OLPCホームページまとめ

OLPC
It's not a laptop project. It's an education project.
・2002ネグロポンテがカンボジアでの体験が基盤
・ミッションは学習と自己表現の機会を20億人の教育が行き届かない子供に提供すること
・情報社会の中で子供たちが社会的な損失となる

It is time to rethink this equation
・教育にさける予算が少ない中で、伝統的な教育ではjobを果たすことができない
　　・今まで通りの援助は教育機会の保障に不十分

Standing still is a reliable for going backward
・XOはシーモアパパートのconstructionismを具現化したもの
・貧困地区では学ぶことを学ぶことが必須の教育経験であることがはっきりした
・コンピュータは子供に考え方を学ばせる点で他にはない力を持つ
・地球上どんなところにいる人にもポテンシャルを開花させる機会と世界と交流するチャンスを

質問
What is the XO?
・リナックスベース
・カラー/白黒対応の液晶
・CPU：433MHz
・DRAM：256MB
・USB：3
・SD：1GB
・メッシュネットワーク
・省エネ設計

Why not a desktop computer,or a recycled desktop machine?
・モビリティーが重要、家に持って帰れるように
　　・家の明かりにもなる
・リサイクルPCをチェックするのは時間がかかりすぎる

How is it possibl to get the cost so low?
・ディスプレイのお金を節約した
・内容のスリム化
・大量生産

What's wrong with community-access centers?
・コンピュータは思考の道具だから子供が持つべき

What about connectivity?
・メッシュネットワークを作る
・インターネットも同様に、ただし研究中

What can a $2000 laptop do that the $200 version cannot?
・教育向けなので、それに関する部分は$2000よりも良い
・速度などのそのほかの部分は弱い

How will these be marketed?
・おもに政府向けに売られる
・G1G1プロジェクト

Who is the original design manufacturer of the XO?
・クアンタ・コンピュータ（台湾）

How will this initiative be structured?
・デラウェア拠点のNPO、OLPCが発展
・MITメディアラボ出身者に固められる
・協力：AMD、eBay,Google,News Corporation,RedHatなど

デザイン
・機能的
・見つけやすい→闇マーケットに流れにくい

詳細な特徴
・教科書サイズ
・トランスフォームする特徴→様々な使い道
・特定有害物質使用制限指令（EU）に完全対応
・ハードディスクを積まない→壊れにくい
・ワイヤレス機能は普通のPC以上
・5年は故障しない設計

仕様
Core electronics
• CPU: x86-compatible processor with 64KB each L1 I and D cache; at least 128KB L2 cache; AMD Geode LX-

700@0.8W (datasheet);
• CPU clock speed: 433 Mhz;
• ISA compatibility: Support for both the MMX and 3DNow! x86 instruction-set extensions; Athlon instruction

set (including MMX and 3DNow! Enhanced) with additional Geode-specific instructions;
• Companion chips: PCI and memory interface integrated with CPU; North Bridge: PCI and Memory Interface

integrated with Geode CPU; AMD CS5536 South Bridge (datasheet);
• Graphics controller: Integrated with Geode CPU; unified memory architecture;
• Embedded controller: ENE KB3700 or ENE KB3700B;
• DRAM memory: 256 MiB dynamic RAM;
• Data rate: Dual ― DDR333 ― 166 Mhz;
• 1024KB SPI-interface flash ROM;
• Mass storage: 1024 MiB SLC NAND flash, high-speed flash controller;
• Drives: No rotating media;
• CAFE ASIC (Camera, Flash Enabler chip, provides high-performance Camera, NAND FLASH and SD interfaces);

Marvell 88ALP01: (CAFE specification).
Display
• Liquid-crystal display: 7.5” Dual-mode TFT display;
• Viewing area: 152.4mm × 114.3mm;
• Resolution: 1200 (H) × 900 (V) resolution (200 DPI);
• Monochrome display: High-resolution, reflective sunlight-readable monochrome mode; Color display: Standard-

resolution, Quincunx-sampled, transmissive color mode;
• LCD power consumption: 0.1 Watt with backlight off; 0.2–1.0 Watt with backlight on;
• The display-controller chip (DCON) with memory that enables the display to remain live with the processor

suspended; the display and this chip are the basis of our extremely low power architecture; the display controller

chip also enables de-swizzling and anti-aliasing in color mode.
Integrated peripherals
• Keyboard: 80+ keys, 1.0mm stroke; sealed rubber-membrane key-switch assembly;
• Keyboard layout details;
• Keyboard layout pictures: international, Thai, Arabic, Spanish, Portuguese, West African, Urdu, Mongolian,

Cyrillic, Amharic;
• Gamepad: Two sets of four-direction cursor-control keys;
• Touchpad: Dual capacitance/resistive touchpad; supports written-input mode; ALPS Electric Dual

capacitive/resistive touchpad;
• Audio: AC97-compatible audio audio subsystem; internal stereo speakers and amplifier; internal monophonic

microphone; jacks for external headphones and microphone; Analog Devices AD1888 and Analog Devices SSM2211 for audio

amplification;
• Wireless networking: Integrated 802.11b/g (2.4GHz) interface; 802.11s (Mesh) networking supported; dual

adjustable, rotating coaxial antennas; supports diversity reception; capable of mesh operation when CPU is powered

down; Marvell Libertas 88W8388 controller and 88W8015 radio;
• Status indicators: Power, battery, WiFi (2); visible when lid is open or closed; microphone in-use and

camera in-use visible when lid is open;
• Video camera: integrated color vision camera; 640×480 resolution at 30FPS; Omnivision OV7670.
External connectors
• DC power: 6mm (1.65mm center pin) connector; 11 to 18 V input usable, –32 to 40 V input tolerated; power

draw limited to 15 W;
• Headphone output: Standard 3.5mm 3-pin switched stereo audio jack;
• Microphone input: Standard 3.5mm 2-pin switched mono microphone jack; selectable 2V DC bias; selectable

sensor-input mode (DC or AC coupled);
• USB: Three Type-A USB-2.0 connectors; up to 1A power supplied (total);
• Flash expansion: MMC/SD Card slot.
Battery
• Pack type: 2 or 4 cells LiFePO4; or 5 cells NiMH, approximately 6V series configuration;
• Capacity: 22.8 Watt-hours (LiFePO4); 16.5 Watt-hours (NiMH);
• Fully-enclosed “hard” case; user removable;
• Electronics integrated with pack provide:
• Identification;
• Battery charge and capacity information;
• Thermal and over-current sensors along with cutoff switch to protect battery;
• Minimum 2,000 charge/discharge cycles (to 50% capacity of new);
• Power management will be critical.
BIOS/loader
• Open Firmware used to load the operating system.
Environmental specifications
• Temperature: UL certification planned to 45C [as of Q32007], pending 50C certification in mid-2008;
• Humidity: UL certification planned to IP42 (perhaps higher) when closed, the unit should seal well enough

that children walking to and from school need not fear rainstorms and dust;
• Maximum altitude: –15m to 3048m (14.7 to 10.1 PSIA) (operating), –15m to 12192m (14.7 to 4.4 PSIA) (non-

operating);
• Shock 125g, 2ms, half-sine (operating) 200g, 2ms, half-sine (non-operating);
• Random vibration: 0.75g zero-to-peak, 10Hz to 500Hz, 0.25 oct/min sweep rate (operating); 1.5g zero-to-peak,

10Hz to 500Hz, 0.5 oct/min sweep rate (non-operating);
• 2mm plastic walls (1.3mm is typical for most systems).
Regulatory requirements
• The usual US and EU EMI/EMC (Electromagnetic Interference and Compatibility) requirements will be met;
• The laptop meets IEC 60950-1, EN 60950-1, and CSA/UL 60950-1 specifications. It also complies with UL 1310

and UL 498. In order to guarantee the safety of children using the laptop, it also passes ASTM F 963;
• The external power adapter complies with IEC, EN, and CSA/UL 60950-1;
• The removable battery pack complies with IEC, EN, and CSA/UL 60950-1 and UL 2054;
• RoHS (Restriction of Hazardous Substances Directive – EU) compliant

Benefits
・コンピュータリテラシーにはフォーカスしない、副産物としての位置づけ
・ワードやエクセルなども同様
・ラーニングが目的

インターフェイス
・子供専用のインターフェイスが必要
　　・共同作業に特化

Activities
・ネットワーキングと表現とジャーナル（ファイルのやり方）が特徴

お金
・購入の場合
　　・219ドル（LDC,パートナー国）
　　・259ドル（それ以外）
・199ドルは支援があるためできている