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One Laptop per Child

One Laptop per Child. One Laptop per Child. The Laptop Sept. 18, 2008 . Laptop, 1992. Apple Macintosh Duo 230 640x400 (190x120mm) Monochrome Display 33 MHz Processor 8 MB RAM 0.1 GB disk storage 4.2 lbs 24W charger $2800. Laptop, 2008. Apple MacBook Pro

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One Laptop per Child

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  1. One Laptop per Child One Laptop per Child The Laptop Sept. 18, 2008

  2. Laptop, 1992 Apple Macintosh Duo 230 640x400 (190x120mm) Monochrome Display 33 MHz Processor 8 MB RAM 0.1 GB disk storage 4.2 lbs 24W charger $2800

  3. Laptop, 2008 Apple MacBook Pro 1440 x 900 (332x208mm) Color display 2GHz Dual Processor Graphics Coprocessor 2000 MB RAM 160 GB disk storage 5.4 lbs 85W charger $2800

  4. Traditional Laptops • Continual improvement: • More computing power • More non-volatile storage • Constant Price Floor • Designed for Office Environments

  5. Laptop, 2008 OLPC XO 1200 x 900 (152x114mm) Color Display 466 MHz Processor Graphics Coprocessor 256 MB RAM 1 GB solid-state storage 1.45 kg 17W charger $200

  6. Why an XO ? • Sunlight Readable Display • Low Power • Robustness • No moving parts • Other than buttons • Simple to Repair

  7. XO Display • Sunlight readable (reflective/transmissive) • 1200 x 900 monochrome • Slightly less resolution in color • Replaceable LED backlight • Low power, low cost, safe • At 50 C, difficult to reach 5 year lifetime

  8. XO Low Power • Independently powered subsystems: • Display • Wireless Net • Fast suspend/ resume • tens milliSec. • LED backlight

  9. XO Power Management • Battery performance strongly dependent on software activity ! • Available today: • Hardware ready for suspend/resume • 40K cycles tested vs. 20 for normal laptop • About 4 hours of battery life during normal use • 14-16 hours of battery life in sleep mode • Future: • OHM management for suspend/resume • Aggressive CPU suspend

  10. XO Robustness • No disk drive ! • No fans ! • Sturdy case • ABS/PC bumpers • Steel plate in base • 1.5 m drop test • Water and dust proof keyboard • 5 year lifetime

  11. XO - Simple to repair • Eight screws to replace display • Single motherboard

  12. XO Gen 2 Goals (in order) • Lower Power • Lower Cost • More Robust • More Performance

  13. Roadmap 2008 2009 2010 Early prototypes Pre-production Gen2 Production

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