The Woman Behind the Greenest Laptop (Yes, the OLPC XO)

MaryIf there is a Daniel Boone of the green laptop community it would be Mary Lou Jepsen. Jepsen, the second speaker here this morning, is responsible for developing the innovative, power management, sun-light display technology within One Laptop Per Child’s XO. As the former CTO of OLPC she was instrumental in making the XO one of, if not the “greenest” machine in the computer space. The machine isn’t only shaded green but it is extremely power efficient. So what did we learn about Jepsen’s screen? The screen she has invented isn’t only readable in the sun. It is power efficient because the technology turns off the CPU when the screen’s pixels aren’t moving. “I like CPU makers, I work with them a lot, but they aren’t always the brains,” Jepsen says. In other words, you don’t always need Intel. When the screen is on and just projecting something, you don’t need the power hog CPU running. Jepsen has figured out a way to turn off the constant power using CPU while the screen is still on, but you aren’t doing heavy moving on the system. She describes it as really quick turning on and off of system standy. This type of screen technology means less charging time and less replacement of the battery. In January, Jepsen announced she was leaving OLPC to start PixelQi to bring sunlight readable, low-cost and low-power screens into mainstream laptops, cellphones and digital cameras. So we can hopefully see the tech sooner than later in our gadgets. Jepsen also talked about alternative power sources. Our ears perked up with the talk of the cows. Yes, the XO can run on cranks and a solar panel and animal power. Check back soon for a video of Jepsen talking about the cows… “We can change things,” Jepsen concluded. “A Nigerian boy wrote me an email where he said ‘he loves his laptop more than his life.’ We are throwing away half the minds in this world.”

Email* (will not be published)
*Indicates required field
Submit Comments

  1. Jess Ward Says:

    The XO is a fine eco friendly laptop, and rightly deserves a place amongst the greenest laptops on the planet. However I believe the most energy efficient is the carbon neutral Zonbu notebook. It has an Energy Star 4 rating, and meets current RoHS standards.

All Product Types Accessories Cars Digital Camcorders Digital Cameras eReaders GPS Laptops MP3 & Video Players Projectors Smartphones Software Storage Tablets / MIDs VoIP Wi-Fi
All Subcategories
All Subcategories All-Purpose Budget Business Desktop Replacement Gaming Multimedia Netbook Nettop Rugged Student Tablet PCs Ultraportable
Acer Alienware Apple Archos ASUS Averatec BenQ CTL Corp. Dell Digital Storm eMachines Emtec Everex Fujitsu GammaTech Gateway General Dynamics Getac Gigabyte Hercules HP HTC iBuyPower Intel Lenovo MSI Nokia Nvidia OCZ OLPC OQO Origin Panasonic Sager Samsung Sony Sylvania Systemax TabletKiosk Toshiba Verizon Viewsonic Viliv VooDoo Workhorse PC ZT Systems
Minimum Rating
Any Rating 4.5 Stars 4.0 Stars 3.5 Stars 3.0 Stars
Screen Size
10 11 12 13 14 15 16 17 18 20 4 5 6 7 8 9
1024x576 1024x600 1024x768 1200X800 1280 x 720 1280x1024 1280x768 1280x800 1366x678 1366x768 1440x1050 1440x900 1600x768 1600x900 1680x1050 1680x945 1920x1080 1920x1200 800x400 800x480
Weight Range
10.1 - 12.0 pounds 12.1 - 14.0 pounds 14.1 - 16.0 pounds 2 lbs 2 pounds and under 2+ lbs 2.1 - 4.0 pounds 4.1 - 6.0 pounds 6.1 - 8.0 pounds 8.1 - 10.0 pounds Over 16 pounds Under 2 pounds
more options