Arm's marketing department doesn't consider it an abbreviation any more. The progression of the Arm brand goes something like this: * ARM (abbreviation for Ad

Arm's marketing department doesn't consider it an abbreviation any more. The progression of the Arm brand goes something like this: * ARM (abbreviation for Advanced RISC Machines) * ARM (not an abbreviation for anything, but looks like one) * Arm (current name, still not an abbreviation, now looks like a word) * arm (what the current logo looks like, even though the company name has a capital letter)