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.
disk drive - computer hardware that holds and spins a magnetic or optical disk and reads and writes information on it. disc drive, hard drive, Winchester drive. drive - (computer science) a device that writes data onto or reads data from a storage medium. fixed disk, hard disc, hard disk - a rigid magnetic disk mounted permanently in a drive unit. computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures.