Q1. Which of the following statements is NOT true about a floppy disk?
A Only 1.44 MB can be stored in some versions.
B Data can only be read or written when the write-protect notch is closed or covered. Correct
C Floppy disks are made up of Mylar plastic.
D The Mylar plastic surface is coated with iron oxide, a magnetic substance.
Explanation
A common floppy disk version stores 1.44 MB, so the capacity statement is acceptable for some versions. Floppy disks use a flexible Mylar plastic base, and that surface is coated with magnetic material such as iron oxide, so those material statements are true. The write-protect notch or tab controls writing, not reading. Data can be read even when writing is protected; the protection only prevents new data from being written or existing data from being changed. Hence the read-or-write statement is the one that is not true.