It's an industry specific, aviation, app. Chances are, if you are there you have a glancing familiarity with what it means and how it works. If you didn't know

It's an industry specific, aviation, app. Chances are, if you are there you have a glancing familiarity with what it means and how it works. If you didn't know and were interested 2 minutes on Wikipedia would have you sorted out. Unless writers are getting paid per word most computer blogs aren't defining CPU, GPU, USB, HDMI for their readers.