Anti-Submarine Warfare Continuous Trail Unmanned Vessel
Media playback is unsupported on your device

The ship that sails without a crew and other tech news

BBC Click's Marc Cieslak looks at some of the best of the week's technology news, including details on the update to Apple's operating system and the testing of a ship that can sail without a crew.

More at and @BBCClick.

Go to next video: The drone that can climb walls