Multiple choice What is the size of the diskettes used by IBM's newer PS/2 personal Computers? 5 ½ � 8 � 3 ½ � 2 ½ � Reveal answer Fill a bubble to check yourself C Correct answer Explanation The IBM PS/2 series, introduced in 1987, famously standardized the use of 3.5-inch floppy disk drives, moving away from the 5.25-inch format used by earlier PCs.