That's okay, because there is scads of documentation on the origination and popular usage of the term "troll". It came into popular use circa 1993 on Usenet (due in no small part to a famous flamewar on alt.folklore.urban IIRC). The term has been part of the Jargon File for the better part of a decade. It would be really difficult to be involved in the computer industry and not be familiar with that term, as it was a well-known term in UNIX and Internet culture before either became really popular with the masses.
I used to build my own computers, but it isn't worth my time or money these days. A lot of the stuff I buy isn't buildable anyway (huge systems with somewhat esoteric hardware), and my desktop (which I usually carefully specify but have someone else build) is mostly just a terminal for the back-ends.
I've been using PCs since 1974 to operate scientific instrumentation like FTIRs, GC, and HPLCs...I have been at this awhile, so stop stamping your feed and crowing how knowledgable you are because of your kiddie geek slang.
I'd be impressed with your acronyms if it wasn't for the fact that my degrees are actually in chemistry and chemical engineering and I've used all the equipment in question many times (I even own a nice GC); using it amounts to tedious technician work. Definitely not the most memorable work I've had to do. Fortunately I actually found an interesting use for those skills many years later pursuing personal interests. I made my fame and fortune in the field of mathematics and computer science; I was good at the chemistry but it was a real snooze-fest most of the time.
"Troll" is not "kiddie geek slang", as it essentially pre-dates the Internet boom and the web, so the only people using it in the early years were people at big tech companies (usually ones with DARPA contracts) and universities. But since the mid-90s, most people that have used the Internet are at least familiar with the term. Hell, my parents know what it means and they aren't exactly savvy computer users (though they use the Internet a lot).