PPSC Past Paper Care Taker BS-14 (L&HR) 2019 Solved MCQs, Computer MCQs, Electronic Record Keeping MCQs, PPSC Solved Past Papers MCQsWhich one is the disadvantage of a laser printer?A. Quieter than an impact printer B. Very Slow C. Low Quality Output D. None of these Which one is not a multi-tasking operating system?Dot Matrix printer is type of?