The article leans on the significant change of emphasis renaming from CTR (computing, tabulating, recording) to IBM (business machines) implies - but doesn’t lampshade the more specific contrast the name makes with Thomas J Watson’s previous employer, and the company IBM was trying to outcompete: NCR. Where NCR was ‘national’, IBM was international. Where NCR handled ‘cash’, IBM handled ‘business’. And where NCR made only ‘registers’, IBM made all manner of ‘machines’.