A school is deciding which storage device to use for backing up student coursework files. (a) Complete the table below to compare three types of storage dev...
Question 1 Report
A school is deciding which storage device to use for backing up student coursework files.
(a) Complete the table below to compare three types of storage device. [6]
| Feature | Hard disk drive (HDD) | Solid state drive (SSD) | USB flash drive |
|---|---|---|---|
| Relative capacity | |||
| Relative speed |
(b) Recommend which device the school should use for daily backups. Give a reason for your answer. [2]
Answer Details
(a)
| Feature | Hard disk drive (HDD) | Solid state drive (SSD) | USB flash drive |
|---|---|---|---|
| Relative capacity | Very high, typically up to several terabytes. [1] | High, typically up to several terabytes, but more expensive per gigabyte than an HDD. [1] | Low to moderate, typically up to 256 GB. [1] |
| Relative speed | Moderate; slower due to moving mechanical parts (spinning platters and read/write heads). [1] | Very fast, as it uses electronic circuits with no moving parts, enabling rapid data access. [1] | Moderate; adequate for file transfer but generally slower than an SSD. [1] |
(b) The school should use an external HDD for daily backups because it offers very large storage capacity at a relatively low cost per gigabyte. [1] This is important when backing up large volumes of student coursework files regularly, as the school needs enough space to store all the data without frequent replacement of the storage medium. [1]
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