Computer System, Computer Science, Hardware.
bit of the target sector to pass under the head. Rotational latency is usually 1–10 ms. 读写头移动到指定磁道后等待目标扇区的第一个bit旋转到读写头下的时间，依赖磁盘的转速，单ms级。 Transfer time 传送时间 When the first bit of the target sector is under the head, the drive can begin to read or write the contents of the sector. The transfer time