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Give the similarities between magnetic disks and magnetic tapes.

Give the similarities between magnetic disks and magnetic tapes.

Answers

Kavungya
(i). Both are coated with magnetic materials.
(ii). Have high data storage capacities, i.e. can store hundreds of thousands of bytes of data.
(iii). Have high data transfer rates.
(iv). Hold data permanently, i.e. are Non-volatile.
(v). Cheap and convenient; hence, the reason why they are mostly used for secondary storage in PCs.
(vi). Require drives in order to read or write data from or into a disk or tape.
(vii). Data stored a magnetic tape & disk is not human readable, i.e., to verify the accuracy of data stored on the tape or disk, a computer run would have to be performed.
(viii). Both are adversely affected by dust, stroke & magnetic fields, which can distort data stored in them causing data reading errors.
(ix). Tapes or disks do not fully use their recording surfaces. The Inter-Block Gaps in tapes occupy a large space; while in disks, a space has to be left for purposes such as copying & moving of files, defragmentation of the disk, etc.
(x). Both tapes & disks are re-usable. When information on a tape or disk is no longer required, it can simply be “written over” with new data.
(xi). Data in them can be read sequentially, e.g., when playing music or watching a movie on a disk.
Kavungya answered the question on April 2, 2019 at 07:28

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