PPSC Past Paper Sub inspector Punjab Police 2019 Solved MCQs, Computer MCQs, PPSC Solved Past Papers MCQsIn computing, NOS stand for? Posted on April 13, 2021 by Rana TahirA. Non-operating software B. Network Operating System C. Node Open Software D. Neutral Operating SystemShare this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)