News bites: IBM develops chip that mimics human brain

IBM, with help from Defense Department funding, unveils computer chips that behave more like human brains.

BlackBerry maker Research in Motion is developing a music service for its phones.

The Oxford English Dictionary added "woot," "retweet," "sexting" and "cyberbullying" to its latest edition.

In a conference call Thursday, HP's CEO Leo Apotheker explained his company's decision to buy a software company and spin off its PC business.