Green Computing

1
Green Computing

• By Rawan M. Al-Ghofaili
• Wejdan A. Al-Ohali
• Weaam A. Al-Gheribi

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Green Computing

• Origins
• In 1992, the U.S. Environmental Protection
  Agency launched Energy Star, a voluntary labeling
  program, designed to promote and recognize
  energy-efficiency in monitors, climate control
  equipment, and other technologies
• The term "green computing" was probably coined
  shortly after the Energy Star program began, and
  generally referred to power consumption
• Green computing is the study and practice of
  using computing resourcese fficiently
• Typically, technological systems or computing
  products that incorporate green computing
  principles take into account the so-called triple
  bottom line of economic viability
• social responsibility, and environmental impact

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Usages

• Usages
• reduction of the use of hazardous materials such
  as lead at the manufacturing stage
• maximized energy efficiency during the product's
  term of use
• recyclability or biodegradability of both a
  defunct product and of any factory waste

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Usages

• Power generation
• All computers require electrical power to
  operate. One of the goals of green computing is
  to use power generated from sources that are more
  environmentally friendly than coal-fired power
  stations
• Virtualization
• Computer virtualization is the process of running
  two or more logical computer systems on one set
  of physical hardware. With virtualization, a
  system administrator could combine several
  physical systems into virtual machines on one
  single, powerful system, thereby unplugging the
  original hardware and reducing power and cooling
  consumption. Several commercial companies and
  open-source projects now offer software packages
  to enable a transition to virtual computing.

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Usages

• Power management
• An open industry standard called Advanced
  Configuration and Power Interface (ACPI) provides
  a standard programming interface that allows an
  operating system to directly control the power
  saving aspects of the hardware. This allows the
  system to automatically turn off components such
  as monitors and hard drives after set periods of
  inactivity.
• Materials recycling
• Many charities have minimum system requirements
  for acceptable computer systems. Broken systems,
  or those too old to be useful to charities, can
  be recycled through some retail outlets and
  municipal or private recycling centers, often at
  a fixed cost per item.
• Recycling old computers has the benefit of
  keeping defunct systems

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Power consumption paper waste

• Paper
• number one material wasted
• 35 pounds out of 100 is paper
• Electricity
• PCs are not being used most of the time they are
  on.
• 30 - 40 PCs are left overnight weekends.
• Leaving a 150 watt computer for one year uses
  energy equivalent to a 1,000 pound pile of coal
  or over 100 gallons of oil..
• In dollars,.130 or more
• laser printers can be as much as 100 watts or
  more when printing though much less if idling in
  a "sleep mode."
• Ink jet printers
• 12 watts while printing
• 5 watts while idling.
• gases emitted by tech equipment equivalent to
  what 2million vehicles
• computers waste half the energy they guzzle