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What are the advantages of Magnetic Disks?

What are the advantages of Magnetic Disks?

Answers

Kavungya
(i). They are cheap (Low cost).
Although disk drives are expensive, the use of removable disk packs enables storage capacity to be increased very cheaply.
E.g., to improve the storage capability of a floppy disk system, you simply need to buy additional disks at low cost.
The cost of Hard disks has decreased making them to be widely used on microcomputers.
(ii). Have relatively fast access times for data stored anywhere on the disk.
For hard-drives, the data Transfer rate between memory & disk is 300,000 – 2 million characters per second, while that of floppy disks is between 30,000 – 150,000 cps.
(iii). Have high storage capacities.
Hard disks can store tens of millions to hundreds of millions of characters while floppy disks can store between 100KB – 2 MB of data.
(iv). They are re-usable - the disk space can be re-used by simply recording new data over old data. Also, the data stored in a magnetic disk can be easily corrected or updated.
(v). They are Non-volatile - information is stored permanently.
Kavungya answered the question on April 2, 2019 at 07:57

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