said Wednesday it had won an contract with worth as much as $2.5 billion over an initial four-year period, with two three-year options -- 10 years.

This is , which got the green light from NASA just last week to begin work. NASA spends about $1.8 billion annually on IT.

HP will take responsibility for all of NASA's end-user computing, including personal computers and other devices, under this contract.

"HP will modernize NASA's entire end user infrastructure, by delivering a full range of personal computing services and devices to more than 60,000 users," said Dennis Stolkey, HP senior vice president and general manager, U.S. Public Sector, HP Services.

HP will also provide support as well for tools to "allow its employees to more easily collaborate in a secure computing environment," said Stolkey.