A ‘practical’ quantum computer

Are quantum computers ready to make the leap from the lab to the business? We visit two companies trying to make that a reality. Plus, we hear about Intel’s advances in neuromorphic computing, which mimics the workings of the brain. And will Amazon’s new home robot succeed where a long line of others have failed? Presented by Rory Cellan-Jones, with BBC senior tech reporter Jane Wakefield. Produced by Jat Gill.