XO

The XO laptop for One Laptop per Child was designed collaboratively by experts from academia and industry to combine innovations in technology and learning.

OLPC considered the need to weather extreme environmental conditions such as high heat and humidity, and to support easy field repair by children and local-language support. As a result, the XO laptop is durable, functional, energy-efficient, responsive, and fun.

The XO is about the size of a textbook and lighter than a lunchbox. Thanks to its flexible design and "transformer" hinge, the laptop easily assumes any of several configurations: standard laptop use, e-book reading, and gaming. It has rounded edges, an integrated kid-sized handle, and (in most cases) a sealed, rubber-membrane keyboard.

Design was a priority from the start: the laptop could not be big, heavy, fragile, dull, or dangerous. The distinctive appearance both appeals to the intended users and discourages gray-market traffic. There is no mistaking what it is and for whom it is intended.

The XO is also designed for constant connectivity. A few children working together under a tree can connect to each other without any other hardware, and a class full of students can share collaborative activities with one another and see what their classmates are doing.

The XO is compliant with the European Union's RoHS Directive, containing no hazardous materials. Its LiFePO4 batteries contain no toxic heavy metals, plus it features enhanced battery management for an extended recharge-cycle lifetime. It will also tolerate alternate power-charging sources, such as car batteries. Children may also have a second battery for group charging at school while they are using their laptop in class.

The XO has no hard drive to crash and only two internal cables. For added robustness, the machine's plastic walls are 2mm thick, as opposed to the standard 1.3mm. Its wireless antennas, which far outperform the typical laptop, double as external covers for the USB ports, which are protected internally as well. The display is also cushioned by internal bumpers.

The estimated product lifetime is at least four years. To help ensure such durability, the machines are being subjected to factory testing to destruction, as well as field testing by children.

For more details see http://one.laptop.org/about/hardware

Later versions

The XO-1.5 entered mass production in 2009, and saw some minor design upgrades in 2010. Key differences from the original XO-1are that the new model has 1GB of RAM, 4GB of Flash storage (upgradable to 32GB). It has a more responsive keyboard and touchpad, and offers the option of membrane or traditional keyboards. It charges 25% faster and suspends more efficiently, extending the effective battery life.

The XO-1.5 Lite is a variation with 512MB of RAM and 2GB of Flash storage

There is a lower power XO-1.75 model on its way.

XO-3

The XO-3 is a tablet scheduled for production in Q4 of 2012, to complement the XO-1 series.

For more details see http://one.laptop.org/about/specs

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