Andy Glew's comp-arch.net wiki, http://semipublic.comp-arch.net
If you are reading this elsewhere, e.g. at site waboba.info, it is an unauthorized copy, and probably a malware site.
comp-arch.net wiki on hold from October 17, 2011
In-order
From CompArch
See in-order versus out-of-order.
There is no widespread acronym for in-order, while there is one for out-of-order (OOO).
Attempts to foist acronyms such as IO or InO for in-order have not caught on - even with me, the foister.