Question
In: Computer Science
Question 2 (b) USB flash drive, CD-ROM and Hard disk are commonly used to store data...
Question 2
(b) USB flash drive, CD-ROM and Hard disk are commonly used to store data such as documentation, movies and songs.
Based on the statement given above, answer the following questions:
- Compare TWO (2) similarities and TWO (2) differences in between USB flash drive, CD-ROM and Hard disk.
- Based on your answer in (i), which storage device is recommended? Provide your own justifications.
[12 marks]
Solutions
Expert Solution
i)
1) Similarities between USB flash drive, CD-ROM and Hard disk:
-
USB flash drive, CD-ROM and Hard disks can be used to store any format of data like audio,video,documentation,etc.
-
USB flash drive, CD-ROM and Hard disks can be used as secondary external storage for data.
2) Differences between USB flash drive, CD-ROM and Hard disk:
-
CD-ROM is an abandoned/obsolete format to store data as compared to USB flash drive and Hard disks.
-
CD-ROM can hold lesser amount of data as compared to the USB flash drive and Hard disks.
-
USB flash drive and CD-ROM do not require any cables for the data transfer as needed for the hard disks.Hence USB flash drive and CD-ROM are more portable.
-
Accessing data on Hard disks takes much longer than on USB flash drive and CD-ROM.
-
USB flash drive and CD-ROM are less expensive than the hard disk.
ii)Based on the similarities and differences mentioned in point (i),the recommendation of the storage device depends on what is required :
- If a person wants ease of portability and faster data access ,then he/she can go in for USB flash drive rather than a Hard disk.
- On the other hand if a person is looking only for the storage capacity,then he/she can go with Hard disk.
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