rotational latency
NounSynonyms:
latency
Open English WordNet
Noun (1)
- (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write headSynonyms: latencyType of time interval, intervalPart of access time
Word of the day · Sep 28About this word
onerousadjective
What does it mean? Question 1 of today’s quiz
Free On-line Dictionary of Computing
rotational latency
<storage, hardware> The time for the start of the required sector on a disk to appear underneath the read/write head. The worst case is where it has just passed the head when the request is received. For a disk drive with N heads per surface, rotating at R revolutions per minute, the average rotational latency will be
L = 30/NR seconds.
Rotational latency is one component of access time.
(2009-11-06)