The first time I heard the term "shield" in connection with arduino [some years back], I had to google it. So, I'm curious if this term—which seem to me to translate roughly as "daughterboard" in pre-arduino terminology—was in use [roughly with this or a similar meaning] in some other EE context before arduino became popular.
(This question actually came to me while I was reading our meta-thread about the arduino tag, in which someone noticed that arduinistas seem to use at least some terminology that's not common in EE at large.)
Answer
No.
The whole "shield" thing came about at about the exact time as the arduino became popular.
"Shield"s were, are, and will still be daughterboards or modules in pretty much any serious context for the foreseeable future.
<< snark>>
Speaking loosely, "shield" means "extension module I don't really understand (because electronics are just like lego, right?)"
<< /snark>>
I do make judgments about the knowledge of people who refer to plug-in modules as a "shield", though.
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