years
between 1997 and 2004, it is estimated that 315 million computers became obsolete (and were discarded, donated, or recycled)
*183 million computers were sold in 2004
Chemical Elements Found in Computers and Components
Elements in bulk: lead, tin, copper, silicon, carbon, iron and aluminum
*Elements in small amounts: cadmium and mercury
*Elements in trace amounts:
germanium, gallium, barium, nickel
*List of examples of devices containing these elements
almost all electronics contain lead & tin
plastics
Plastics are found throughout the computer, largely from casings but also internally to hold components together
*One specific form of plastics used is polyvinyl chloride (PVC) which is used in cabling and housings
*The plastics in computers are often treated with flame retardant chemicals, particularly brominated flame retardant
Other solutions
=>Reuse: donate your computer components to people who may not have or have lesser quality computers
=>Refurbish: rather than discarding your computer when the next generation is released, just get a new CPU and memory chips – upgrade rather than replace
=>recycling : If companies can recycle the plastics and other components, this can greatly reduce waste and toxins