If a disk rotates at 7200 rpm, what is the average rotational latency?
Q1. If a disk rotates at 7200 rpm, what is the average rotational latency?
Answer: 4.17 ms
Explanation: Average rotational latency = 1 / (2 * rpm / 60) = 60 / (2 * 7200) = 60 / 14400 = 0.00417 minutes = 4.17 ms.