Meaning: Able to withstand attack. Synonyms: unassailable; unattackable; impregnable; inviolable; secure; strong. Context examples: an impregnable fortress / fortifications that made the frontier inviolable. Similar: invulnerable (immune to attack; impregnable)
Definition - What does Magnetic Disk mean? A magnetic disk is a storage device that uses a magnetization process to write, rewrite and access data. It is covered with a magnetic coating and stores data in the form of tracks, spots and sectors. Hard disks, zip disks and floppy disks are common examples of magnetic disks.
Is a hard disk a type of magnetic storage device? A hard disk drive is a type of magnetic storage device. A magnetic  storage device stores data on a magnetized medium. Other types of  magnetic storage includes magnetic recâ¦ording tapes and the stripes  on credit cards. 4 people found this useful.