PPSC Assistant in Disaster Management Department (Board of Revenue), Computer MCQs, PPSC Solved Past Papers MCQsBIOS are Used in ? Posted on July 24, 2021 by adminA. System B. CD ROM C. Hard DISK D. None of TheseShare 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)