OLPC XO - Knowledge

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as the OLPC XO-1 would be 693 × 520. Unlike a standard RGB LCD, resolution of the XO-1 display varies with angle. Resolution is greatest from upper-right to lower left, and lowest from upper-left to lower-right. Images which approach or exceed this resolution will lose detail and gain color artifacts. The display gains resolution when in bright light; this comes at the expense of color (as the backlight is overpowered) and color resolution can never reach the full 200 dpi sharpness of grayscale mode because of the blur which is applied to images in color mode.

1324: 131: 1146:"Mode" change occurs by varying the relative amounts backlight and ambient light. With more backlight, a higher chrominance is available and a color image display is seen. As ambient light levels, such as sunlight, exceed the backlight, a grayscale display is seen; this can be useful when reading e-books for an extended time in bright light such as sunlight. The backlight brightness can also be adjusted to vary the level of color seen in the display and to conserve battery power. 959: 1456:, according to Negroponte. The data rate should be sufficient for asynchronous network applications (such as email) to communicate outside the cloud; interactive uses, such as web browsing, or high-bandwidth applications, such as video streaming should be possible inside the cloud. The IP assignment for the meshed network is intended to be automatically configured, so no server administrator or an administration of IP addresses is needed. 227: 1016: 951: 294: 1540: 1227: 943: 1558: 1546: 1235: 1552: 1373: 170: 1004: 1512: 36: 77: 4727: 991: 1154:

artifacts caused by this pixel geometry, the color component of the image is blurred by the display controller as the image is sent to the screen. Despite the color blurring, the display still has high resolution for its physical size; normal displays as of February 2007 put about 588(H) × 441(V) to 882(H) × 662(V) pixels in this amount of physical area and support

1358: 1696: 983: 775: 651: 2068: 1884: 1173: 897: 2082:. "There seems to be a common fallacy among programmers that using memory is good: on current hardware it is often much faster to recompute values than to have to reference memory to get a precomputed value. A full cache miss can be hundreds of cycles, and hundreds of times the power use of an instruction that hits in the first level cache." 732:, for outright donations and for a "Give 1 Get 1" offer valid (but only to the United States, its territories, and Canadian addresses) from November 12, 2007 until December 31, 2007. For each computer purchased at a cost of $ 399, an XO is also sent to a child in a developing nation. OLPC again restarted the G1G1 program through 2176:, which is the idea that, if they had the tools, the kids would largely figure out how to do things on their own. Others wanted children to learn the Microsoft Windows operating system, rather than OLPC's lightweight Linux derivative, on the belief that the children would use Microsoft Windows in their careers. Intel's 2133:, was publicly introduced in February 2007. No passwords will be required for ordinary use of the machine. Programs are assigned certain bundles of rights at install time which govern their access to resources; users can later add more rights. Optionally, the laptops can be configured to request leases from a 2194:

laptop", but it originally cost $ 130 for a bare-bones laptop, and then the price rose to $ 180 in the next revision. The solid-state alternative to a hard drive was sturdy, which meant that the laptop could be dropped with a lower risk of breaking—although more laptops were broken than expected—but

2093:, chair of the Wikimedia Foundation, said that "OLPC's mission goes hand in hand with our goal of distributing encyclopedic knowledge, free of charge, to every person in the world. Not everybody in the world has access to a broadband connection." Negroponte had earlier suggested he would like to see 1158:

for slightly higher perceived resolution. A Philips Research study measured the XO-1 display's perceived color resolution as effectively 984(H) × 738(V). A conventional liquid crystal display with the same number of green pixels (green carries most brightness or luminance information for human eyes)

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but presents an iconic view of programs and documents and a map-like view of nearby connected users. The current active program is displayed in full-screen mode. Much of the core Sugar interface uses icons, bypassing localization issues. Sugar is also defined as having no folders present in the UI.

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for liquid crystal computer displays, in which each pixel contains three tall thin rectangles of the primary colors. Instead, the XO-1 display provides one color for each pixel. The colors align along diagonals that run from upper-right to lower left (see diagram on the right). To reduce the color

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had suddenly developed an interest in the XO project and wanted the formerly open source effort to run Windows. Negroponte agreed to provide engineer assistance to Microsoft to facilitate their efforts. During this time, the project mission statement changed to remove mentions of "open source". A

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GlidePoint touchpad, which was in the central third of the sensor and could be used with a finger. The full width was a resistive sensor which, though never supported by software, was intended to be used with a stylus. This unusual feature was eliminated in the CL1A hardware revision because it

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In e-book mode (XO 1.5), all hardware sub-systems except the monochrome dual-touch display are powered down. When the user moves to a different page, the other systems wake up, render the new page on the display, and then go back to sleep. Power use in this e-book mode is estimated to be 0.3 to

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is the chief designer of the present XO shell. The shell of the laptop is resistant to dirt and moisture, and is constructed with 2 mm thick plastic (50% thicker than typical laptops). It contains a pivoting, reversible display, movable rubber Wi-Fi antennas, and a sealed rubber-membrane

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indicated that it could ship five million to ten million units that year because seven nations had committed to buy the XO-1 for their schoolchildren: Argentina, Brazil, Libya, Nigeria, Rwanda, Thailand, and Uruguay. Quanta plans to offer machines very similar to the XO-1 on the open market.

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External manual power options included a clamp-on crank generator similar to the original built-in one (see photo in the Gallery, below), but they generated 1/4 the power initially hoped, and less than a thousand were produced. A pull-string generator was also designed by Potenco but never

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More than twenty different keyboards have been laid out, to suit local needs to match the standard keyboard for the country in which a laptop is intended. Around half of these have been manufactured for prototype machines. There are parts of the world which do not have a standard keyboard

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in March 2007. The free and open source SimCity plans were confirmed at the same conference by SJ Klein, director of content for the OLPC, who also asked game developers to create "frameworks and scripting environments—tools with which children themselves could create their own content."

674:, Tunisia. The device shown was a rough prototype using a standard development board. Negroponte estimated that the screen alone required three more months of development. The first working prototype was demonstrated at the project's Country Task Force Meeting on May 23, 2006. 1083:. Jepsen developed a new display for the first-generation OLPC laptop, inspired by the design of small LCDs used in portable DVD players, which she estimated would cost about $ 35. In the OLPC XO-1, the screen is estimated to be the second most costly component, after the 1118:. This innovation results in a much brighter display for a given amount of backlight illumination: while the color filters in a regular display typically absorb 85% of the light that hits them, this display absorbs little of that light. Most LCD screens at the time used 1393:

8388 wireless chip, chosen due to its ability to autonomously forward packets in the mesh even if the CPU is powered off. When connected in a mesh, it is run at a low bitrate (2 Mbit/s) to minimize power use. Despite the wireless chip's minimalism, it supports

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Approximately 400 developer boards (Alpha-1) were distributed in mid-2006; 875 working prototypes (Beta 1) were delivered in late 2006; 2400 Beta-2 machines were distributed at the end of February 2007; full-scale production started November 6, 2007.

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Some critics of the program would have preferred less money being spent on technology and more money being spent on clean water and "real schools". Some supporters worried about the lack of plans for teaching students. The program was based on

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of power consumed during normal use, far less than the 10 W to 45 W of conventional laptops. With build 656, power use is between 5 and 8 watts measured on G1G1 laptop. Future software builds are expected to meet the 2-watt target.

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maximum rather than the usual higher speed 5.5 Mbit/s or 11 Mbit/s to minimize power use. The conventional IEEE 802.11b system only handles traffic within a local cloud of wireless devices in a manner similar to an

1310:. 10 batteries at once can be charged from the school building power in the XO multi-battery charger. The low power use, combined with these power options are useful in many countries that lack a power infrastructure. 765:

In 2008 the XO was awarded London's Design Museum "Design of the Year", plus two gold, one silver, and one bronze award at the Industrial Design Society of America's International Design Excellence Awards (IDEAs).

688:, a professor emeritus at MIT who is one of the initiative's founders, the designers wanted an operating system that can be tinkered with: "We declined because it's not open source." Therefore, Linux was chosen. 5242: 2822: 1861:

The XO 4 is a refresh of the XO 1 to 1.75 with a later ARM CPU and an optional touch screen. This model will not be available for consumer sales. There is a mini HDMI port to allow connecting to a display.

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188 in 2006, with a stated goal to reach the $ 100 mark in 2008 and the 50-dollar mark by 2010. When offered for sale in the Give One Get One campaigns of Q4 2006 and Q4 2007, the laptop was sold at $ 199.

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Water-resistant membrane keyboard, customized to the locale in which it will be distributed. The multiplication and division symbols are included. The keyboard is designed for the small hands of children.

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backlights which were fragile, difficult or impossible to repair, required a high voltage power supply, were relatively power-hungry, and accounted for 50% of the screens' cost (sometimes 60%). The

1869:, rather than OLPC, and based on the Android platform whereas all previous XO models were based on Sugar running on top of Fedora. It is commercially available and has been used in OLPC projects. 2865: 1602:

representing their language. As Negroponte states this is "because there's no real commercial interest in making a keyboard". One example of where the OLPC has bridged this gap is in creating an

1114:. The grating splits the light from the white backlight into a spectrum. The red, green, and blue components are diffracted into the correct positions to illuminate the corresponding pixel with 1491:, the producer of the wireless chip set and owner of the current meshing protocol software, will make the firmware open source is still an unanswered question. As of 2011, it has not done so. 1132:

The remainder of the LCD uses extant display technology and can be made using extant manufacturing equipment. Even the masks can be made using combinations of extant materials and processes.

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backlight, the display shows a color image composed of both RGB and grayscale information. When lit primarily from the front by ambient light, for example from the sun, the display shows a

633:, to allow many machines to share Internet access as long as at least one of them could connect to an access point, was initially announced, but quickly abandoned after proving unreliable. 2962: 2164:

The hand-crank system for powering the laptop was abandoned by designers shortly after it was announced, and the "mesh" internet-sharing approach performed poorly and was then dropped.

1448:—either directly or indirectly—then all computers in the cloud are able to share that access. The data rate across this network will not be high; however, similar networks, such as the 1858:

was scheduled for release in late 2012. It was canceled in favor of the XO-4. It featured one solid color multi-touch screen design, and a solar panel in the cover or carrying case.

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The first XO prototype, displayed in 2005, had a built-in hand-crank generator for charging the battery. The XO-1 beta, released in early 2007, used a separate hand-crank generator.

4273: 3769: 1843:, it had an elegant, lighter, folding dual touch-screen design. The hardware would have been open-source and sold by various manufacturers. A choice of operating system ( 3133: 3804:"One Laptop Per Child Includes Knowledge on $ 100 Laptops; Subset of online encyclopedia to be available in static version to children and teachers in developing world" 5272: 2826: 1425:

network. Each node transmits and receives its own data, but it does not route packets between two nodes that cannot communicate directly. The OLPC laptop will use

1011:(LCD). The images show 1×1 mm of each screen. A typical LCD addresses groups of 3 locations as pixels. The OLPC XO LCD addresses each location as a separate pixel 2695: 1290:

External power options include 110–240 Volt AC and input from an external solar panel. Solar is the predominant alternate power source for schools using XOs.

2801: 2873: 2078:, responsible for the laptops' system software, has called for a re-education of programmers, saying that many applications use too much memory or even 584:

were designed for sale to government-education systems which then would give each primary school child their own laptop. Pricing was set to start at US

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Countries are expected to remove and add software to best adapt the laptop to the local laws and educational needs. As supplied by OLPC, all of the

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is still untested under the OLPC's current configuration and hardware environment. Although one goal of the laptop is that all of its software be

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In keeping with its goals of robustness and low power use, the design of the laptop intentionally omits all motor-driven moving parts; it has no

806:. Along with a standard plug-in power supply, human and solar power sources are available, allowing operation far from a commercial power grid. 2302: 1416:

support will be provided using a Wi-Fi "Extended Range" chip set. Jepsen has said the wireless chip set will be run at a low bit rate, 2

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screen installed in an OLPC XO laptop operating in reflective mode, note that the screen is in grey scale mode and is not retro illuminated

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Tom Sanders and Paul Briggs (December 5, 2006), Microsoft looking to run Windows on OLPC, VNUnet. Vnunet.com. Retrieved on 2007-12-24

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Reflective (backlight off) monochrome mode for low-power use in sunlight. This mode provides very sharp images for high-quality text

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that is intended to help young children collaborate. The XO-1 includes a video camera, a microphone, long-range Wi-Fi, and a hybrid

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project originally stated that a consumer version of the XO laptop was not planned. In 2007, the project established a website,

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October 27, 2006 Article about how the project's hardware constraints will lead to better apps and kludge-removal for everyone

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suffered from erratic pointer motion. Alps Electronics provided both the capacitive and resistive components of the mousepad.

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0.8 W. The XO 2.0 is planned to consume even less power than earlier versions, less than 1.0 W in full color mode.

479: 179: 2122: 2067: 1907:. All core software is intended to be localized to the languages of the target countries. The underlying software includes: 3093: 5257: 4856: 4042: 2785: 2045: 1981: 1444:

fashion with other laptops it can hear, forwarding packets across the cloud. If a computer in the cloud has access to the

2575: 5247: 3947:, SPIE; The International Society for Optical Engineering. The Optics, Photonics, Fibers, and Lasers Resource, July 2006 3209: 2001: 1933: 546: 475: 2699: 4299: 3790: 3786: 2114: 1912: 1878: 351: 4055: 3317: 2303:"Netbooks: Credit OLPC, not just Asus – Nate Lanxon, MP3 & Digital Music Editor – Technology Blog at CNET.co.uk" 5217: 1333: 967: 140: 5252: 4824: 4433: 4148: 2108: 2053: 1700: 1068: 787: 786:

The XO-1 is designed to be low-cost, small, durable, and efficient. It is shipped with a slimmed-down version of

716:, the project's contract manufacturer, said in February 2007 that it had confirmed orders for one million units. 239: 2919: 2655: 5267: 5075: 5040: 2869: 1488: 1390: 1366: 1191: 1080: 883:

generator was part of the notebook in the original design; however, it is now an optional clamp-on peripheral.

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computer intended to be distributed to children in developing countries around the world, to provide them with

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The XO 2, previously scheduled for release in 2010, was canceled in favor of XO 3. With a price target

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The pre-8.20 software versions were criticized for bad wireless connectivity and other minor issues.

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Power options include batteries, solar power panels, and human-powered generators, which make the XO

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242 mm × 228 mm × 32 mm (9.5 in × 9.0 in × 1.3 in)

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Minimal production cost, with a target of $ 100 per laptop for production runs of millions of units

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pack, 3000 mAh minimum 3050 mAh typical 80% usable, charge at 0...45 °C (deprecated in 2009)

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Mock-up of the "neighborhood view" showing children collaborating on various tasks, within the

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and to stop working when the leases expire; this is designed as a theft-prevention mechanism.

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announced that static copies of selected Knowledge articles would be included on the laptops.

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ABC. (2008, March 22). The Science Show: One Laptop Per Child. Retrieved May 7, 2008, from

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In color mode (when lit primarily from the rear), the display does not use the common RGB

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pack, 3100 mAh minimum 3150 mAh typical 100% usable, charge at −10...50 °C

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Please help update this article to reflect recent events or newly available information.

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Please help update this article to reflect recent events or newly available information.

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The XO 1.75 began development in 2010, with full production starting in February 2012.

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pack, 2800 mAh minimum 2900 mAh typical 100% usable, charge at 0...60 °C

1243: 1150: 697: 685: 460: 4284: 3610: 2510: 1226: 942: 5231: 5180: 5024: 4918: 4914: 4906: 4902: 4894: 4809: 4804: 4677: 4621: 4483: 4419: 4240: 4178: 3969: 3916: 3873:"EA Donates Original City-Building Game, SIMCITY, To One Laptop Per Child Initiative" 2468: 2460: 2358: 2016: 1929: 1900: 1820: 1758: 1679: 1140: 1076: 1039: 837: 755:

began a project to purchase large numbers of XO computers for use by schoolchildren.

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key, which frees up keyboard space for new keys such as a future "view source" key.

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codec, with jacks for external stereo speakers and microphones, Line-out, and Mic-in

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GDC: SJ Klein Asks For Serious OLPC Content, Gamasutra Industry News, 6 March 2007

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It may require cleanup to comply with Knowledge's content policies, particularly

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Four "Game Buttons" (functionally PgUp, PgDn, Home, and End) modeled after the

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interface is needed due to the lack of hard drive. Storage is via an internal

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is currently closed source. While there are open-source alternatives such as

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The latest version of the OLPC XO is the XO-4 Touch, was introduced in 2012.

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battery: 1.45 kg (3.2 lb); NiMH battery: 1.58 kg (3.5 lb)

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Built-in color camera, to the right of the display, VGA resolution (640×480)

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is the costliest component in most laptops. In April 2005, Negroponte hired

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Doing it for the kids, man: Children's laptop inspires open source projects

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Doing it for the kids, man: Children's laptop inspires open source projects

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OLPC (2008, April 21). OLPC Amharic Keyboard. Retrieved May 7, 2008, from

2983:"A conversation with Mary Lou Jepsen", ACM Queue journal, November 1, 2007 1704: 1695: 1075:, who was interviewing to join the Media Arts and Sciences faculty at the 982: 774: 5205: 5170: 5143: 5116: 5060: 5015: 4958: 4950: 4941: 4924: 4753: 4468: 4463: 4448: 4208: 4193: 3956: 3721: 3233: 2130: 2020: 1816: 1798: 1794:

Marvell Armada 610 at 0.8 watts, with integrated graphics controller

1754: 1744: 1675: 1664: 1621: 1607: 1587: 1564: 1479:, none of these options is yet available running at the data-link layer ( 1453: 1445: 1422: 1129:(LED) backlight in the XO-1 is easily replaceable, rugged, and low-cost. 1110:. This grating pattern is stamped using the same technology used to make 1102:. Instead of using subtractive color filters, the display uses a plastic 1095: 1023: 907: 803: 423: 390: 336: 17: 3658: 3276: 1452:

Motoman project have supported email services to 1000 schoolchildren in

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price target in the United States includes two computers, one donated.

1603: 1480: 1386: 1088: 869: 865: 624: 452: 408: 3736:. The OLPC Wiki. One Laptop Per Child. Retrieved on December 25, 2007. 3724:. The OLPC Wiki. One Laptop Per Child. Retrieved on December 25, 2007. 3175: 2107:

announced that he is creating a free and open source port of the game

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A "cool" look, implying innovative styling in its physical appearance

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in November 2008, but has since stopped as of December 2008 or 2009.

549:, and opportunities to "explore, experiment and express themselves" ( 542: 431: 3579: 3160:"Comparing the Effective Resolution of Various RGB Subpixel Layouts" 2425:"Vision: Children in the developing world are inadequately educated" 1483:) on the Wi-Fi subsystem's co-processor; this is critical to OLPC's 1143:(black and white) image composed of just the grayscale information. 3746: 3482: 3296: 3034: 2768: 1688:(in 2006 the specifications called for 512 MB of flash memory) 1094:

Jepsen has described the removal of the filters that color the RGB

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XO 1.75 developmental version for XO-3 has an optional touch screen

608:(HDD), and come with a pre-installed operating system derived from 4814: 4783: 4748: 4611: 4606: 4534: 4364: 4173: 3255: 2654:

Microsoft Windows XP on the Children's Machine XO?! (5 Dec 2006).

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http://wiki.laptop.org/images/b/b0/KGDMFA001-non-confidential.pdf

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Beneath the keyboard was a large area that resembled a very wide

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The first early prototype was unveiled by the project's founder

393: 378: 4288: 4090: 3094:"One Laptop Per Child – a Preview of the Hundred Dollar Laptop" 1042:) that uses 0.1 to 1.0 W depending on mode. The two modes are: 585: 1891:. By clicking on the icon, communication by Wi-Fi is activated 1734: 1654: 1594: 1317: 1166: 1111: 890: 873: 853: 220: 163: 124: 70: 29: 3522:"OLPC XO 1.75 laptop is faster with ARM chip than x86 models" 2332:"Give one, get one: '$ 100 laptop' project to sell to public" 2195:

it was costly, so the machines had limited storage capacity.

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LX-700 at 0.8 watts, with integrated graphics controller

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The design received the Community category award of the 2007

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Klompenhouwer, Michiel; Langendijk, Erno H.A. (2008-05-27).

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color mode, with an alternance of red, green and blue pixels

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may be in need of reorganization to comply with Knowledge's

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Average battery life 3–5 hours (varies with active suspend)

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On May 20, 2008, OLPC announced the next generation of XO,

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Information and communication technologies for development

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Whenever the laptop is powered on it can participate in a

4066:– Web video of the first laptop prototype, by Andy Carvin 3134:"Higher resolution than we thought: the XO laptop screen" 3033:. Mary Lou Jepsen, Ph.D. December 3, 2007. Archived from 2097:

on the laptop. Wales feels that Knowledge is one of the "

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Activity, home, friends and neighborhood software levels

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Negroponte has demanded that the keyboard not contain a

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The first-generation OLPC laptops have a novel low-cost

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The laptop design specification goals are about 2

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free of charge for use in the laptop, but according to

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First video of a working "One Laptop Per Child" laptop

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or Linux) was intended outside the United States. Its

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at 0.8 watts, with integrated graphics controller

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Production version (4th generation): functional survey

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has listed the design goals of the device as follows:

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A major contributor to this article appears to have a

3776:, Michael Gartenberg, Jupiter Research, 27 April 2007 3075:. American Association for the Advancement of Science 2656:"Microsoft Windows XP on the Children's Machine XO?!" 2447:

Huppatz, D.J. (2011). "Roland Barthes, Mythologies".

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and lenses on the rear of the LCD to illuminate each

1007:

Comparison of the XO-1 display (left) with a typical

4079: 514: 5193: 5084: 5033: 4870: 4792: 4741: 4734: 4635: 4594: 4543: 4497: 4373: 4332: 4323: 3987:– demonstration of the first working prototype, by 3010:"Negroponte: Slimmer Linux needed for $ 100 laptop" 860:drive, or fan (the device is passively cooled). No 557:, a co-founder of MIT's Media Lab, and designed by 509: 497: 489: 471: 445: 437: 415: 399: 385: 368: 345: 331: 323: 313: 303: 4274:Comparison of netbook-oriented Linux distributions 3964:$ 100-laptop created for world's poorest countries 2866:"Amazon launches OLPC 'Give 1 Get 1' laptop drive" 2357: 1988:used to develop Sugar "Activities". Several other 4060:, presentation of the userinterface – Videostream 3096:. Worldchanging. November 3, 2005. Archived from 1336:may be compromised due to out-of-date information 143:may be compromised due to out-of-date information 3894:"Criticism and Rebuttal on Sugar User Interface" 2744:"For $ 150, Third-World laptop stirs big debate" 1624:. The capacitive portion of the mousepad was an 1135:When lit primarily from the rear with the white 3341: 3339: 2784:. Itworld.com. Retrieved on December 24, 2007. 1926:(although not normally operating in that mode). 1376:An "active antenna" for extending network reach 1031:1200 × 900 7.5 inch (19 cm) diagonal 814:Minimal power use, with a design target of 2–3 743:which was thereafter cancelled in favor of the 691:In 2006, there was a major controversy because 2737: 2735: 2733: 2731: 1530:-control pad; four directional keys plus Enter 1381:Wireless networking using an "Extended Range" 97:to make improvements to the overall structure. 4300: 4102: 3411: 3409: 2597: 2595: 2129:The laptop's security architecture, known as 2059:. This interface is not based on the typical 1238:Selfmade laptop charging station in classroom 1098:as the critical design innovation in the new 8: 4064:The Best Laptops under 400: an Up-Close Look 3994:"Hand-cranked computers: Is this a wind-up?" 3208:Livingstone, Margaret; Hubel, David (2002). 2696:"XP on XO: Negroponte has lost his bearings" 2168:of Microsoft criticized the screen quality. 1194:. There might be a discussion about this on 441:built-in video camera (640×480; 30 FPS) 286: 4018:"Laptop with a mission widens its audience" 3346:Keyboard layouts for over a dozen languages 2845: 2843: 2771:. NYTeknik. Retrieved on December 24, 2007. 64:Learn how and when to remove these messages 4738: 4329: 4307: 4293: 4285: 4109: 4095: 4087: 3762: 3760: 3477: 3475: 3003: 3001: 2920:"Low-Price Laptops Tested at City Schools" 2641:"The $ 100 Laptop Moves Closer to Reality" 1865:The XO Tablet was designed by third-party 1781:Fewer physical parts, 40% lower power use. 662:and then-United Nations Secretary-General 403:dual-mode (backlit color, direct-sunlight 292: 285: 3441:. The OLPC Wiki. Retrieved on 2007-12-24. 3391: 3389: 2485:Nicholas Negroponte: One Laptop per Child 1214:Learn how and when to remove this message 274:Learn how and when to remove this message 209:Learn how and when to remove this message 113:Learn how and when to remove this message 4489:GNU/Linux Open Hardware PowerPC notebook 3164:SID Symposium Digest of Technical Papers 2802:"OLPC manufacturer to sell $ 200 laptop" 2782:One million OLPC laptop orders confirmed 2232:Computer technology for developing areas 1694: 1002: 949: 2293: 1757:(1 MB) flash ROM with open-source 1711:The XO 1.5 was released in early 2010. 1567:for mouse control and handwriting input 668:World Summit on the Information Society 565:company. The laptop is manufactured by 5273:Computer-related introductions in 2005 2780:IDG News Service (December 15, 2007), 2482:Negroponte, Nicholas (February 2006). 2386:"Negropontism: A CM1 to 2B1 Backstory" 407:) 19.1 cm (7.5 in) diagonal 3211:Vision and Art: The Biology of Seeing 2639:Stecklow, Steve (November 14, 2005). 2569: 2567: 2565: 2563: 2561: 2559: 2557: 2555: 2553: 2551: 2044:graphical user interface, written in 872:slot, although Universal Serial Bus ( 753:New York City Department of Education 7: 3747:"Interview with Jim Gettys, part II" 3113:"Our screen, described by its parts" 2511:"One Laptop per Child: Ways to Give" 2442: 2440: 2213:Free and open-source software portal 2180:used Microsoft Windows and sold for 1640:The XO-1 was released in late 2007. 3892:Bender, Walter (16 December 2008). 3452:"CL1 Hardware Design Specification" 3068:Negroponte, Nicholas (March 2008). 2698:. ZDNet. 2008-05-16. Archived from 4917:E2 / E6 / E8 / EM30 / EM35 / Z6 / 3793:, manipulates an on-screen turtle. 3403:. Retrieved on December 25, 2007. 3316:Brooke, James (January 26, 2004). 2851:"One Laptop Per Child – XO Giving" 2742:Markoff, John (30 November 2006). 2722:"'$ 100 laptop' platform moves on" 2720:Fildess, Jonathan (May 16, 2008). 2678:"'$ 100 Laptop' Platform Moves On" 2627:UN debut for $ 100 laptop for poor 1819:(1 MB) flash ROM with open-source 1678:(1 MB) flash ROM with open-source 654:OLPC XO-1 original design proposal 25: 4602:Buffalo LinkStation / TeraStation 2676:Fildes, Jonathan (May 16, 2008). 2399:Ward, Mark (September 27, 2007). 2113:to the OLPC with the blessing of 1990:interpreted programming languages 986:Rotatable display cover of the XO 45:This article has multiple issues. 4725: 4030:"Make your own $ 100 laptop...?" 3599:XO 2.0. Popular Science Feb 2008 3483:"Interview: Jim Gettys (Part I)" 3214:. Harry N. Abrams. p. 208. 3132:Mary Lou Jepsen (May 27, 2008). 3008:Stephen Shankland (2006-04-04). 2769:100-dollarsdatorn masstillverkas 2574:Robertson, Adi (16 April 2018). 2461:10.2752/175470810X12863771378833 2205: 1691:Average battery life three hours 1556: 1550: 1544: 1538: 1322: 1171: 978:with the actual operating system 895: 225: 189:. Please discuss further on the 168: 129: 75: 34: 3919:, Portal 180, October 14, 2009 2825:. Business Wire. Archived from 2026:Audio and video player software 1835:Average battery life 5–10 hours 852:(CD) or Digital Versatile Disc 53:or discuss these issues on the 3952:$ 100 laptop production begins 3810:(Press release). 4 April 2006. 3318:"Technology; E-Mail on Wheels" 2922:. The New York Sun. 2008-09-30 2896:"$ 100 Laptop Gets Redesigned" 2767:Jan Melin (November 7, 2007). 2190:The project was known as "the 1747:of Dual (DDR266) 133 MHz 1667:of Dual (DDR266) 133 MHz 1440:with each node operating in a 910:format but may read better as 696:number of developers, such as 1: 3635:"XO Tablet Technical Details" 3395:Don Marti (October 27, 2006), 1438:mobile ad hoc network (MANET) 1405:Dual adjustable antennas for 666:on November 16, 2005, at the 3767:OLPC – Hardware and Software 3501:"Hardware specification 1.5" 2894:Talbot, David (2008-05-21). 2804:. Arstechnica. 29 March 2007 1964:Email through the web-based 3787:visual programming language 3659:"Introducing the XO tablet" 2864:Nystedt, Dan (2008-11-17). 2853:. OLPC project. 2007-09-23. 2123:Game Developer's Conference 1879:Sugar (desktop environment) 1467:, the source code for this 1079:in September 2008, as OLPC 553:). The XO was developed by 238:to comply with Knowledge's 5289: 4967:Samsung Vodafone 360 H1 / 4038:magazine, December 2, 2005 3989:Silicon Valley Sleuth blog 3382:OLPC:OLPC Amharic Keyboard 2015:with digital instruments: 1932:, written in a variant of 1922:, with students receiving 1876: 1784:Power option: solar panel. 1724:Power option: solar panel. 1644:Power option: solar panel. 1230:XO-1 multi-battery charger 643: 5214: 4779:Roku Digital Video Player 4723: 4259: 4124: 3944:$ 100 Laptop Nears Launch 3926:October 18, 2009, at the 3485:. LWN.net. June 28, 2006. 2788:January 13, 2008, at the 1069:electronic visual display 291: 4007:"Hardware Specification" 2629:. BBC, 17 November 2005. 2356:Papert, Seymour (1993). 1911:A pared-down version of 1489:Marvell Technology Group 1367:wireless mesh networking 1081:Chief Technology Officer 840:provided with the laptop 621:Mobile ad hoc networking 617:graphical user interface 551:constructionist learning 251:may contain suggestions. 236:may need to be rewritten 3822:"User talk:Jimbo Wales" 3615:tabletsforkidsguide.com 3186:. SID08. Archived from 2085:On August 4, 2006, the 1275:Four-cell rechargeable 1085:central processing unit 919:converting this section 868:slot. There is also no 4264:Comparison of netbooks 3439:Hardware specification 3277:"One Laptop Per Child" 3070:"One laptop per child" 2643:. Wall Street Journal. 2537:. One Laptop per Child 2360:The Children's Machine 2227:Comparison of netbooks 2148:The XO-1 is nicknamed 2135:OLPC XS central server 2072: 1992:are included, such as 1899:on the laptop will be 1892: 1708: 1535:PlayStation Controller 1519: 1402:processor is included. 1396:Wi-Fi Protected Access 1377: 1369: 1308:self-powered equipment 1239: 1231: 1062:liquid crystal display 1027: 1012: 1009:liquid crystal display 995: 987: 979: 974:and interfaces over a 955: 947: 876:) ports are included. 783: 655: 485:removable battery pack 4571:Linksys WRT54G series 4317:Linux-powered devices 4269:Netbook manufacturers 3358:OLPC Keyboard layouts 3031:"Mary Lou Jepsen Bio" 2160:Reception and reviews 2152:in Uruguay after the 2070: 1886: 1829:(upgradable, microSD) 1767:(upgradable, microSD) 1698: 1515:Close-up of the OLPC 1514: 1431:wireless mesh network 1375: 1360: 1237: 1229: 1018: 1006: 993: 985: 961: 953: 945: 777: 653: 573:(OLPC), a non-profit 187:neutral point of view 5258:One Laptop per Child 5071:SNES Classic Edition 3808:Wikimedia Foundation 3459:One Laptop per Child 3252:"Potenco – Products" 3239:Margaret Livingstone 3100:on October 12, 2007. 3037:on January 24, 2005. 2607:OLPC Wiki.laptop.org 2338:. September 24, 2007 2087:Wikimedia Foundation 2040:The laptop uses the 1986:programming language 1718:Fewer physical parts 1684:1024 MB of SLC NAND 1264:2-cell rechargeable 1257:5-cell rechargeable 1184:confusing or unclear 1127:light-emitting diode 751:. In late 2008, the 726:One Laptop Per Child 646:One Laptop per Child 571:One Laptop per Child 5248:Linux-based devices 5056:NES Classic Edition 5051:Intellivision Amico 4002:, November 24, 2005 3973:, November 17, 2005 3917:La última ceibalita 3734:Software components 3566:"Xo 1.75 C2 - OLPC" 3520:Matthew Humphries. 3140:on October 11, 2008 2702:on November 4, 2010 2277:VIA pc-1 Initiative 2101:" for this device. 1984:2.5 is the primary 1825:4-8 GB of SLC NAND 1586:Audio based on the 1407:diversity reception 1192:clarify the section 1104:diffraction grating 660:Nicholas Negroponte 555:Nicholas Negroponte 547:access to knowledge 529:(formerly known as 288: 95:editing the article 4974:Samsung Wave S8500 4759:Hauppauge MediaMVP 4561:Buffalo AirStation 4236:Sony VAIO W series 4231:Sony VAIO M series 4149:Dell Inspiron Mini 4023:The New York Times 3840:"SimCity for OLPC" 3772:2007-10-12 at the 3611:"XO Tablet Review" 3323:The New York Times 3111:Jepsen, Mary Lou. 2748:The New York Times 2449:Design and Culture 2307:reviews.cnet.co.uk 2073: 1893: 1709: 1520: 1378: 1370: 1250:, maximum 15 1240: 1232: 1156:subpixel rendering 1028: 1013: 996: 994:XO-1 clamp charger 988: 980: 956: 948: 921:, if appropriate. 784: 656: 535:Children's Machine 5225: 5224: 5189: 5188: 5085:Handheld consoles 5066:Sega Genesis Mini 4820:Leapster Explorer 4721: 4720: 4708:Asus Tinker Board 4479:Skytone Alpha-400 4282: 4281: 4226:Skytone Alpha-400 4214:Samsung N130/N140 4184:HP Mini/Mini-Note 4026:, October 4, 2007 3176:10.1889/1.3069822 2947:, August 25, 2007 2900:Technology Review 2531:"OLPC's Software" 1787:CPU: 400 to 1000 1763:4 GB of SLC NAND 1727:CPU: 400 to 1000 1715:Via/x86 CPU 4.5 W 1450:store and forward 1355: 1354: 1224: 1223: 1216: 940: 939: 569:and developed by 523: 522: 298:An XO-1 prototype 284: 283: 276: 266: 265: 240:quality standards 219: 218: 211: 182:with its subject. 162: 161: 123: 122: 115: 88:layout guidelines 68: 16:(Redirected from 5280: 5253:Mobile computers 4739: 4729: 4520:LeapPad Explorer 4330: 4309: 4302: 4295: 4286: 4111: 4104: 4097: 4088: 4083: 4082: 4080:Official website 4052: 4050: 4049: 4014: 3930: 3922: 3914: 3908: 3907: 3905: 3904: 3889: 3883: 3882: 3880: 3879: 3865: 3859: 3854: 3848: 3847: 3836: 3830: 3829: 3818: 3812: 3811: 3800: 3794: 3785:Turtle Art is a 3783: 3777: 3764: 3755: 3754: 3743: 3737: 3731: 3725: 3719: 3713: 3712: 3710: 3708: 3697: 3691: 3690: 3688: 3686: 3676: 3670: 3669: 3667: 3665: 3655: 3649: 3648: 3646: 3645: 3631: 3625: 3624: 3622: 3621: 3607: 3601: 3596: 3590: 3589: 3587: 3586: 3576: 3570: 3569: 3562: 3556: 3555: 3553: 3552: 3538: 3532: 3531: 3529: 3528: 3517: 3511: 3510: 3508: 3507: 3493: 3487: 3486: 3479: 3470: 3469: 3467: 3466: 3456: 3448: 3442: 3436: 3430: 3425: 3419: 3413: 3404: 3393: 3384: 3378: 3372: 3367: 3361: 3355: 3349: 3343: 3334: 3333: 3331: 3330: 3313: 3307: 3306: 3304: 3303: 3293: 3287: 3286: 3284: 3283: 3273: 3267: 3266: 3264: 3263: 3254:. Archived from 3248: 3242: 3237: 3232:. Archived from 3205: 3199: 3198: 3196: 3195: 3155: 3149: 3148: 3146: 3145: 3136:. Archived from 3129: 3123: 3122: 3120: 3119: 3108: 3102: 3101: 3090: 3084: 3083: 3081: 3080: 3074: 3065: 3059: 3058: 3056: 3055: 3045: 3039: 3038: 3027: 3021: 3020: 3018: 3017: 3005: 2996: 2991: 2985: 2980: 2974: 2973: 2971: 2970: 2961:. Archived from 2955: 2949: 2948: 2937: 2931: 2930: 2928: 2927: 2916: 2910: 2909: 2907: 2906: 2891: 2885: 2884: 2882: 2881: 2872:. 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Whether 1485:power efficiency 1469:routing protocol 1350: 1347: 1341: 1334:factual accuracy 1326: 1325: 1318: 1219: 1212: 1208: 1205: 1199: 1175: 1174: 1167: 1123:fluorescent lamp 966:chipset runs an 954:XO-1 motherboard 935: 932: 926: 917:You can help by 899: 898: 891: 879:A built-in hand- 730:laptopgiving.org 541:) is a low cost 519: 516: 455:wireless LAN, 3 347:Operating system 296: 289: 279: 272: 261: 258: 252: 229: 221: 214: 207: 203: 200: 194: 180:close connection 172: 171: 164: 157: 154: 148: 141:factual accuracy 133: 132: 125: 118: 111: 107: 104: 98: 79: 78: 71: 60: 38: 37: 30: 21: 5288: 5287: 5283: 5282: 5281: 5279: 5278: 5277: 5268:Quanta Computer 5228: 5227: 5226: 5221: 5210: 5185: 5080: 5029: 4969:Vodafone 360 M1 4866: 4788: 4730: 4717: 4631: 4590: 4539: 4493: 4381:Acer Aspire One 4369: 4325: 4319: 4313: 4283: 4278: 4255: 4129:Acer Aspire One 4120: 4115: 4078: 4077: 4074: 4069: 4047: 4045: 4041: 4005: 3999:The Independent 3959:, July 22, 2007 3938: 3933: 3928:Wayback Machine 3920: 3915: 3911: 3902: 3900: 3891: 3890: 3886: 3877: 3875: 3869:Electronic Arts 3867: 3866: 3862: 3855: 3851: 3838: 3837: 3833: 3820: 3819: 3815: 3802: 3801: 3797: 3784: 3780: 3774:Wayback Machine 3765: 3758: 3753:. July 6, 2006. 3745: 3744: 3740: 3732: 3728: 3720: 3716: 3706: 3704: 3699: 3698: 3694: 3684: 3682: 3678: 3677: 3673: 3663: 3661: 3657: 3656: 3652: 3643: 3641: 3633: 3632: 3628: 3619: 3617: 3609: 3608: 3604: 3597: 3593: 3584: 3582: 3578: 3577: 3573: 3564: 3563: 3559: 3550: 3548: 3540: 3539: 3535: 3526: 3524: 3519: 3518: 3514: 3505: 3503: 3495: 3494: 3490: 3481: 3480: 3473: 3464: 3462: 3454: 3450: 3449: 3445: 3437: 3433: 3426: 3422: 3414: 3407: 3394: 3387: 3379: 3375: 3368: 3364: 3356: 3352: 3344: 3337: 3328: 3326: 3315: 3314: 3310: 3301: 3299: 3295: 3294: 3290: 3281: 3279: 3275: 3274: 3270: 3261: 3259: 3250: 3249: 3245: 3222: 3207: 3206: 3202: 3193: 3191: 3157: 3156: 3152: 3143: 3141: 3131: 3130: 3126: 3117: 3115: 3110: 3109: 3105: 3092: 3091: 3087: 3078: 3076: 3072: 3067: 3066: 3062: 3053: 3051: 3047: 3046: 3042: 3029: 3028: 3024: 3015: 3013: 3007: 3006: 2999: 2992: 2988: 2981: 2977: 2968: 2966: 2957: 2956: 2952: 2945:Digital Journal 2939: 2938: 2934: 2925: 2923: 2918: 2917: 2913: 2904: 2902: 2893: 2892: 2888: 2879: 2877: 2863: 2862: 2858: 2849: 2848: 2841: 2832: 2830: 2821: 2820: 2816: 2807: 2805: 2800: 2799: 2795: 2790:Wayback Machine 2779: 2775: 2766: 2762: 2752: 2750: 2741: 2740: 2729: 2719: 2718: 2714: 2705: 2703: 2694: 2693: 2689: 2675: 2674: 2670: 2661: 2659: 2653: 2652: 2648: 2638: 2637: 2633: 2625: 2621: 2612: 2610: 2601: 2600: 2593: 2584: 2582: 2573: 2572: 2549: 2540: 2538: 2529: 2528: 2524: 2515: 2513: 2509: 2508: 2504: 2495: 2493: 2481: 2480: 2476: 2446: 2445: 2438: 2429: 2427: 2423: 2422: 2418: 2409: 2407: 2398: 2397: 2393: 2384: 2383: 2379: 2372: 2355: 2354: 2350: 2341: 2339: 2330: 2329: 2325: 2316: 2314: 2300: 2299: 2295: 2291: 2286: 2211: 2206: 2204: 2201: 2191: 2182: 2181: 2174:constructionism 2162: 2146: 2119:Electronic Arts 2050:X Window System 2013:music sequencer 1948:Mozilla Firefox 1942:based upon the 1881: 1875: 1848: 1840: 1721:Lower power use 1635: 1633:Release history 1593:Three external 1509: 1507:Input and ports 1497: 1363:Internet access 1351: 1345: 1342: 1339: 1331:This article's 1327: 1323: 1316: 1280: 1269: 1220: 1209: 1203: 1200: 1189: 1176: 1172: 1165: 1073:Mary Lou Jepsen 1001: 936: 930: 927: 916: 900: 896: 889: 846:hard disk drive 808:Mary Lou Jepsen 772: 714:Quanta Computer 648: 642: 631:mesh networking 606:hard disk drive 567:Quanta Computer 513: 504: 483: 377:LX700@0.8 308:Quanta Computer 299: 280: 269: 268: 267: 262: 256: 253: 243: 230: 215: 204: 198: 195: 184: 173: 169: 158: 152: 149: 146: 138:This article's 134: 130: 119: 108: 102: 99: 93:Please help by 92: 80: 76: 39: 35: 28: 27:Laptop computer 23: 22: 15: 12: 11: 5: 5286: 5284: 5276: 5275: 5270: 5265: 5260: 5255: 5250: 5245: 5240: 5230: 5229: 5223: 5222: 5215: 5212: 5211: 5209: 5208: 5203: 5197: 5195: 5191: 5190: 5187: 5186: 5184: 5183: 5178: 5173: 5168: 5163: 5158: 5153: 5152: 5151: 5146: 5136: 5131: 5130: 5129: 5124: 5114: 5112:DragonBox Pyra 5109: 5104: 5103: 5102: 5097: 5088: 5086: 5082: 5081: 5079: 5078: 5073: 5068: 5063: 5058: 5053: 5048: 5043: 5037: 5035: 5031: 5030: 5028: 5027: 5018: 5013: 4996: 4971: 4965: 4944: 4931: 4922: 4883:Motorola A1200 4880: 4874: 4872: 4868: 4867: 4865: 4864: 4859: 4854: 4849: 4844: 4839: 4822: 4817: 4812: 4807: 4802: 4796: 4794: 4790: 4789: 4787: 4786: 4781: 4776: 4771: 4766: 4761: 4756: 4751: 4745: 4743: 4736: 4732: 4731: 4724: 4722: 4719: 4718: 4716: 4715: 4710: 4705: 4700: 4695: 4690: 4685: 4680: 4675: 4670: 4665: 4660: 4655: 4653:DragonBox Pyra 4650: 4645: 4639: 4637: 4633: 4632: 4630: 4629: 4624: 4619: 4614: 4609: 4604: 4598: 4596: 4592: 4591: 4589: 4588: 4583: 4578: 4576:Netgear DG834G 4573: 4568: 4563: 4558: 4553: 4547: 4545: 4541: 4540: 4538: 4537: 4532: 4527: 4522: 4517: 4512: 4507: 4501: 4499: 4495: 4494: 4492: 4491: 4486: 4481: 4476: 4471: 4466: 4461: 4456: 4451: 4446: 4441: 4436: 4431: 4422: 4417: 4408: 4403: 4398: 4393: 4388: 4386:Averatec Buddy 4383: 4377: 4375: 4371: 4370: 4368: 4367: 4362: 4357: 4352: 4347: 4342: 4336: 4334: 4327: 4321: 4320: 4315:(non-Android) 4314: 4312: 4311: 4304: 4297: 4289: 4280: 4279: 4277: 4276: 4271: 4266: 4260: 4257: 4256: 4254: 4253: 4248: 4243: 4238: 4233: 4228: 4223: 4211: 4206: 4201: 4196: 4191: 4186: 4181: 4176: 4171: 4166: 4161: 4156: 4151: 4146: 4141: 4136: 4131: 4125: 4122: 4121: 4116: 4114: 4113: 4106: 4099: 4091: 4085: 4084: 4073: 4072:External links 4070: 4068: 4067: 4061: 4053: 4039: 4027: 4015: 4003: 3991: 3982: 3974: 3960: 3948: 3939: 3937: 3934: 3932: 3931: 3909: 3884: 3860: 3849: 3831: 3813: 3795: 3778: 3756: 3738: 3726: 3714: 3703:. 21 July 2014 3692: 3671: 3650: 3626: 3602: 3591: 3571: 3557: 3533: 3512: 3488: 3471: 3443: 3431: 3420: 3418:, 7 March 2011 3405: 3401:LinuxWorld.com 3385: 3373: 3362: 3350: 3335: 3308: 3288: 3268: 3243: 3236:on 2008-12-07. 3220: 3200: 3150: 3124: 3103: 3085: 3060: 3040: 3022: 2997: 2986: 2975: 2950: 2932: 2911: 2886: 2856: 2839: 2814: 2793: 2773: 2760: 2727: 2712: 2687: 2668: 2646: 2631: 2619: 2591: 2547: 2522: 2502: 2474: 2436: 2416: 2391: 2377: 2370: 2364:. BasicBooks. 2348: 2323: 2301:Lanxon, Nate. 2292: 2290: 2287: 2285: 2284: 2279: 2274: 2269: 2264: 2259: 2254: 2249: 2244: 2239: 2234: 2229: 2224: 2218: 2217: 2216: 2200: 2197: 2161: 2158: 2154:Ceibal project 2145: 2142: 2057:window manager 2038: 2037: 2023: 2009: 1979: 1969: 1962: 1955:word processor 1951: 1936: 1927: 1874: 1871: 1837: 1836: 1833: 1830: 1823: 1810: 1795: 1785: 1782: 1779: 1778:2 watt ARM CPU 1772: 1771: 1768: 1761: 1751: 1741: 1725: 1722: 1719: 1716: 1693: 1692: 1689: 1682: 1672: 1661: 1645: 1634: 1631: 1599: 1598: 1591: 1584: 1578: 1571: 1568: 1562: 1531: 1524: 1508: 1505: 1496: 1493: 1411: 1410: 1403: 1353: 1352: 1330: 1328: 1321: 1315: 1312: 1292: 1291: 1288: 1287:mass-produced. 1284: 1278: 1273: 1267: 1262: 1255: 1246:input, ±11–18 1222: 1221: 1179: 1177: 1170: 1164: 1161: 1151:pixel geometry 1058: 1057: 1054: 1053: 1052: 1046: 1000: 997: 938: 937: 903: 901: 894: 888: 885: 842: 841: 831: 825: 822: 819: 782:in e-book mode 771: 768: 686:Seymour Papert 644:Main 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