The latest stories from the Technology section of the BBC News web site.
Updated: 50 min 51 sec ago
Why Porsche and other firms are investing in electric cars
Police officers in a Cheshire town are wearing body cameras in a pilot project aimed at tackling anti-social behaviour.
The world's biggest social networking site Facebook tightens its rules on posts relating to guns.
Los Angeles council votes to ban the use of electronic cigarettes in the city's restaurants, bars, nightclubs and public spaces.
After Ukraine accuses Russia of disrupting mobile networks, security experts warn that the countries are locked in a cyber stand-off.
A report suggests adverts on mobile phones have now overtaken pornography as the biggest malware threat.
Will unmanned ships be a reality on our oceans within the next decade? Rolls-Royce thinks such vessels are inevitable.
Family left iPad in mother's will say restrictive Apple security rules have rendered it useless.
Complaints pile up for eight years because Indian police officers did not know a computer password.
The blogging site Tumblr confirms it is taking part in talks with UK politicians as part of attempts to make the site safer for young people.
Is it time to download the homework?
The operating system that will not die
What luxury driverless cars could feel like
An app that allows homeowners to charge members of the public to use their toilet is being tested at the New Orleans Mardi Gras.
A report from security firm Trend Micro outlines the types of mobile malware readily available to Chinese cyber-gangs.
The US technology firm launches its new iPhone technology for cars at the Geneva Motor Show.
Thousands of users told to change passwords due to "compromised accounts" - but it has since said the emails were sent by mistake.
The troubled Bitcoin exchange, which filed for bankruptcy on Friday, releases a statement giving more details of the problems that caused it to close down.