[Dr._Joseph_Warren]

In engineering, back in the 80’s, a communication protocol in which one device controls one or more other devices was known as a master/slave system. This was the standard phrase used since the beginning of communication technology.

In the late 80’s, the PC crowd must have stumbled on a technical manual and (shockingly) read it.

Now the term ‘master/slave’ cannot be used. Instead you must use primary/secondary.

What is really stupid about all of this is that historically there has never been an ethnic norm for which race is the master and which is the slave.

[Red Boots]

Now the term ‘master/slave’ cannot be used. Instead you must use primary/secondary.

This has actually spread to real estate, where the master bedroom has been renamed "the owner's suite". No kidding !