If Silicon Graphics Inc Irix and DEC Unix have been built as 64- bit Unix operating systems from the ground-up – and industry analysts routinely point to the advantages of native 64-bit system software over operating system code that started life as 32-bit – why is it that the likes of Sun, HP and IBM Unixes, all derived from 32-bit work, look set to be the Unixes of choice in future? Because there’s technology and then there’s marketing.
