There are a lot of companies that produce energy efficient computers and laptops. The following is a list: Dell -Dell OptiPlex 740 -Dell Inspiron 531 -Dell Latitude D630 HP -RP5700 EnergyStar -DC7800 SFF EnergyStar -HP Compaq 8510W Apple -MB324 -Veriton M420G -MB471 15" Mac Book Pro
Here is a list of companies that produce energy efficient printers: Dell -Dell 1720dn -Dell 213 cn -Dell 1230c Color Laser Printer HP -Deskjet D1560 -CB373A -Q753A Lexmark -2580 (model number) -2580n -2581
Here is a list of companies that produce energy efficient all in ones: Dell -Dell 1125 -Dell 2135cn -Dell 2335dn HP -Q7493A -Q7494A -Q7695A Lexmark -C534dtn -C543dn -C544dn
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