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Five countries — Argentina, Brazil, Libya, Nigeria and Thailand — have made tentative commitments to put the computers into the hands of millions of students, with production in Taiwan expected to begin by mid-2007.

The laptop does not come with a Microsoft Windows operating system or even a hard drive, and the screen is small. And the cost is now closer to $150 than $100. But the price tag, even compared with low-end $500 laptops now widely available, transforms the economic equation for developing countries.


The idea is also that children can take on much of the responsibility for maintaining the systems, rather than relying on or creating bureaucracies to do so.

“We believe you have to leverage the kids themselves,” Ms. Jepsen said. “They’re learning machines.” As an example, she pointed to the backlight used by the laptop. Although it is designed to last five years, if it fails it can be replaced as simply as batteries are replaced in a flashlight. It is something a child can do, she said.

The project now has tentative commitments for three million computers and will begin large-scale manufacturing when it reaches five million with separate commitments from at least one country each in Africa, Latin America and Asia. Based on current negotiations, Mr. Negroponte says he expects that goal to be reached by mid-2007.

Mr. Negroponte said the manufacturing cost was now below $150 and that it would fall below $100 by the end of 2008.

One factor setting the project apart from earlier efforts to create inexpensive computers for education is the inclusion of a wireless network capability in each machine.

The project leaders say they will employ a variety of methods for connecting to the Internet, depending on local conditions. In some countries, like Libya, satellite downlinks will be used. In others, like Nigeria, the existing cellular data network will provide connections, and in some places specially designed long-range Wi-Fi antennas will extend the wireless Internet to rural areas.


When students take their computers home after school, each machine will stay connected wirelessly to its neighbors in a self-assembling “mesh” at ranges up to a third of a mile. In the process each computer can potentially become an Internet repeater, allowing the Internet to flow out into communities that have not previously had access to it.

Each machine will come with a simple mechanism for recharging itself when a standard power outlet is not available. The designers experimented with a crank, but eventually discarded that idea because it seemed too fragile. Now they have settled on several alternatives, including a foot pedal as well as a hand-pulled device that works like a salad spinner.

Ms. Jepsen’s display, which removes most of the color filters but can operate in either color or monochrome modes, has made it possible to build a computer that consumes just 2 watts of power, compared with the 25 to 45 watts consumed by a conventional laptop. The ultra-low-power operation is possible because of the lack of a hard drive (the laptop uses solid-state memory, which has no moving parts and has fallen sharply in cost) and because the Advanced Micro Devices microprocessor shuts down whenever the computer is not processing information.

The designers have also gambled in designing the laptop’s software, which is based on the freely available Linux operating system, a rival to Microsoft’s Windows. Dispensing with a traditional desktop display, the software substitutes an iconic interface intended to give students a simpler view of their programs and documents and a maplike view of other connected users nearby.

A video-camera lens sits just to the right of the display, for use in videoconferencing and taking digital still photos of reasonable quality. The computer comes with a stripped-down Web browser, a simple word processor and a number of learning programs. For e-mail, the designers intend to use Google’s Web-based Gmail service.

Only one program at a time can be viewed on the laptop because of its small 7.5-inch display.

Mr. Negroponte said he had been re-energized by the recent arrival of the first 1,000 working prototypes. The prototypes, he said, will give him new ammunition to convince government leaders that his tiny machines can be a positive force for social development.

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There is nothing that tops this invention



The woman clearly tops all other inventions.

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