COMMUN I CAT I ONS

CACM.ACM.ORG

OF THE

AC M

06/2009 VOL. 52 NO.06

One Laptop Per Child:

Vision vs. Reality

Hard-Disk Drives:

The Good, The Bad,

and the Ugly

How CS Serves

The Developing World

Network Front-End Processors

The Claremont Report On Database Research

Autonomous Helicopters

Association for Computing Machinery