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This description of how a magnetic hard disk drive works is partially correct but contains some errors: 'A magnetic hard disk spins very quickly - AQA - GCSE Computer Science - Question 8 - 2021 - Paper 1
Question 8
This description of how a magnetic hard disk drive works is partially correct but contains some errors: 'A magnetic hard disk spins very quickly. The surface of the ... show full transcript
Worked Solution & Example Answer:This description of how a magnetic hard disk drive works is partially correct but contains some errors: 'A magnetic hard disk spins very quickly - AQA - GCSE Computer Science - Question 8 - 2021 - Paper 1
Step 1
Describe three factual errors in the description.
Answer
- There isn't a groove on the surface of the disk where data is stored; instead, data is stored magnetically on the disk.
- There isn't a needle that runs along the surface; the correct mechanism involves a read/write head that hovers above the disk without making contact.
- There aren't any bumps used for data detection; the data is read as electromagnetic changes on the disk.
Step 2
Step 3