Mark Hurd
Media playback is unsupported on your device
Video

Hewlett Packard sues Hurd over Oracle appointment

Computer maker Hewlett Packard (HP) has filed a lawsuit against its former head Mark Hurd in an attempt to stop him joining database software maker Oracle.

HP says that he is privy to highly sensitive information which, if shared with Oracle, would undermine its business.

Caroline Hepker has been looking at the battle in Silicon Valley.

Go to next video: Choppy waters for US PC giants