Which of the following is a characteristic of a hard disk's platter?
A. It is a non-removable part of an SSD
B. It stores data in flash cells
C. It rotates at a constant speed
D. It is made of silicon
Answer: Option C
Solution (By JKSSB Mock Tests)
Platters in a hard disk rotate at a constant speed (e.g., 7200 RPM). They are made of aluminum/glass with magnetic coating, not silicon, and are used in HDDs, not SSDs.
Explanation:
Computer systems process binary logic states (0 and 1). Thus, memory capacities naturally scale using powers of 2 (e.g., 2, 4, 8, 16, 32, 64).
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