Labels:bulletin board | reckoner | sky OCR: The data De accessed may be located anywhere between the edge the disk and its center The time takes the read -write heads to move across the width of the disk is knowr as the seek time The head usually has to move about half of the disk's width, so this considered the average seek time Each read/write head surface has at least one head, sometimes two Using two heads should reduce by half the distance reach certain racl and acc obpe known
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