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B. It provides only sequential access to stored data
Regarding magnetic disks, which are used for data storage in many types of electronic devices and computers, there are several key characteristics to consider. However, since the statement that might be considered “not true” for a magnetic disk was not provided amongst options in your question, I’ll outline some common truths about magnetic disks to aid in identifying misconceptions:
1. Magnetic disks store data magnetically: This is the fundamental principle behind their operation. They use magnetic storage to encode data by magnetizing tiny individual sections of the disk surface in different directions to represent binary data (1s and 0s).
2. They are random access devices: Unlike sequential storage media like magnetic tape, data on magnetic disks can be accessed in any order, which allows for faster data retrieval times.
3. Magnetic disks can be either hard disk drives (HDDs) or floppy disks: HDDs are used in computers, servers, and various electronic devices requiring large storage capacities, whereas floppy disks are an older technology with significantly lower storage capacities.
4. Magnetic disks have moving parts: This applies specifically to traditional hard disk drives, which use rotating disks (platters) coated with magnetic material and read/write heads that move over the surface to access data. This contrasts with solid-state drives (SSDs), which have no moving parts and use flash memory.
5. Capacity and speed can vary significantly: The storage capacity and speed of magnetic disks can vary based on the technology and the specific