Wired: High Security for $100 Laptop

“The One Laptop Per Child project, which proposes to give every
child in the developing world a computer of his own, dazzled fans
with the unveiling of its little green ‘$100 laptop’ in November
2005. Now it’s impressing hard-bitten security geeks with a plan to
lock down the hundreds of millions of educational machines against
spyware and computer intruders.

“The laptop, officially called the XO, includes a swiveling LCD
screen that can switch between low-resolution color and
higher-resolution black-and-white…”

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