If you didn't already know, what do you think a tool called "emacs" does?
replies(9):
Combine things? Nope. Its purpose is to separate things...
Its not just the software industry.
"Combine harvester" showed up in some places later where context was needed to figure out what "combine" means, but it was seemingly only for context. "Combined harvester-thresher harvester" is pointlessly redundant.