Oxford Cambridge and RSA
GCSE (9-1) Computer Science
Computer Systems
J277/01
Topic: Unit 1.3 Secondary Storage
Time allowed: 30 minutes
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INSTRUCTIONS
Use black ink.
Answer all the questions.
INFORMATION
The total mark for this paper is 20.
The marks for each question are shown in brackets [ ].
Turn over
1
Three types of secondary storage are Optical, Magnetic, and Solid State.
(a) Tick one box in each row to show which storage type the statement best describes.
[3]
Statement
Optical
Magnetic
Solid State
Has the fastest read/write speeds
Has the lowest cost per Gigabyte (GB)
Is the most durable (robust) when moved
(b) Give one example of an Optical storage device.
[1]
2
A professional photographer needs a secondary storage device to transport thousands of high-resolution photos from a photoshoot to their studio.
They choose a portable Solid State Drive (SSD) rather than a Magnetic Hard Disk Drive (HDD).
(a) Justify one reason why an SSD is more suitable than a Magnetic HDD for transporting data.
[2]
(b) Justify one reason why an SSD is more suitable than a Magnetic HDD for editing the high-resolution photos.
[2]
Turn over
3
A school file server needs to store backup copies of all student work from the last 10 years. The data will be accessed very rarely.
Identify the most suitable type of secondary storage for this purpose and justify your choice.
[3]
Type:
Justification:
4
Explain two disadvantages of using Optical storage (such as a CD or DVD) compared to a USB Flash Drive (Solid State) for transferring homework files.