But the fastest-growing part of its business – now owned by Japan’s SoftBank but still headquartered in the UK – spans multiple other fields. Arm has also shouldered its way into the data center, where the x86 architecture of Intel and AMD previously reigned unchallenged. In a much-talked-about and controversial departure from its licensing roots, Arm started to make its own central processing units (CPUs) this year. For Layer 1, which covers the more demanding functions, Marvell supplies a custom chip that also features some of Arm's technology. Related:Why IPv6 Is the Non-Negotiable Foundation for AI-Agentic SystemsKeep reading this article in Light Reading, a Data Center Knowledge partner site