An overview

of Green Computing

Outline

Introduction

Aim of Green Computing

What We Need to do

Green Technologies

Green Web Surfing

To Summarize

References

As computers play a larger role in our lives, energy demands,and power waste are concerning dramatically.

Power consumption is causing serious problems because ofmore generated heat.

The added heat from computers/components can increase thecost of air conditioners for cooling solutions, it has significant

effects on the system performance and making your computing

equipment even more expensive to run.

The higher or maximum power dissipation needed moreexpensive thermal management or cooling solutions. INTEL

estimates that more than 1$/W per processor chip will be added

once the processor power dissipation up to 35-40 Watts

Introduction

Green computing is the environmentally

responsible use of computers/systems and

related components . Such systems include the

implementation of energy-efficient central

processing units (CPUs), servers and units as

well as reduced all hardware energy

consumption.

So, Green Computing is the system

Power/Thermal aware computing

Introduction

The Computer Energy use comesfrom:

- electrical current to run the CPU,motherboard, memory, ..

- running the fan and running thedisk(s)

- Monitors

- Printers

computer energy is often wasteful

leaving the computer on whennot in use (CPU, Memory,Motherboard, and fan consumepower, )

Introduction

In order to achieve sustainable computing, we needto rethink from a Green Computing standpoint,because :

Green Computing:

* Maximize energy efficiency

** Reduce of the system falling percentages.

*** Minimize the total generated heat

Aim of Green Computing

Understand all levels of the computer/Systems

Understand where power is dissipated

Think about ways to reduce power usage at all levels as well as the generated temperature.

What We Need .

Transistors & Digital Logic

Integrated Circuit

Computer units

Hardware

Our computers SLEEP and HIBERNATE settings are two ofthe most effective ways to make our computer more

environmentally friendly.

SLEEP MODE

Sleep mode conserves energy by cutting off power to ourdisplay, hard drive, and peripherals. After a pre-set period of

inactivity, our computer switches to a low power state. .

HIBERNATE MODE

Hibernate mode saves energy and protects our work bycopying system data to a reserved area on our hard drive and

then completely turning off our computer. It also reduces wear

on our components. When we turn power back on, our files

and documents appear on our desktop just as we left them.

Simple Steps to Be Taken Toward Green Computing

Power-down the CPU and all peripherals during extendedperiods of inactivity. (Power Gating)

Try to do computer-related tasks during active of time, leavinghardware off at other times.

Power-up and power-down energy-intensive peripherals suchas printers according to need.

Use liquid-crystal-display (LCD) monitors instead of cathode-ray-tube (CRT) monitors.

Use low power computers rather than high power or desktopcomputers whenever possible.

Use the power-management features to turn off hard drives anddisplays after several minutes of inactivity.

(Dynamic Power Management), (Dynamic ThermalManagement)

Simple Steps to Be Taken Toward Green Computing

Green Technologies

green technology or clean technology is the

application of one or more of system units

and electronic devices to monitor, and

conserve both of the power and

temperature, and to minimize the negative

impacts of human environment.

Power saving by D-link Green

When a computer or network equipment is shut down, switches

often remain on and continue to consume considerable amounts

of power. With D-Link Green Technology allows switches to

automatically detect link status and reduce power usage of ports

that are idle.

D-Link Green verified switches have the ability to analyze the

length of any Ethernet cable connected to them for adjustment of

power usage accordingly. Shorter lengths require less power.

Green Technologies

Time based Power Over EthernetTime-based PoE optimization turns PoE on or off based on a

schedule to save power. When PoE devices are not in use

(i.e. during the night) PoE can be disabled until needed.

Green Web Surfing

Green Web Surfing

Greener Google Browsing www.google.com/green

Being Green with Yahoo!

Greener FireFox Surfing

Other Green Surfing Efforts

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To summarize Green computing is a novel and an innovativetrend of computing which has minimum impact

on the environment.

Green computing has introduced a range ofhardware units and technologies which help in

limiting the power/temperature.

Use of Energy bases in different aspects of thecomputing technology help in recognizing the

areas for improvement.