Big Blue puts on a Red Hat

On Sunday IBM announced that it would buy Red Hat, the largest vendor of open-source software, for $34bn. This is the biggest-ever deal between software companies and shows how much pressure IBM is under to adapt to a changing IT sector, after falling behind in cloud computing. Red Hat’s technology is supposed to create an über-cloud, allowing computing workloads to run anywhere. But firms may still shy away from IBM’s new platform.