Facebook announces it will buy Oculus VR, a Californian company specialising in virtual reality products, for around $2bn (£1.2bn).

The games developer behind Candy Crush Saga, King, is valued at over $7bn (£4.2bn) after it raises $500m via a share sale in New York.

US chipmaker Intel steps up its investment in wearable technology with the acquisition of Basis Science, a firm known for its health tracking services and devices.

President Barack Obama plans to ask Congress to end bulk collection of US phone records by the National Security Agency, senior officials say.

A man wins a 16-year dispute over a laptop bought at the Aberdeen branch of PC World at the Supreme Court in London.

Twitter is investigating a fault that caused tweets posted by Lady Gaga, One Direction and the late actor Corey Monteith to disappear.

Turkish users of Twitter are expected to regain access shortly after a court orders the suspension of the controversial ban on the social media site.

Telecoms company ZTE makes a net profit of 1.36bn yuan (£133m) in 2013 due to 4G product development and partnerships with international operators, the Chinese company says.