An important issues for this year is Global Warming. Energy Star specification, it’s the rules set for computer equipment in order to have low power consumption. From July 20, 2007, Energy Star’s new specifications for computers goes into effect, Energy Star 4.0. The new computer specification is expected to save consumers and businesses more than $1.8 billion in energy costs over the next 5 years and prevent greenhouse gas emissions equal to the annual emissions of 2.7 million vehicles. Since computers are in use many more hours per day than in the past, Energy Star has strengthened its requirements to better save energy among computers and related equipment under today’s usage patterns.