Tech review: A look back at the week's headlines
Apple and Google face competition from Amazon with the launch of its own internet-connected TV set-top box. Amazon Fire TV is already on sale in the US for $99 (£60).
Microsoft has unveiled a voice-controlled assistant called Cortana and Pixelbots are swarming to create images on tables and whiteboards.
BBC Click's Dan Simmons has more details of these and other technology stories of the week.