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Computers

...their effect on the environment
by

Brittany Mahboobani

on 3 May 2010

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Transcript of Computers

COMPUTERS Brittany Mahboobani & Apaar Bansal Their effect on the Environment Computer Waste Energy Consumption Health Ergonomics After lighting, computers and monitors have the highest energy consumption in office environments.

The energy consumption of computers and monitors is determined by the amount of energy they require to operate and how they are used.

Approximately half of all office computers are left on overnight and on weekends. Evenings and weekends account for 75% of the week, so ensuring computers are turned off at night dramatically reduces their energy consumption.

Power management is a way of ensuring computers and monitors are turned off when not required and in low power mode during idle periods.

Manual power management can achieve impressive results with ongoing education and reinforcement. Alternatively, automatic power management relies on software, or built in energy saving features. Sources http://www.dssw.co.uk/research/computer_energy_consumption.html
http://www.johnpopes.com/technology/how-computers-affect-our-health-21/
http://en.wikipedia.org/wiki/Electronic_waste
http://en.wikipedia.org/wiki/Ergonomics

Sleep disorders: Insomnia or often awakening during the nights.

Headaches: Often caused by improper environment surrounding computer use.

Back pain: Caused by improper chair sitting position and prolonged absence of back muscles exercises.

Poor attention span: We are used to multitasking, working with different programs at the same time and being concentrated on several points on the screen, when feedback is expected. When we are facing only one task, we get bored faster, we can’t concentrate enough on the singular task.
Ergonomics is the science of designing the job, equipment, and workplace to fit the worker. Proper ergonomic design is necessary to prevent repetitive strain injuries, which can develop over time and can lead to long-term disability.

Design Problems Negatively Affecting Workplace Performance
1) Carpal Tunnel Syndrome
2) Neck Tension Irritation
3) Tendinitis Inflammation
4) Thoracic Outlet Syndrome Compression
5) Musculoskeletal Injuries
6) Higher medical cost, lower employee morale and decreased productivity within the company.
•Rapid technology change, low initial cost, and planned obsolescence have resulted in a fast-growing surplus of electronic waste around the globe.
•An estimated 50 million tonnes of E-waste is produced each year.

•USA discards 30 million computers each year and 100 million phones are disposed of in Europe each year.

•EPA estimates that e-waste is growing at two to three times the rate of any other waste source. Discarded electronics represented 5 to 6 times as much weight as recycled electronics. The Consumer Electronics Association says that U.S. households spend an average of $1,400 annually on an average of 24 electronic items, leading to speculations of millions of tons of valuable metals sitting in desk drawers.

•Toxic substances in electronic waste may include lead, mercury, and cadmium.
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