Storage devices MCQ - Practice Questions with Answers

Among the listed devices, a hard disk normally provides the largest data-storage capacity. Floppy disks hold only a very small amount of data and are obsolete for large storage. A compact disk stores more than a floppy disk, but far less than a typical hard disk. Optical disk is a broader category that includes media such as compact disks and DVDs; in this comparison, the specific hard disk is the device associated with maximum storage capacity. Therefore the official key correctly selects hard disk.

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.